0000000000926944

AUTHOR

E. Fuchey

showing 63 related works from this author

Comparing proton momentum distributions in A = 2 and 3 nuclei via 2H 3H and 3He (e,e′p) measurements

2019

We report the first measurement of the $(e,e'p)$ reaction cross-section ratios for Helium-3 ($^3$He), Tritium ($^3$H), and Deuterium ($d$). The measurement covered a missing momentum range of $40 \le p_{miss} \le 550$ MeV$/c$, at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (GeV$/c$)$^2$) and $x_B>1$, which minimized contributions from non quasi-elastic (QE) reaction mechanisms. The data is compared with plane-wave impulse approximation (PWIA) calculations using realistic spectral functions and momentum distributions. The measured and PWIA-calculated cross-section ratios for $^3$He$/d$ and $^3$H$/d$ extend to just above the typical nucleon Fermi-momentum ($k_F \approx 250$ …

production [pi]Nuclear and High Energy Physicsdata analysis methodPhotonNuclear TheoryNuclear TheoryinterferenceFOS: Physical sciencesElectronImpulse (physics)Inelastic scattering01 natural sciencesxperimental results | Jefferson Lab | electron p: scattering | parity: violation | inelastic scattering | structure function | interference | photon | Z0 | pi: production | spin: asymmetry | data analysis methodNuclear Theory (nucl-th)structure function0103 physical sciencesZ0Nuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentNuclear ExperimentPhysics010308 nuclear & particles physicsMomentum transferphotoninelastic scatteringscattering [electron p]Eikonal approximationNATURAL SCIENCES. Physics.lcsh:QC1-999PRIRODNE ZNANOSTI. Fizika.Deuteriumxperimental resultsHigh Energy Physics::Experimentviolation [parity]Atomic physicsNucleonasymmetry [spin]lcsh:PhysicsJefferson LabPhysics Letters B
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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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Accurate Determination of the Neutron Skin Thickness of Pb208 through Parity-Violation in Electron Scattering

2021

We report a precision measurement of the parity-violating asymmetry A_{PV} in the elastic scattering of longitudinally polarized electrons from ^{208}Pb. We measure A_{PV}=550±16(stat)±8(syst) parts per billion, leading to an extraction of the neutral weak form factor F_{W}(Q^{2}=0.00616  GeV^{2})=0.368±0.013. Combined with our previous measurement, the extracted neutron skin thickness is R_{n}-R_{p}=0.283±0.071  fm. The result also yields the first significant direct measurement of the interior weak density of ^{208}Pb: ρ_{W}^{0}=-0.0796±0.0036(exp)±0.0013(theo)  fm^{-3} leading to the interior baryon density ρ_{b}^{0}=0.1480±0.0036(exp)±0.0013(theo)  fm^{-3}. The measurement accurately co…

Elastic scatteringPhysicsEquation of state (cosmology)media_common.quotation_subjectForm factor (quantum field theory)General Physics and Astronomy01 natural sciencesAsymmetry0103 physical sciencesSaturation (graph theory)NeutronAtomic physics010306 general physicsElectron scatteringEnergy (signal processing)media_commonPhysical Review Letters
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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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Interplay among transversity induced asymmetries in hadron leptoproduction

2015

In the fragmentation of a transversely polarized quark several left-right asymmetries are possible for the hadrons in the jet. When only one unpolarized hadron is selected, it exhibits an azimuthal modulation known as Collins effect. When a pair of oppositely charged hadrons is observed, three asymmetries can be considered, a di-hadron asymmetry and two single hadron asymmetries. In lepton deep inelastic scattering on transversely polarized nucleons all these asymmetries are coupled with the transversity distribution. From the high statistics COMPASS data on oppositely charged hadron-pair production we have investigated for the first time the dependence of these three asymmetries on the dif…

QuarkParticle physicsNuclear and High Energy Physicsmedia_common.quotation_subjectHadronNuclear TheoryFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesAsymmetryHigh Energy Physics - ExperimentNuclear physicsSubatomär fysikHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)Compass0103 physical sciencesSubatomic Physics010306 general physicsNuclear Experimentmedia_commonPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyDeep inelastic scatteringlcsh:QC1-999High Energy Physics - PhenomenologyAngular dependenceHigh Energy Physics::ExperimentNucleonlcsh:PhysicsParticle Physics - ExperimentLepton
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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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The spin structure functiong1pof the proton and a test of the Bjorken sum rule

2016

New results for the double spin asymmetry A(1)(p) and the proton longitudinal spin structure function g(1)(p) are presented. They were obtained by the COMPASS Collaboration using polarised 200 GeV muons scattered off a longitudinally polarised NH3 target. The data were collected in 2011 and complement those recorded in 2007 at 160 GeV, in particular at lower values of x. They improve the statistical precision of g(1)(p)(x) by about a factor of two in the region x less than or similar to 0.02. A next-to-leading order QCD fit to the g(1) world data is performed. It leads to a new determination of the quark spin contribution to the nucleon spin, Delta Sigma, ranging from 0.26 to 0.36, and to a…

PhysicsQuantum chromodynamicsNuclear and High Energy PhysicsParticle physicsMuonProton010308 nuclear & particles physicsDeep inelastic scattering01 natural sciencesHelicityNuclear physics0103 physical sciencesHigh Energy Physics::ExperimentSum rule in quantum mechanics010306 general physicsNucleonSpin-½Physics Letters B
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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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Rosenbluth Separation of the π^{0} Electroproduction Cross Section.

2016

We present deeply virtual $\pi^0$ electroproduction cross-section measurements at $x_B$=0.36 and three different $Q^2$--values ranging from 1.5 to 2 GeV$^2$, obtained from experiment E07-007 that ran in the Hall A at Jefferson Lab. The Rosenbluth technique was used to separate the longitudinal and transverse responses. Results demonstrate that the cross section is dominated by its transverse component, and thus is far from the asymptotic limit predicted by perturbative Quantum Chromodynamics. An indication of a non-zero longitudinal contribution is provided by the interference term $\sigma_{LT}$ also measured. Results are compared with several models based on the leading twist approach of G…

Particle physicslongitudinalinterferenceGeneral Physics and Astronomyparton: distribution functionPartonhard exclusive electroproduction; mesons[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesHigh Energy Physics - ExperimentNuclear physicspi: distribution amplitudegeneralized parton distribution: transversityPiondeep inelastic scattering0103 physical scienceshard exclusive electroproduction[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]quantum chromodynamics: perturbation theory010306 general physicsNuclear ExperimentNuclear ExperimentmesonsQuantum chromodynamicsPhysics010308 nuclear & particles physicsscattering amplitudemomentum transferSigmanucleon: generalized parton distributionScattering amplitudetransverseDistribution (mathematics)Amplitudepi0: electroproductiontwistHigh Energy Physics::ExperimentNucleonchannel cross section: measuredJefferson Labexperimental resultsPhysical review letters
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A glimpse of gluons through deeply virtual compton scattering on the proton

2017

The internal structure of nucleons (protons and neutrons) remains one of the greatest outstanding problems in modern nuclear physics. By scattering high-energy electrons off a proton we are able to resolve its fundamental constituents and probe their momenta and positions. Here we investigate the dynamics of quarks and gluons inside nucleons using deeply virtual Compton scattering (DVCS)—a highly virtual photon scatters off the proton, which subsequently radiates a photon. DVCS interferes with the Bethe-Heitler (BH) process, where the photon is emitted by the electron rather than the proton. We report herein the full determination of the BH-DVCS interference by exploiting the distinct energ…

Genetics and Molecular Biology (all)PhotonProtonHigh Energy Physics::LatticeNuclear TheoryGeneral Physics and AstronomyVirtual particleparton: distribution functionBiochemistry01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]p: structure functionNuclear Experiment (nucl-ex)[ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]lcsh:ScienceNuclear ExperimentNuclear ExperimentPhysicsenergy: highMultidisciplinarystrong interactionChemistry (all)QCompton scattering: form factorphoton: energy spectrumHigh Energy Physics - Phenomenologyconfinementelectron p --> electron p photonchannel cross section: measuredQuarkelectron p: deep inelastic scatteringParticle physicselectron: polarized beamScienceStrong interactionFOS: Physical sciencesBethe-Heitler[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]ArticleGeneral Biochemistry Genetics and Molecular Biologyenergy dependencequarkPhysics and Astronomy (all)[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]photon: emissiondeeply virtual Compton scattering0103 physical sciencesstructure010306 general physicsquantum mechanics: interference010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyCompton scatteringGeneral ChemistrygluonsensitivityGluon[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Quark–gluon plasmalcsh:Q[ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::ExperimentholographyChemistry (all); Biochemistry Genetics and Molecular Biology (all); Physics and Astronomy (all)photon: virtualexperimental results
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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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New Measurements of the Transverse Beam Asymmetry for Elastic Electron Scattering from Selected Nuclei

2012

We have measured the beam-normal single-spin asymmetry $A_n$ in the elastic scattering of 1-3 GeV transversely polarized electrons from $^1$H and for the first time from $^4$He, $^{12}$C, and $^{208}$Pb. For $^1$H, $^4$He and $^{12}$C, the measurements are in agreement with calculations that relate $A_n$ to the imaginary part of the two-photon exchange amplitude including inelastic intermediate states. Surprisingly, the $^{208}$Pb result is significantly smaller than the corresponding prediction using the same formalism. These results suggest that a systematic set of new $A_n$ measurements might emerge as a new and sensitive probe of the structure of heavy nuclei.

Elastic scatteringPhysics010308 nuclear & particles physicsScatteringmedia_common.quotation_subjectFOS: Physical sciencesGeneral Physics and AstronomyElastic electronchemistry.chemical_elementElectron[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesAsymmetryAmplitudechemistryExcited state0103 physical sciencesNuclear Experiment (nucl-ex)Atomic physics010306 general physicsNuclear ExperimentNuclear ExperimentHeliummedia_common
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Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high $p_T$

2015

We measured the longitudinal double spin asymmetries $A_{LL}$ for single hadron muo-production off protons and deuterons at photon virtuality $Q^2$ < 1(GeV/$\it c$)$^2$ for transverse hadron momenta $p_T$ in the range 0.7 GeV/$\it c$ to 4 GeV/$\it c$ . They were determined using COMPASS data taken with a polarised muon beam of 160 GeV/$\it c$ or 200 GeV/$\it c$ impinging on polarised $\mathrm{{}^6LiD}$ or $\mathrm{NH_3}$ targets. The experimental asymmetries are compared to next-to-leading order pQCD calculations, and are sensitive to the gluon polarisation $\Delta G$ inside the nucleon in the range of the nucleon momentum fraction carried by gluons $0.05 < x_g < 0.2$. We measured the longi…

Nuclear and High Energy PhysicsParticle physicsPhotonHigh pTHadronNuclear TheoryCOMPASS; Deep inelastic scattering; Double spin asymmetry; High pT; δG; Nuclear and High Energy PhysicsFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Double spin asymmetryLambdaCOMPASS01 natural sciencesHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)0103 physical sciencesδG010306 general physicsNuclear ExperimentPhysicsMuon010308 nuclear & particles physicsDeep inelastic scatteringlcsh:QC1-999GluonHigh Energy Physics - PhenomenologyDeuteriumHigh Energy Physics::ExperimentNucleonlcsh:PhysicsParticle Physics - ExperimentDeep inelastic scattering
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Deeply virtual compton scattering off the neutron.

2007

The present experiment exploits the interference between the Deeply Virtual Compton Scattering (DVCS) and the Bethe-Heitler processes to extract the imaginary part of DVCS amplitudes on the neutron and on the deuteron from the helicity-dependent D$({\vec e},e'\gamma)X$ cross section measured at $Q^2$=1.9 GeV$^2$ and $x_B$=0.36. We extract a linear combination of generalized parton distributions (GPDs) particularly sensitive to $E_q$, the least constrained GPD. A model dependent constraint on the contribution of the up and down quarks to the nucleon spin is deduced.

QuarkPhysicsParticle physicsPhoton010308 nuclear & particles physicsScatteringHigh Energy Physics::PhenomenologyNuclear TheoryCompton scatteringFOS: Physical sciencesGeneral Physics and AstronomyVirtual particleParton[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesNuclear physicsIsospin0103 physical sciences25.30.-c 13.60.Fz 13.85.Hd 14.20.DhHigh Energy Physics::ExperimentNuclear Experiment (nucl-ex)010306 general physicsNucleonNuclear ExperimentNuclear ExperimentPhysical review letters
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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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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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Rosenbluth separation of the $\pi^0$ Electroproduction Cross Section off the Neutron

2017

We report the first longitudinal/transverse separation of the deeply virtual exclusive $\pi^0$ electroproduction cross section off the neutron and coherent deuteron. The corresponding four structure functions $d\sigma_L/dt$, $d\sigma_T/dt$, $d\sigma_{LT}/dt$ and $d\sigma_{TT}/dt$ are extracted as a function of the momentum transfer to the recoil system at $Q^2$=1.75 GeV$^2$ and $x_B$=0.36. The $ed \to ed\pi^0$ cross sections are found compatible with the small values expected from theoretical models. The $en \to en\pi^0$ cross sections show a dominance from the response to transversely polarized photons, and are in good agreement with calculations based on the transversity GPDs of the nucle…

longitudinalNuclear Theoryn: structure function[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]momentum transfer dependenceelectron n: scatteringHigh Energy Physics - Experimentgeneralized parton distribution: transversity[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]hard exclusive electroproductionrecoil[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]polarization: transverse[ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]Nuclear ExperimentNuclear Experimentmesonsflavorgeneralized parton distributionsscatteringgeneralized parton distributions; hard exclusive electroproduction; mesons; scatteringdeuteron: structure functionelectron deuteron --> electron deuteron pi0electron deuteron: deep inelastic scatteringnucleon: generalized parton distributionphoton: polarizationcoherencepi0: electroproductionHigh Energy Physics::Experimentexperimental 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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"Table 28" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 36" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 17" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 40" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 39" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 9" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 22" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 31" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 34" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 33" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 6" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 11" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 37" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 29" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 1" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 21" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 25" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 2" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 32" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 5" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 16" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 24" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 23" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 14" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 26" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 20" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 8" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 10" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 13" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 27" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 38" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 35" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 15" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 30" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 19" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 12" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 4" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 3" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 18" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity dependent cross sectionExclusive
researchProduct

"Table 7" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --&gt; E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct