0000000000927017

AUTHOR

M. Meyer

showing 47 related works from this author

K− over K+ multiplicity ratio for kaons produced in DIS with a large fraction of the virtual-photon energy

2018

The K$^{-}$ over K$^{+}$ multiplicity ratio is measured in deep-inelastic scattering, for the first time for kaons carrying a large fraction $z$ of the virtual-photon energy. The data were obtained by the COMPASS collaboration using a 160 GeV muon beam and an isoscalar $^6$LiD target. The regime of deep-inelastic scattering is ensured by requiring $Q^2>1$ (GeV/$c)^2$ for the photon virtuality and $W>5$ GeV/$c^2$ for the invariant mass of the produced hadronic system. Kaons are identified in the momentum range from 12 GeV/$c$ to 40 GeV/$c$, thereby restricting the range in Bjorken-$x$ to $0.010.75$. For very large values of $z$, $i.e.$ $z>0.8$, we observe the kaon multiplicity ratio to fall …

Hadron0 [higher-order]target: isoscalar01 natural sciencesCOMPASSdeep inelastic scattering [muon+ nucleon]High Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)K: multiplicityHigh Energy Physics - Phenomenology (hep-ph)[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]isoscalar [target]Invariant massNuclear ExperimentBosonPhysicsQuantum chromodynamicsquark: fragmentation functionhigher-order: 0photonperturbation theory: higher-orderhep-phмюоныlcsh:QC1-999Bjorken [scaling]High Energy Physics - Phenomenologybeam [muon]рассеяниеfactorization [cross section]multiplicity [pi]Particle Physics - Experimentperturbation theory [quantum chromodynamics]Particle physicsNuclear and High Energy PhysicsMesonFOS: Physical sciencesratio [multiplicity]530fragmentation function [quark]x-dependencescaling: Bjorkencharged particle: multiplicityphase spacemultiplicity [charged particle][ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]виртуальные фотоны0103 physical sciencesddc:530universalityquantum chromodynamics: perturbation theory010306 general physicsParticle Physics - Phenomenologymuon+ nucleon: deep inelastic scatteringMuonmultiplicity: ratiopi: multiplicity010308 nuclear & particles physicshep-exmuon: beamMultiplicity (mathematics)cross section: factorizationCERN SPSDeep inelastic scatteringhigher-order [perturbation theory][PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]каоны[ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experimentmultiplicity [K]hadronizationlcsh:Physicsexperimental resultsPhysics Letters B
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Solar neutrino physics with Borexino

2018

We present the most recent solar neutrino results from the Borexino experiment at the Gran Sasso underground laboratory. In particular, refined measurements of all neutrinos produced in the {\it pp} fusion chain have been made. It is the first time that the same detector measures the entire range of solar neutrinos at once. These new data weakly favor a high-metallicity Sun. Prospects for measuring CNO solar neutrinos are also discussed.

fusionPhysics - Instrumentation and Detectorsneutrino: solarPhysics::Instrumentation and DetectorsQC1-999Astrophysics::High Energy Astrophysical PhenomenaSolar neutrinoFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesNuclear physics0103 physical sciencesAstrophysics::Solar and Stellar Astrophysics[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Nuclear Experiment (nucl-ex)Nuclear Experiment010303 astronomy & astrophysicsBorexinoPhysicsp p: fusion010308 nuclear & particles physicsPhysicsHigh Energy Physics::PhenomenologyInstrumentation and Detectors (physics.ins-det)Gran Sasso* Automatic Keywords *Physics::Space PhysicsUnderground laboratoryBorexinoHigh Energy Physics::ExperimentAstrophysics::Earth and Planetary AstrophysicsNeutrinoexperimental resultsSciPost Physics Proceedings
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Search for muoproduction of X(3872) at COMPASS and indication of a new state X˜(3872)

2018

Abstract We have searched for exclusive production of exotic charmonia in the reaction μ + N → μ + ( J / ψ π + π − ) π ± N ′ using COMPASS data collected with incoming muons of 160 GeV/c and 200 GeV/c momentum. In the J / ψ π + π − mass distribution we observe a signal with a statistical significance of 4.1 σ. Its mass and width are consistent with those of the X ( 3872 ) . The shape of the π + π − mass distribution from the observed decay into J / ψ π + π − shows disagreement with previous observations for X ( 3872 ) . The observed signal may be interpreted as a possible evidence of a new charmonium state. It could be associated with a neutral partner of X ( 3872 ) with C = − 1 predicted b…

PhysicsNuclear and High Energy PhysicsMuonMass distribution010308 nuclear & particles physicsBranching fractionHadronState (functional analysis)01 natural sciencesMomentum0103 physical sciencesTetraquarkAtomic physics010306 general physicsX(3872)Physics Letters B
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Contribution of exclusive diffractive processes to the measured azimuthal asymmetries in SIDIS

2019

Hadron leptoproduction in Semi-Inclusive measurements of Deep-Inelastic Scattering (SIDIS) on unpolarised nucleons allows one to get information on the intrinsic transverse momentum of quarks in a nucleon and on the Boer-Mulders function through the measurement of azimuthal modulations in the cross section. These modulations were recently measured by the HERMES experiment at DESY on proton and deuteron targets, and by the COMPASS experiment using the CERN SPS muon beam and a $^6$LiD target. In both cases, the amplitudes of the $\cos\phi_h$ and $\cos 2\phi_h$ modulations show strong kinematic dependences for both positive and negative hadrons. It has been known since some time that the measu…

HERMES experimentvirtual [photon]Hadronleptoproduction [hadron]measurement methodsNuclear TheoryVirtual particleHERMES01 natural sciencesSIDISCOMPASShadron: leptoproductionHigh Energy Physics - Experimentazimthal asymmetrieproduction [diffraction]High Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)semi-inclusive reaction [deep inelastic scattering][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]COMPASS experimentNuclear ExperimentPhysicsdeep inelastic scattering: semi-inclusive reactionnucleonhep-phphoton: energyTMD obsvervableangular dependenceHigh Energy Physics - Phenomenologymodulationhadron: final stateTMD obsvervablesbeam [muon]asymmetry [angular distribution]interpretation of experimentsdeuteron: targettransverse momentum [quark]Nucleondiffraction: productionParticle Physics - ExperimentQuarkNuclear and High Energy PhysicsParticle physicsazimthal asymmetriesexclusive reactionangular distribution: asymmetryMesonFOS: Physical sciences530vector meson: production0103 physical scienceskinematics: effectlcsh:Nuclear and particle physics. Atomic energy. Radioactivityddc:530final state [hadron]010306 general physicsParticle Physics - PhenomenologyMuonmuon: beam010308 nuclear & particles physicsproduction [vector meson]hep-exenergy [photon]CERN SPSeffect [kinematics]lcsh:QC770-798quark: transverse momentumHigh Energy Physics::ExperimentTMD obsvervables; azimthal asymmetries; SIDIStarget [deuteron]photon: virtual
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Refined carotenoid analysis of the major light-harvesting complex of Mantoniella squamata

1997

The major light-harvesting complex (LHC) of the prasinophycean alga Mantoniella squamata is unique compared to other chlorophyll (Chl) a/b-binding LHC with respect to the primary protein structure and the pigmentation. Although the presence of Chl a, Chl b, a Chl c-type pigment and the xanthophylls neoxanthin, violaxanthin and prasinoxanthin was clearly determined, several carotenoids remained unidentified or were described controversially. We re-analysed the carotenoid composition and identified a new set of xanthophylls present in the LHC: uriolide, micromonol, micromonal and dihydrolutein. Additionally, one hydrophobic component was detected, presumably a xanthophyll. The pigment analysi…

chemistry.chemical_classificationChlorophyll aChromatographyPhysiologyfood and beveragesmacromolecular substancesPlant ScienceBiologyLight-harvesting complexchemistry.chemical_compoundPigmentchemistryBiochemistryNeoxanthinXanthophyllChlorophyllvisual_artpolycyclic compoundsvisual_art.visual_art_mediumCarotenoidViolaxanthinPhotosynthetica
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Recent Borexino results and perspectives of the SOX measurement

2017

International audience; Borexino is a liquid scintillator detector sited underground in the Laboratori Nazionali del Gran Sasso (Italy). Its physics program, until the end of this year, is focussed on the study of solar neutrinos, in particular from the Beryllium, pp, pep and CNO fusion reactions. Knowing the reaction chains in the sun provides insights towards physics disciplines such as astrophysics (star physics, star formation, etc.), astroparticle and particle physics. Phase II started in 2011 and its aim is to improve the phase I results, in particular the measurements of the neutrino fluxes from the pep and CNO processes. By the end of this year, data taking from the sun will be over…

Sterile neutrinoneutrino: solarPhysics::Instrumentation and DetectorsSolar neutrinoQC1-999scintillation counter: liquidanomaly[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energy01 natural sciencesStandard ModelNuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear fusion010306 general physicsNeutrino oscillationBorexinoPhysicsgallium010308 nuclear & particles physicsStar formationPhysicsstar: formationstabilityneutrino: sterilesensitivityberylliumGran SassoLSNDelectron: lifetimeHigh Energy Physics::ExperimentBorexinoneutrino: oscillationnuclear reactorNeutrinoneutrino: geophysicstalk: Kolymbari 2017/08/17experimental results
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The measurement of the pp chain solar neutrinos in Borexino

2019

Proton–proton chain reactionPhysicsParticle physicsSolar neutrinoBorexino
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First measurement of the Sivers asymmetry for gluons using SIDIS data

2017

The Sivers function describes the correlation between the transverse spin of a nucleon and the transverse motion of its partons. It was extracted from measurements of the azimuthal asymmetry of hadrons produced in semi-inclusive deep inelastic scattering of leptons off transversely polarised nucleon targets, and it turned out to be non-zero for quarks. In this letter the evaluation of the Sivers asymmetry for gluons in the same process is presented. The analysis method is based on a Monte Carlo simulation that includes three hard processes: photon-gluon fusion, QCD Compton scattering and leading-order virtual-photon absorption process. The Sivers asymmetries of the three processes are simul…

hadron: angular distributionmuon+: polarized beamNuclear TheoryPartonmuon+ deuteron: deep inelastic scatteringhadron: transverse momentumtransverse momentum dependence01 natural sciencesCOMPASSHigh Energy Physics - ExperimentSubatomär fysikSivers functionHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)photon gluon: fusionSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]partonNuclear Experimentmedia_commonQuantum chromodynamicsPhysicsgluon: distribution functiondeep inelastic scattering: semi-inclusive reactionhigher-order: 0polarized target: transversehep-phDeep inelastic scattering; Gluon; PDF; Sivers; TMD; Nuclear and High Energy Physicslcsh:QC1-999High Energy Physics - PhenomenologySivereffect: CollinsNucleonCompton scatteringnumerical calculations: Monte Carlospin: asymmetryParticle Physics - ExperimentDeep inelastic scatteringQuarkParticle physicsNuclear and High Energy Physicsdata analysis methoddeuteron: polarized targethadron: asymmetryangular distribution: asymmetryneural networkmedia_common.quotation_subjectpolarization: longitudinalFOS: Physical sciencesAsymmetryPDFGluonNuclear physics[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]0103 physical sciencesquantum chromodynamicsSivers010306 general physicsParticle Physics - Phenomenology010308 nuclear & particles physicshep-ex160 GeV/cHigh Energy Physics::PhenomenologyTMDnucleon: spin: transverseCERN SPSDeep inelastic scatteringGluonmuon+ p: deep inelastic scatteringcorrelation[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph][ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experimentabsorptionlcsh:PhysicsLeptonexperimental results
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Search for low-energy neutrinos from astrophysical sources with Borexino

2019

We report on searches for neutrinos and antineutrinos from astrophysical sources performed with the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy. Electron antineutrinos ($\bar{\nu}_e$) are detected in an organic liquid scintillator through the inverse $\beta$-decay reaction. In the present work we set model-independent upper limits in the energy range 1.8-16.8 MeV on neutrino fluxes from unknown sources that improve our previous results, on average, by a factor 2.5. Using the same data set, we first obtain experimental constraints on the diffuse supernova $\bar{\nu}_e$ fluxes in the previously unexplored region below 8 MeV. A search for $\bar{\nu}_e$ in the solar ne…

antineutrinosPhysics - Instrumentation and Detectorssolar flaresmagnetic field: highneutrino: solarPhysics::Instrumentation and DetectorsSolar neutrinoscintillation counter: liquidelastic scatteringantineutrino/e: particle identification01 natural sciences7. Clean energyneutrino: fluxlaw.inventionHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)law[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]neutrino: supernova26.65.+t010303 astronomy & astrophysicsBorexinoElastic scatteringPhysicsSolar flareSupernova Relic Neutrinosneutrino: energy spectrumS067EB8neutrinosInstrumentation and Detectors (physics.ins-det)neutrino: magnetic momentDiffuse Supernova Neutrino Background3. Good healthSupernovaHomestakeddc:540neutrino: flavorAntineutrinoBorexinoNeutrino97.60.BwHomestake experimentFlareantineutrino/e: fluxAntineutrinos13.15.+G; 26.65.+T; 29.40.Mc; 97.60.Bw; Antineutrinos; Diffuse supernova neutrino background; Neutrinos; Solar flares; Supernova relic neutrinosAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesSupernova relic neutrinosupernova relic neutrinosNONuclear physics13.15.+gPE2_2Antineutrinos; Neutrinos; Diffuse supernova neutrino background; Supernova relic neutrinos; Solar flares0103 physical sciencesNeutrino[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Neutrinosdiffuse supernova neutrino background010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyAstronomy and Astrophysicsneutrino: particle source29.40.McGran SassoSolar flareSolar Flares13. Climate actionspectralHigh Energy Physics::Experimentexperimental results
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Sivers asymmetry extracted in SIDIS at the hard scales of the Drell-Yan process at COMPASS

2017

Proton transverse-spin azimuthal asymmetries are extracted from the COMPASS 2010 semi-inclusive hadron measurements in deep inelastic muon-nucleon scattering in those four regions of the photon virtuality $Q^2$, which correspond to the four regions of the di-muon mass $\sqrt{Q^2}$ used in the ongoing analysis of the COMPASS Drell-Yan measurements. This allows for a future direct comparison of the nucleon transverse-momentum-dependent parton distribution functions extracted from these two alternative measurements. Various two-dimensional kinematic dependences are presented for the azimuthal asymmetries induced by the Sivers transverse-momentum-dependent parton distribution function. The inte…

Drellâ YanDrell-Yan processPhotonHadronparton: distribution functionDrell-YanPartontransverse momentum dependence01 natural sciencesCOMPASSSIDISHigh Energy Physics - ExperimentSivers functionSubatomär fysikHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)CompassSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]dimension: 2Nuclear ExperimentSIDIS; Drell–Yan; Spin; Azimuthal asymmetries; Sivers; TMDsmedia_commonPhysicsQuantum chromodynamicsdeep inelastic scattering: semi-inclusive reactionpolarized target: transversephotonDrell–Yan processhep-phlcsh:QC1-999Drell–YanAzimuthal asymmetrieHigh Energy Physics - PhenomenologykinematicsSiverpolarized beam: longitudinalNucleonAzimuthal asymmetriesspin: asymmetryParticle Physics - ExperimentParticle physicsNuclear and High Energy Physicsangular distribution: asymmetrymedia_common.quotation_subjectFOS: Physical sciencesTMDsAsymmetryNuclear physicsSpin[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]Azimuthal asymmetries; Drell–Yan; SIDIS; Sivers; Spin; TMDs; Nuclear and High Energy Physics0103 physical sciencesmuon nucleon: deep inelastic scatteringquantum chromodynamicsSiversmuon nucleon: scattering010306 general physicsParticle Physics - Phenomenologynucleon: transverse momentum010308 nuclear & particles physics160 GeV/chep-exCERN SPSmuon+ p: deep inelastic scattering[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph][ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experimentlcsh:Physicsexperimental results
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Antiproton over proton and K$^-$ over K$^+$ multiplicity ratios at high $z$ in DIS

2020

The $\bar{\rm p} $ over p multiplicity ratio is measured in deep-inelastic scattering for the first time using (anti-) protons carrying a large fraction of the virtual-photon energy, $z>0.5$. The data were obtained by the COMPASS Collaboration using a 160 GeV muon beam impinging on an isoscalar $^6$LiD target. The regime of deep-inelastic scattering is ensured by requiring $Q^2$ > 1 (GeV/$c$)$^2$ for the photon virtuality and $W > 5$ GeV/$c^2$ for the invariant mass of the produced hadronic system. The range in Bjorken-$x$ is restricted to $0.01 < x < 0.40$. Protons and antiprotons are identified in the momentum range $20 ��60$ GeV/$c$. In the whole studied $z$-region, the $\…

ProtonIsoscalarHadron0 [higher-order]Deep-inelastic scatteringtarget: isoscalar01 natural sciencesCOMPASSdeep inelastic scattering [muon+ nucleon]High Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]anti-p: multiplicityInvariant massisoscalar [target]Nuclear Experiment (nucl-ex)Nuclear ExperimentHadron multiplicitiesNuclear ExperimentQuantum chromodynamicsPhysicsmultiplicity [K+]quark: fragmentation functionhigher-order: 0K+: multiplicityphotonperturbation theory: higher-orderhigher-order: 1multiplicity [anti-p]lcsh:QC1-999Bjorken [scaling]beam [muon]factorization [cross section]1 [higher-order]Particle Physics - Experimentperturbation theory [quantum chromodynamics]Nuclear and High Energy PhysicsFOS: Physical sciencesratio [multiplicity]530pQCDfragmentation function [quark]scaling: Bjorkenx-dependenceNuclear physicsQuantum chromodynamics; pQCD; Deep-inelastic scattering; Hadron multiplicities; COMPASSphase space0103 physical sciencesddc:530quantum chromodynamics: perturbation theory010306 general physicsmuon+ nucleon: deep inelastic scatteringp: multiplicityMuonmultiplicity [K-]multiplicity: ratio010308 nuclear & particles physicshep-exmuon: beamcross section: factorizationCERN SPSDeep inelastic scatteringmultiplicity: measured [charged particle]higher-order [perturbation theory]K-: multiplicityAntiprotonHigh Energy Physics::Experimentlcsh:PhysicsQuantum chromodynamicscharged particle: multiplicity: measuredhadronizationmultiplicity [p]experimental results
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Perspectives for CNO neutrino detection in Borexino

2018

International audience; Borexino measured with unprecedented accuracy the fluxes of solar neutrinos emitted at all the steps of the pp fusion chain. Still missing is the measurement of the flux of neutrinos produced in the CNO cycle. A positive measurement of the CNO neutrino flux is of fundamental importance for understanding the evolution of stars and addressing the unresolved controversy on the solar abundances. The measurement of the CNO neutrino flux in Borexino is challenging because of the low intensity of this component (CNO cycle accounts for about 1% of the energy emitted by Sun), the lack of prominent spectral features and the presence of background sources. The main background c…

CNO cycleexperimental methodsneutrino: solarPhysics::Instrumentation and DetectorsSolar neutrinoAstrophysics::High Energy Astrophysical Phenomenascintillation counter: liquidSolar neutrinosbismuth: admixtureAstrophysics[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energySolar neutrinoCNO-cycleneutrino: fluxAstrophysics::Solar and Stellar Astrophysics[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Stellar evolutionBorexinoliquid scintillatorAstrophysics::Galaxy AstrophysicsPhysicsEnergy distributiondetectorbackgroundbismuth: nuclideCNO cycleNeutrino detector13. Climate actionBorexinoExperimental methodsNeutrino
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Longitudinal double-spin asymmetry A1p and spin-dependent structure function g1p of the proton at small values of x and Q2

2018

Abstract We present a precise measurement of the proton longitudinal double-spin asymmetry A 1 p and the proton spin-dependent structure function g 1 p at photon virtualities 0.006 ( GeV / c ) 2 Q 2 1 ( GeV / c ) 2 in the Bjorken x range of 4 × 10 − 5 x 4 × 10 − 2 . The results are based on data collected by the COMPASS Collaboration at CERN using muon beam energies of 160 GeV and 200 GeV . The statistical precision is more than tenfold better than that of the previous measurement in this region. In the whole range of x , the measured values of A 1 p and g 1 p are found to be positive. It is for the first time that spin effects are found at such low values of x .

PhysicsNuclear and High Energy PhysicsMuonProton010308 nuclear & particles physicsmedia_common.quotation_subjectHadronElementary particle01 natural sciencesAsymmetryBaryonNuclear physics0103 physical sciencesHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsNucleonLeptonmedia_commonPhysics Letters B
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Multiplicities of charged pions and charged hadrons from deep-inelastic scattering of muons off an isoscalar target

2017

Multiplicities of charged pions and charged hadrons produced in deep-inelastic scattering were measured in three-dimensional bins of the Bjorken scaling variable x , the relative virtual-photon energy y and the relative hadron energy z . Data were obtained by the COMPASS Collaboration using a 160GeV muon beam and an isoscalar target ( 6 LiD). They cover the kinematic domain in the photon virtuality Q2>1(GeV/c)2 , 0.004 1(GeV/c$)^2$, $0.004 < x < 0.4$, $0.2 < z < 0.85$ and $0.1 < y < 0.7$. In addition, a leading-order pQCD analysis was performed using the pion multiplicity results to extract quark fragmentation functions.

QuarkNuclear and High Energy PhysicsPhotonIsoscalarHadronNuclear TheoryHERMEStarget: isoscalar[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]nucl-ex01 natural sciencesCOMPASSscaling: BjorkenNuclear physicsPionAstronomi astrofysik och kosmologi[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Astronomy Astrophysics and CosmologyPion multiplicitiesNuclear Physics - Experiment[ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]quantum chromodynamics: perturbation theory010306 general physicsNuclear ExperimentRICHDeep inelastic scattering; Fragmentation functions; Pion multiplicities; Nuclear and High Energy PhysicsPhysicsquark: fragmentation functionMuonpi: multiplicityhep-ex010308 nuclear & particles physicsScatteringmuon: beamhigher-order: 0Fragmentation functionphotonFragmentation functionsDeep inelastic scatteringhadron: energylcsh:QC1-999kinematicsPion multiplicitieHigh Energy Physics::ExperimentParticle Physics - Experimentlcsh:PhysicsDeep inelastic scattering
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CeSOX: An experimental test of the sterile neutrino hypothesis with Borexino

2017

International audience; The third phase of the Borexino experiment that’s referred to as SOX is devoted to test the hypothesis of the existence of one (or more) sterile neutrinos at a short baseline (~5–10m). The experimental measurement will be made with artificial sources namely with a 144Ce–144Pr antineutrino source at the first stage (CeSOX) and possibly with a 51Cr neutrino source at the second one. The fixed 144Ce–144Pr sample will be placed beneath the detector in a special pit and the initial activity will be about 100 – 150 kCi. The start of data taking is scheduled for April 2018. The article gives a short description of the preparation for the first stage and shows the expected s…

Physicsneutrino: sterile: search forHistorySterile neutrinoParticle physics010308 nuclear & particles physicsInitial activitysensitivity01 natural sciencesComputer Science ApplicationsEducationPHYSICSPhysics and Astronomy (all)cesium0103 physical sciencesOSCILLATIONS[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]ddc:530Borexinoproposed experimentNeutrino010306 general physicsantineutrino: particle sourceBorexinotalk: Moscow 2017/10/02
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Survival variations by country and age for lymphoid and myeloid malignancies in Europe 2000–2007: Results of EUROCARE-5 population-based study

2015

BACKGROUND: Significant advances in the management of patients with lymphoid and myeloid malignancies entered clinical practice in the early 2000's. The EUROCARE-5 study database provides an opportunity to assess the impact of these changes at the population level by country in Europe. We provide survival estimates for clinically relevant haematological malignancies (HM), using the International Classification of Diseases for Oncology 3, by country, gender and age in Europe. METHODS: We estimated age-standardised relative survival using the complete cohort approach for 625, 000 adult patients diagnosed in 2000-2007 and followed up to 2008. Survival information was provided by 89 participati…

OncologyCancer registry; Europe; Hodgkin lymphoma; Leukaemia; Lymphoma; Multiple myeloma; Non-Hodgkin lymphoma; Relative survivalCancer Researcheducation.field_of_studymedicine.medical_specialtyMyeloidRelative survivalbusiness.industryPopulationFollicular lymphomaPlasma cell neoplasmmedicine.diseaseLymphomaCancer registrymedicine.anatomical_structureOncologyhemic and lymphatic diseasesInternal medicineImmunologyMedicineeducationbusinessInternational Classification of Diseases for OncologyEuropean Journal of Cancer
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Session 22 other topics

1994

0106 biological sciences0303 health sciences03 medical and health sciencesMedical educationChemistrySession keyPlant ScienceSession (computer science)Horticulture01 natural sciences030304 developmental biology010606 plant biology & botanyBiologia plantarum
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Survival in patients with primary liver cancer, gallbladder and extrahepatic biliary tract cancer and pancreatic cancer in Europe 1999- 2007: Results…

2015

Abstract Background The EUROCARE study collects and analyses survival data from population-based cancer registries (CRs) in Europe in order to provide data on between-country differences in survival and time trends in survival. Methods This study analyses data on liver cancer, gallbladder and extrahepatic biliary tract cancers (“biliary tract cancers”), and pancreatic cancer diagnosed in 2000–2007 from 88 CRs in 29 countries. Relative survival (RS) was estimated overall, by region, sex, age and period of diagnosis using the complete approach. Time trends in 5-year RS over 1999–2007 were also analysed using the period approach. Results The prognosis of the studied cancers was poor. Age-stand…

Cancer Researchmedicine.medical_specialtySurvivalBiliary tract cancer; Cancer registry; Europe; Pancreatic cancer; Primary liver cancer; Survival; Time trends in survival; Oncology; Cancer ResearchPopulationSocio-culturaleTime trends in survivalGastroenterologyInternal medicinePancreatic cancermedicineeducationSurvival analysiseducation.field_of_studyRelative survivalbusiness.industryGallbladderPrimary liver cancerCancerPancreatic cancerCancer registrymedicine.diseaseCancer registryEuropeBiliary tract cancer ; Cancer registry ; Europe ; Pancreatic cancer ; Primary liver cancer ; Survival ; Time trends in survivalmedicine.anatomical_structureOncologyBiliary tract cancerLiver cancerbusiness
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Transverse extension of partons in the proton probed in the sea-quark range by measuring the DVCS cross section

2019

Physics letters / B B793, 188-194 (2019). doi:10.1016/j.physletb.2019.04.038

Photongeneralized parton distributionmuon: polarizationProtonGeneralized Parton DistributionPartonmeasured [cross section]Proton sizenucl-exmomentum transfer dependence01 natural sciencesCOMPASSSubatomär fysikp: sizeSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear ExperimentMonte CarloQuantum chromodynamicsPhysicsRange (particle radiation)photon: productionGeneralized Parton DistributionsCOMPASS; Deep inelastic scattering; Deeply virtual Compton scattering; Exclusive reactions; Generalized Parton Distributions; Proton size; Quantum chromodynamicsExclusive reactionlcsh:QC1-999transversebeam [muon]Exclusive reactionsslopesize: (transverse)Particle Physics - ExperimentDeep inelastic scatteringQuarkNuclear and High Energy Physicsexclusive reactionslope: (calculated)liquid: target [hydrogen]photon: mediation[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]530Nuclear physicshydrogen: liquid: target0103 physical sciencesddc:530Nuclear Physics - Experiment010306 general physicsbeam: polarizationhep-ex010308 nuclear & particles physicsmuon: beam160 GeV/cmuon p --> muon p photonsize [p]Compton scatteringcross section: measuredCERN SPSDeep inelastic scattering[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::ExperimentDeeply virtual Compton scatteringlcsh:PhysicsQuantum chromodynamicsexperimental results
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Corrigendum to “Transverse extension of partons in the proton probed in the sea-quark range by measuring the DVCS cross section” [Phys. Lett. B 793 (…

2019

Physics letters / B B 800, 135129 (2020). doi:10.1016/j.physletb.2019.135129

QuarkPhysicsNuclear and High Energy PhysicsRange (particle radiation)Proton010308 nuclear & particles physicsParton01 natural sciences530Nuclear physicsTransverse planeCross section (physics)0103 physical sciencesddc:530010306 general physics
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Measurement of the cross section for hard exclusive π0 muoproduction on the proton

2020

Physics letters / B B805, 135454 (2020). doi:10.1016/j.physletb.2020.135454

Quantum chromodynamics; Muoproduction; Hard exclusive meson production; Generalised Parton Distributions; COMPASSPhotongeneralized parton distributionProtonPartonmeasured [cross section]01 natural sciencesCOMPASSGeneralised Parton DistributionPhoton polarization[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear ExperimentQuantum chromodynamicsPhysicsRange (particle radiation)Large Hadron ColliderCOMPASS; Generalised Parton Distributions; Hard exclusive meson production; Muoproduction; Quantum chromodynamicslcsh:QC1-999ddc:angular dependencebeam [muon]polarization [photon]Nuclear and High Energy Physicsexclusive reactionliquid: target [hydrogen]transverse [polarization]polarization: longitudinalinterferenceHard exclusive meson productionContext (language use)Muoproductionleptoproduction [pi0]530Nuclear physicspi0: leptoproductionGeneralised Parton Distributionshydrogen: liquid: target0103 physical sciencespolarization: transverseddc:530010306 general physicslongitudinal [polarization]010308 nuclear & particles physicsmuon: beamcross section: measuredphoton: polarizationHigh Energy Physics::Experimentlcsh:PhysicsQuantum chromodynamicsexperimental results
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New analysis of ηπ tensor resonances measured at the COMPASS experiment

2018

We present a new amplitude analysis of the $\eta\pi$ $D$-wave in $\pi^- p\to \eta\pi^- p$ measured by COMPASS. Employing an analytical model based on the principles of the relativistic $S$-matrix, we find two resonances that can be identified with the $a_2(1320)$ and the excited $a_2^\prime(1700)$, and perform a comprehensive analysis of their pole positions. For the mass and width of the $a_2$ we find $M=(1307 \pm 1 \pm 6)$~MeV and $\Gamma=(112 \pm 1 \pm 8)$~MeV, and for the excited state $a_2^\prime$ we obtain $M=(1720 \pm 10 \pm 60)$~MeV and $\Gamma=(280\pm 10 \pm 70)$~MeV, respectively.

M012M311.80.EtCOMPASS01 natural sciencesHigh Energy Physics - ExperimentUNITARITYSubatomär fysikPomeronCompassexcited stateSubatomic PhysicsNuclear and high energy physics; peripheral photoproduction; physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]COMPASS experimentEXCHANGEa2(1320)Nuclear Experimenta2(1700)Quantum chromodynamicsPhysicsUnitarityPP INTERACTIONShep-phamplitude analysisMESONSlcsh:QC1-999analytic propertiesHigh Energy Physics - PhenomenologyAmplitudeS-matrixphysicsParticle Physics - ExperimentAMPLITUDE ANALYSISNuclear and High Energy PhysicsParticle physicsMeson530CONNECTIONPHYSICS14.40.Be[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]pomeron0103 physical sciencesperipheral photoproductionddc:530Tensor010306 general physicsM012W3Particle Physics - PhenomenologyPOMERONhep-ex010308 nuclear & particles physicsM162M11.55.Bq11.55.Fvmeson resonanceM162WPhysics and Astronomy450 GEV/C[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph][ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::ExperimentMATRIXlcsh:PhysicsPhysics Letters B
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The EUROCARE-5 study on cancer survival in Europe 1999-2007: Database, quality checks and statistical analysis methods

2015

Abstract Background Since 25 years the EUROCARE study monitors the survival of cancer patients in Europe through centralised collection, quality check and statistical analysis of population-based cancer registries (CRs) data. The European population covered by the study increased remarkably in the latest round. The study design and statistical methods were also changed to improve timeliness and comparability of survival estimates. To interpret the EUROCARE-5 results on adult cancer patients better here we assess the impact of these changes on data quality and on survival comparisons. Methods In EUROCARE-5 the survival differences by area were studied applying the complete cohort approach to…

Cancer ResearchSurvivalPopulationSocio-culturalePopulation-based registriesPopulation-based registrieQuality checksCancer; EUROCARE; Europe; Population-based registries; Quality checks; Survival; Oncology; Cancer ResearchMedicineeducationCancereducation.field_of_studyRelative survivalbusiness.industryPopulation sizeComparabilityCancerPercentage pointmedicine.diseaseQuality checkEuropeOncologyData qualityCohortbusinessEUROCARECancer ; EUROCARE ; Europe ; Population-based registries ; Quality checks ; SurvivalDemography
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Solar neutrino spectroscopy in Borexino

2018

International audience; In more than ten years of operation, Borexino has performed a precision measurement of the solar neutrino spectrum, resolving almost all spectral components originating from the proton-proton fusion chain. The presentation will review the results recently released for the second data taking phase 2012–2016 during which the detector excelled by its unprecedentedly low background levels. New results on the rate of pp, 7Be, pep and 8B neutrinos as well as their implications for solar neutrino oscillations and metallicity are discussed.

neutrino: solarPhysics::Instrumentation and DetectorsSolar neutrinoMetallicityNuclear physicsbackground: lowneutrino: spectrum[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Neutrino oscillationSpectroscopyBorexinoPhysicsProton–proton chain reactionpp-chainp p: fusionprecision measurementDetector* Automatic Keywords *13. Climate actionsolar neutrinosspectralHigh Energy Physics::ExperimentBorexinoneutrino: oscillationNeutrino[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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Triangle Singularity as the Origin of the a1(1420)

2021

The COMPASS Collaboration experiment recently discovered a new isovector resonancelike signal with axial-vector quantum numbers, the a 1 ( 1420 ) , decaying to f 0 ( 980 ) π . With a mass too close to and a width smaller than the axial-vector ground state a 1 ( 1260 ) , it was immediately interpreted as a new light exotic meson, similar to the X , Y , Z states in the hidden-charm sector. We show that a resonancelike signal fully matching the experimental data is produced by the decay of the a 1 ( 1260 ) resonance into K * ( → K π ) K ¯ and subsequent rescattering through a triangle singularity into the coupled f 0 ( 980 ) π channel. The amplitude for this process is calculated using a new a…

PhysicsIsovector010308 nuclear & particles physicsGeneral Physics and AstronomyQuantum number01 natural sciencesResonance (particle physics)SingularityQuantum mechanics0103 physical sciencesCOMPASS experimentExotic meson010306 general physicsGround statePseudovectorPhysical Review Letters
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Age and case mix-standardised survival for all cancer patients in Europe 1999-2007: Results of EUROCARE-5, a population-based study

2015

Background: Overall survival after cancer is frequently used when assessing a health care service’s performance as a whole. It is mainly used by the public, politicians and the media, and is often dismissed by clinicians because of the heterogeneous mix of different cancers, risk factors and treatment modalities. Here we give survival details for all cancers combined in Europe, correlating it with economic variables to suggest reasons for differences. Methods: We computed age and cancer site case- mix standardised relative survival for all cancers combined (ACRS) for 29 countries participating in the EUROCARE-5 project with data on more than 7.5 million cancer cases from 87 population-based…

Cancer ResearchPopulationPopulation-based cancer registrieAll cancerGross domestic productCase-mix by cancer siteCase mix indexHealth careMedicineeducationMETIS-311842education.field_of_studyRelative survivalbusiness.industryCancerCancer survivalPopulation-based cancer registriesmedicine.diseaseCancer survivalEastern europeanOncologyAll cancer ; Cancer survival ; Case-mix by cancer site ; EUROCARE ; Population-based cancer registriesbusinessEUROCAREIR-97293Demography
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Urinary tract cancer survival in Europe 1999-2007: Results of the population-based study EUROCARE-5

2015

Abstract Background This work presents relative survival estimates regarding urinary tract tumours among adult patients (age ⩾ 15 years) diagnosed in Europe. It reports on survival estimates of cases diagnosed in 2000–2007, and on survival time trends from 1999–2001 to 2005–2007. Methods Data on 677,340 adult urinary tract tumour patients, (429,154 cases of invasive and non-invasive bladder and 248,186 cases of invasive kidney cancers) diagnosed between 2000 and 2007 were provided by 86 population-based cancer registries from 29 European countries. The complete approach was used to estimate survival in 2000–2007; the period approach was used to estimate survival over time. Results The age-s…

Cancer Researchmedicine.medical_specialtyUrinary systemPopulationPopulation-based cancer registrieInternal medicineMedicineeducationGynecologyeducation.field_of_studyUrinary bladderRelative survivalbusiness.industryUrinary bladder tumoursCancer survival; EUROCARE; Kidney cancer; Population-based cancer registries; Urinary bladder tumoursCancerCancer survivalKidney cancermedicine.diseaseCancer survivalPopulation based studymedicine.anatomical_structureOncologybusinessKidney cancerEUROCARE
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Survival of male genital cancers (prostate, testis and penis) in Europe 1999-2007: Results from the EUROCARE-5 study

2015

Abstract Background We provide updated estimates of survival and survival trends of male genital tumours (prostate, testicular and penis cancers), in Europe and across European areas. Methods The complete approach was used to obtain relative survival estimates for patients diagnosed in 2000–2007, and followed up through 2008 in 29 countries. Data came from 87 cancer registries (CRs) for prostate tumours and from 86 CRs for testis and penis tumours. Relative survival time trends in 1999–2007 were estimated by the period approach. Data came from 49 CRs in 25 countries. Results We analysed 1,021,275 male genital cancer cases. Five-year relative survival was high and decreased with increasing a…

OncologyCancer Researchmedicine.medical_specialtySurvivalRelative survivalbusiness.industryCancer registrieIncidence (epidemiology)ProstateCancerPenile cancermedicine.diseaseProstate cancermedicine.anatomical_structureOncologyProstateInternal medicineCancer registries; Penile cancers; Prostate; Survival; Survival trends; TesticularSurvival trendmedicineTesticularPenile cancerbusinessPenisTesticular cancer
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Multiplicities of charged kaons from deep-inelastic muon scattering off an isoscalar target

2017

Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed. The results are presented in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6 LiD target. They cover the kinematic domain 1 (GeV/c)2 &lt; Q2 &lt; 60 (GeV/c)^2 in the photon virtuality, 0.004 &lt; x &lt; 0.4, 0.1 &lt; y &lt; 0.7, 0.20 &lt; z &lt; 0.85, and W &gt; 5 GeV/c^2 in the invariant mass of the hadronic system. The results from the sum of the z-integrated K+ and K- mu…

QuarkStrange quarkParticle physicsNuclear and High Energy PhysicsIsoscalarHadronFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]nucl-ex01 natural sciencesKaon multiplicitieStrange quark530High Energy Physics - ExperimentSubatomär fysikNuclear physicsHigh Energy Physics - Experiment (hep-ex)Subatomic Physics0103 physical sciencesNuclear Physics - Experimentddc:530Invariant massNuclear Experiment (nucl-ex)Nuclear Experiment010306 general physicsNuclear ExperimentPhysicsMuonhep-ex010308 nuclear & particles physicsScatteringQuark fragmentation functionDeep inelastic scatteringlcsh:QC1-999Quark fragmentation functionsDeep inelastic scattering; Kaon multiplicities; Quark fragmentation functions; Strange quark; Nuclear and High Energy PhysicsHigh Energy Physics::ExperimentParticle Physics - ExperimentKaon multiplicitieslcsh:PhysicsDeep inelastic scattering
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Final COMPASS results on the deuteron spin-dependent structure functiong1dand the Bjorken sum rule

2017

Final results are presented from the inclusive measurement of deep-inelastic polarised-muon scattering on longitudinally polarised deuterons using a 6 LiD target. The data were taken at 160 GeV beam energy and the results are shown for the kinematic range 1(GeV/c)2 4GeV/c2 in the mass of the hadronic final state. The deuteron double-spin asymmetry A1d and the deuteron longitudinal-spin structure function g1d are presented in bins of x and Q2 . Towards lowest accessible values of x , g1d decreases and becomes consistent with zero within uncertainties. The presented final g1d values together with the recently published final g1p values of COMPASS are used to again evaluate the Bjorken sum rul…

PhysicsQuarkQuantum chromodynamicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsHadronDeep inelastic scattering01 natural sciencesNuclear physicsCompass0103 physical sciencesProton spin crisisHigh Energy Physics::ExperimentSum rule in quantum mechanics010306 general physicsNucleonPhysics Letters B
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The Gaia-ESO Public Spectroscopic Survey

2012

The Gaia-ESO Public Spectroscopic Survey has begun and will obtain high quality spectroscopy of some 100000 Milky Way stars, in the field and in open clusters, down to magnitude 19, systematically covering all the major components of the Milky Way. This survey will provide the first homogeneous overview of the distributions of kinematics and chemical element abundances in the Galaxy. The motivation, organisation and implementation of the Gaia-ESO Survey are described, emphasising the complementarity with the ESA Gaia mission. Spectra from the very first observing run of the survey are presented.

spectroscopy stars kinematics abundancesSettore FIS/05 - Astronomia E AstrofisicaAstrophysics::Instrumentation and Methods for AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
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The complete genome sequence of a 45,000 year old modern human from Western Siberia

2014

Wepresent the high-quality genome sequence of a 45,000-year-old modern human male from Siberia. This individual derives from a population that lived before¿or simultaneously with¿the separation of the populations in western and eastern Eurasia and carries a similar amount of Neanderthal ancestry as present-day Eurasians. However, the genomic segments of Neanderthal ancestry are substantially longer than those observed in present-day individuals, indicating that Neanderthal gene flow into the ancestors of this individual occurred 7,000¿13,000 years before he lived. We estimate an autosomal mutation rate of 0.4 x 10-9 to 0.6x10-9 per site per year, a Y chromosomal mutation rate of 0.7x10-9 to…

Prehistòria
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First Measurement of Transverse-Spin-Dependent Azimuthal Asymmetries in the Drell-Yan Process

2017

The first measurement of transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell-Yan (DY) process is reported. We use the CERN SPS 190 GeV/$c$, $\pi^{-}$ beam and a transversely polarized ammonia target. Three azimuthal asymmetries giving access to different transverse-momentum-dependent (TMD) parton distribution functions (PDFs) are extracted using dimuon events with invariant mass between 4.3 GeV/$c^2$ and 8.5 GeV/$c^2$. The observed sign of the Sivers asymmetry is found to be consistent with the fundamental prediction of Quantum Chromodynamics (QCD) that the Sivers TMD PDFs extracted from DY have a sign opposite to the one extracted from semi-inclusive deep-inelastic sc…

Drell-Yan process550ComputerSystemsOrganization_COMPUTERSYSTEMIMPLEMENTATIONNuclear TheoryGeneral Physics and Astronomyparton: distribution functiontransverse momentum dependence01 natural sciencesCOMPASSHigh Energy Physics - ExperimentSivers functionHigh Energy Physics - Experiment (hep-ex)semi-inclusive reaction [deep inelastic scattering]High Energy Physics - Phenomenology (hep-ph)ddc:550[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear ExperimenttransversityPhysicsQuantum chromodynamics(muon+ muon-) [mass spectrum]Large Hadron Colliderdeep inelastic scattering: semi-inclusive reactionpolarized target: transverse190 GeV/ctransverse [polarized target]nucleonDrell–Yan processhep-phdimuon: mass spectrumAzimuthHigh Energy Physics - PhenomenologyTransverse planeasymmetry [angular distribution]pi- nucleus: scatteringmass spectrum [dimuon]distribution function [parton]Nucleonspin: asymmetryParticle Physics - ExperimentParticle physicsangular distribution: asymmetryscattering [pi- nucleus]ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONFOS: Physical sciencesComputerApplications_COMPUTERSINOTHERSYSTEMSAccelerator Physics and InstrumentationGeneralLiterature_MISCELLANEOUSNuclear physicsPhysics and Astronomy (all)[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]0103 physical sciencesquantum chromodynamicsuniversality010306 general physicsParticle Physics - Phenomenology010308 nuclear & particles physicshep-exHigh Energy Physics::PhenomenologyAcceleratorfysik och instrumenteringCERN SPSmass spectrum: (muon+ muon-)ComputingMethodologies_PATTERNRECOGNITION[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Physics::Accelerator Physics[ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experimentasymmetry [spin]experimental results
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Improved measurement of $^8$B solar neutrinos with $1.5  kt·y$ of Borexino exposure

2017

We report on an improved measurement of the $^8$B solar neutrino interaction rate with the Borexino experiment at the Laboratori Nazionali del Gran Sasso. Neutrinos are detected via their elastic scattering on electrons in a large volume of liquid scintillator. The measured rate of scattered electrons above 3 MeV of energy is $0.223\substack{+0.015 \\ -0.016}\,(stat)\,\substack{+0.006 \\ -0.006}\,(syst)$ cpd/100 t, which corresponds to an observed solar neutrino flux assuming no neutrino flavor conversion of $\Phi\substack{\rm ES \\ ^8\rm B}=2.57\substack{+0.17 \\ -0.18}(stat)\substack{+0.07\\ -0.07}(syst)\times$10$^6$ cm$^{-2}\,$s$^{-1}$. This measurement exploits the active volume of the …

model: solarneutrino: solarPhysics::Instrumentation and Detectorsscintillation counter: liquidFOS: Physical sciencesneutrino: fluxHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)cosmic raysS067HPT[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Experiments in gravityNuclear ExperimentSolar and Stellar Astrophysics (astro-ph.SR)neutrino: interactionMSW effectcosmic radiation: energy spectrumscintillation counter: targetS067SESneutrino electron: elastic scatteringGran SassoAstrophysics - Solar and Stellar Astrophysicsneutrino: flavorHigh Energy Physics::ExperimentBorexino[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]cosmologyboron: semileptonic decayexperimental results
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Transverse-momentum-dependent Multiplicities of Charged Hadrons in Muon-Deuteron Deep Inelastic Scattering

2017

A semi-inclusive measurement of charged hadron multiplicities in deep inelastic muon scattering off an isoscalar target was performed using data collected by the COMPASS Collaboration at CERN. The following kinematic domain is covered by the data: photon virtuality $Q^{2}&gt;1$ (GeV/$c$)$^2$, invariant mass of the hadronic system $W &gt; 5$ GeV/$c^2$, Bjorken scaling variable in the range $0.003 &lt; x &lt; 0.4$, fraction of the virtual photon energy carried by the hadron in the range $0.2 &lt; z &lt; 0.8$, square of the hadron transverse momentum with respect to the virtual photon direction in the range 0.02 (GeV/$c)^2 &lt; P_{\rm{hT}}^{2} &lt; 3$ (GeV/$c$)$^2$. The multiplicities are pres…

CERN LabComputerSystemsOrganization_COMPUTERSYSTEMIMPLEMENTATIONMULTIPLICITIESdimension: 3PT DEPENDENTComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONFOS: Physical sciencesComputerApplications_COMPUTERSINOTHERSYSTEMStarget: isoscalarmuon deuteron: deep inelastic scattering[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]nucl-extransverse momentum dependencehadron: transverse momentumSIDISCOMPASSGeneralLiterature_MISCELLANEOUSHigh Energy Physics - Experimentscaling: BjorkenSubatomär fysikcharged particle: multiplicityHigh Energy Physics - Experiment (hep-ex)[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]mass: hadronicSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Physics - Experiment[ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]Nuclear Experiment (nucl-ex)quantum chromodynamics: perturbation theoryNuclear ExperimentNuclear ExperimentDIShep-exhadron: multiplicityeffect: nonperturbativeperturbation theory: higher-orderCERN SPSphoton: energysemi-inclusive reactionComputingMethodologies_PATTERNRECOGNITIONkinematicsDIS; SIDIS; MULTIPLICITIES; PT DEPENDENTHigh Energy Physics::ExperimentParticle Physics - Experimentexperimental resultsphoton: virtual
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Simultaneous precision spectroscopy of pp, Be7, and pep solar neutrinos with Borexino Phase-II

2019

We present the simultaneous measurement of the interaction rates Rpp, RBe, Rpep of pp, Be7, and pep solar neutrinos performed with a global fit to the Borexino data in an extended energy range (0.19–2.93) MeV with particular attention to details of the analysis methods. This result was obtained by analyzing 1291.51 days of Borexino Phase-II data, collected after an extensive scintillator purification campaign. Using counts per day (cpd)/100 ton as unit, we find Rpp=134±10(stat)−10+6(sys), RBe=48.3±1.1(stat)−0.7+0.4(sys); and RpepHZ=2.43±0.36(stat)−0.22+0.15(sys) assuming the interaction rate RCNO of CNO-cycle (Carbon, Nitrogen, Oxigen) solar neutrinos according to the prediction of the high…

Physical Review
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Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

2021

Full list of authors: Acharyya, A.; Adam, R.; Adams, C.; Agudo, I.; Aguirre-Santaella, A.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Alves Batista, R.; Amati, L.; Ambrosi, G.; Angüner, E. O.; Antonelli, L. A.; Aramo, C.; Araudo, A.; Armstrong, T.; Arqueros, F.; Asano, K.; Ascasíbar, Y. Ashley, M.; Balazs, C.; Ballester, O.; Baquero Larriva, A.; Barbosa Martins, V.; Barkov, M.; Barres de Almeida, U.; Barrio, J. A.; Bastieri, D.; Becerra, J.; Beck, G.; Becker Tjus, J.; Benbow, W.; Benito, M.; Berge, D.; Bernardini, E.; Bernlöhr, K.; Berti, A.; Bertucci, B.; Beshley, V.; Biasuzzi, B.; Biland, A.; Bissaldi, E.; Biteau, J.; Blanch, O.; Blazek, J.; Bocchino, F.; Boisson, C.; Bonneau Arbe…

Cherenkov Telescope ArrayMATÉRIA ESCURAscale: TeVAstronomyatmosphere [Cherenkov counter]dark matter experimentDark matter theoryenergy resolutionGamma ray experimentsParticleAstrophysicscosmic background radiation01 natural sciences7. Clean energyHigh Energy Physics - Phenomenology (hep-ph)benchmarkWIMPHESSenergy: fluxTeV [scale]relativistic [charged particle]gamma ray experimentMAGIC (telescope)Monte CarloEvent reconstructionPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Contractionspatial distributiontrack data analysisPhysicsdensity [dark matter]ClumpyAstrophysics::Instrumentation and Methods for AstrophysicsimagingHigh Energy Physics - Phenomenologydark matter experiments; dark matter theory; gamma ray experiments; galaxy morphologyDark matter experimentsFísica nuclearVERITASAstrophysics - High Energy Astrophysical PhenomenaSimulationsnoiseWIMPAstrophysics::High Energy Astrophysical PhenomenaDark mattersatelliteCosmic background radiationFOS: Physical sciencesAnnihilationdark matter: densityAstrophysics::Cosmology and Extragalactic AstrophysicsCherenkov counter: atmosphereheavy [dark matter]530annihilation [dark matter]GLASTDark matter experiments; Dark matter theory; Galaxy morphology; Gamma ray experimentscosmic radiation [p]0103 physical sciencesCherenkov [radiation]Candidatesddc:530AGNCherenkov radiationRadiative Processesthermal [cross section]010308 nuclear & particles physicsFísicadark matter: annihilationGamma-Ray SignalsCherenkov Telescope Array ; dark matter ; Galactic Center ; TeV gamma-ray astronomyAstronomy and AstrophysicsMassCherenkov Telescope Arrayradiation: CherenkovsensitivityMAGICGalaxyAstronomíadark matter: heavygamma rayp: cosmic radiation[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]correlationcharged particle: relativisticflux [energy]Galaxy morphology/dk/atira/pure/subjectarea/asjc/3100/3103galaxysupersymmetry[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]cross section: thermal
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Neutrino Flavor Sensitivity of Large Liquid Scintillator Detectors

2015

Scintillator detectors are known for their good light yield, energy resolution, timing characteristics and pulse shape discrimination capabilities. These features make the next-generation liquid scintillation detector LENA[1] (Low Energy Neutrino Astronomy) the optimal choice for a wide range of astro-particle topics including supernova-, solar-, and geo neutrinos. In addition to the excellent calorimetric and timing properties, scintillartor detectors (LSDs) are also capable of topology reconstruction sufficient to discriminate with adequate efficiency between electron and muon neutrino induced charge current events and neutral current events in the GeV energy range. This feature makes LEN…

neutrino mass hierarchyPhysics::Instrumentation and Detectorsneutrino physicsliquid scintillation detectorsHigh Energy Physics::Experiment
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CCDC 250275: Experimental Crystal Structure Determination

2005

Related Article: M.Meyer, L.Fremond, E.Espinosa, R.Guilard, Zhongping Ou, K.M.Kadish|2004|Inorg.Chem.|43|5572|doi:10.1021/ic049518k

Space GroupCrystallographyCrystal System(19121822-Penta-azatricyclo(7.6.6.1^37^)docosa-357(22)-triene-1319-dione)-copper(ii) perchlorate monohydrateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 171781: Experimental Crystal Structure Determination

2002

Related Article: E.Espinosa, M.Meyer, D.Berard, R.Guilard|2002|Acta Crystallogr.,Sect.C:Cryst.Struct.Commun.|58|m119|doi:10.1107/S0108270101021060

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates((14811-tetraazacyclotetradeca-14811-tetrayl)tetraacetamide)-copper(ii) sulfate hydrate
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CCDC 250274: Experimental Crystal Structure Determination

2005

Related Article: M.Meyer, L.Fremond, E.Espinosa, R.Guilard, Zhongping Ou, K.M.Kadish|2004|Inorg.Chem.|43|5572|doi:10.1021/ic049518k

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(19121822-Penta-azatricyclo(7.6.6.1^37^)docosa-357(22)-triene-1319-dione)-copper(ii) tetrahydrateExperimental 3D Coordinates
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CCDC 291438: Experimental Crystal Structure Determination

2006

Related Article: F.Cuenot, M.Meyer, E.Espinosa, R.Guilard|2005|Inorg.Chem.|44|7895|doi:10.1021/ic0508019

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates14811-tetrakis(Carbamoylmethyl)-14811-tetra-azacyclotetradecane dihydrate
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CCDC 656320: Experimental Crystal Structure Determination

2008

Related Article: F.Cuenot, M.Meyer, E.Espinosa, A.Bucaille, R.Burgat, R.Guilard, C.Marichal-Westrich|2008|Eur.J.Inorg.Chem.||267|doi:10.1002/ejic.200700819

Space GroupCrystallography(14710-Tetraazacyclodocecane-14710-tetraacetamido)-lead(ii) dinitrate hydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 233399: Experimental Crystal Structure Determination

2006

Related Article: M.Meyer, L.Fremond, E.Espinosa, S.Brandes, G.Y.Vollmer, R.Guilard|2005|New J.Chem.|29|1121|doi:10.1039/b508076b

Space GroupCrystallographyCrystal SystemCrystal Structure19121624273340-Octa-aza-pentacyclo(22.6.6.6^916^.1^37^.1^1822^)tetratetraconta-3(44)4618(43)1921-hexaene-13283439-tetrone tetrahydrateCell ParametersExperimental 3D Coordinates
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CCDC 641477: Experimental Crystal Structure Determination

2010

Related Article: U.Scholten, C.Diserens, H.Stoeckli-Evans, K.Bernauer, M.Meyer, L.Stuppfler, D.Lucas|2009|Inorg.Chem.|48|10942|doi:10.1021/ic900330q

Space GroupCrystallographyclambda-Aqua-(NN'-(pyridine-26-diyl)bis(methylene)bis((S)-proline))-chromium(iii) perchlorate hydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 291437: Experimental Crystal Structure Determination

2006

Related Article: F.Cuenot, M.Meyer, E.Espinosa, R.Guilard|2005|Inorg.Chem.|44|7895|doi:10.1021/ic0508019

14811-tetrakis(Carbamoylmethyl)-411-diaza-18-diazoniacyclotetradecane dinitrate dihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 656319: Experimental Crystal Structure Determination

2008

Related Article: F.Cuenot, M.Meyer, E.Espinosa, A.Bucaille, R.Burgat, R.Guilard, C.Marichal-Westrich|2008|Eur.J.Inorg.Chem.||267|doi:10.1002/ejic.200700819

14710-Tetraazacyclodocecane-14710-tetraacetamideSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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