Search results for "meson"

showing 10 items of 1548 documents

"Table 5" of "$\rm \Lambda_{c}^{+}$ production and baryon-to-meson ratios in pp and p-Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV at the LHC"

2021

The $\Lambda_{\rm {c}}^{+}$/${\rm D}^{0}$ ratio as a function of $p_{\rm {T}}$ measured in p-Pb collisions at $\sqrt{s_{\rm {NN}}} = 5.02$ TeV in the rapidity interval $ -0.96\lt y \lt 0.04$.

5020.0Lc/D0P PB --> D0 XP PB --> Lc Xbaryon-to-meson ratio
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"Table 4" of "$\rm \Lambda_{c}^{+}$ production and baryon-to-meson ratios in pp and p-Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV at the LHC"

2021

The $\Lambda_{\rm {c}}^{+}$/${\rm D}^{0}$ ratio as a function of $p_{\rm {T}}$ measured in pp collisions at $\sqrt{s} = 5.02$ TeV in the rapidity interval $|y|<0.5$.

5020.0P P --> D0 XLc/D0High Energy Physics::PhenomenologyP P --> Lc XNuclear Experimentbaryon-to-meson ratio
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"Table 1.4" of "Probing the effects of strong electromagnetic fields with charge-dependent directed flow in Pb-Pb collisions at the LHC"

2020

Directed flow D0 meson 10-40%

5023.0High Energy Physics::LatticeHigh Energy Physics::PhenomenologyNuclear TheoryHigh Energy Physics::ExperimentD0 mesonDirected flowNuclear Experiment
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"Table 1.5" of "Probing the effects of strong electromagnetic fields with charge-dependent directed flow in Pb-Pb collisions at the LHC"

2020

Directed flow D0-bar meson 10-40%

5023.0High Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyD0-bar mesonHigh Energy Physics::ExperimentDirected flowNuclear Experiment
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Search for a common baryon source in high-multiplicity pp collisions at the LHC

2020

Physics letters / B B811, 135849 (2020). doi:10.1016/j.physletb.2020.135849

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]HadronHadron - hadron reactionHEAVY-ION COLLISIONSHigh multiplicityhiukkasfysiikkanucl-exdecay [resonance]01 natural sciencesHigh Energy Physics - ExperimentExperimentHigh Energy Physics - Experiment (hep-ex)hadron–hadron interactions LHC ALICEBarions; strong interaction; LHCALICEstrong resonance decayIonic Collisionsscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentBarionsPION INTERFEROMETRYhadron-hadron scatteringPhysicsLarge Hadron ColliderMesonsHadron - hadron reactionsmass: transversestrong interactionPhysicsbaryon correlations ; invariant radius ; strong hadron–hadron interactions ; strong resonance decayVDP::Kjerne- og elementærpartikkelfysikk: 431RadiusAU+AUInvariant (physics)lcsh:QC1-999quark gluon plasmaPRIRODNE ZNANOSTI. Fizika.HEAVY-ION COLLISIONS; PION INTERFEROMETRY; SIGMA(0) PRODUCTION; AU+AU; COLLISIONS; FEMTOSCOPY; SYSTEMS; PB:Nuclear and elementary particle physics: 431 [VDP]CERN LHC CollVDP::Nuclear and elementary particle physics: 431Transverse massLHCPBParticle Physics - Experimentbaryon correlationsCOLLISIONSNuclear and High Energy Physicsp p: scatteringHigh Energy Physics; ExperimentcollectiveFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]530114 Physical sciencesNuclear physicsHadron - hadron reactions; LHCbaryon baryon: correlationSYSTEMSresonance: decay0103 physical sciencesfemtoscopyddc:530Nuclear Physics - ExperimentHigh Energy Physics010306 general physicshadron hadron: interactioninteraction [hadron hadron]010308 nuclear & particles physicshep-exhadron-hadron scattering ALICE experiment femtoscopySIGMA(0) PRODUCTIONHigh Energy Physics::PhenomenologyALICE experimentcorrelation [baryon baryon]Kaonsstrong hadron–hadron interactionsNATURAL SCIENCES. Physics.invariant radiusBaryonKaons; Ionic Collisions; Mesonstransverse [mass]Antiproton13000 GeV-cms/nucleonHigh Energy Physics::Experimentlcsh:Physicsexperimental results
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Particle identification in ALICE: a Bayesian approach

2016

We present a Bayesian approach to particle identification (PID) within the ALICE experiment. The aim is to more effectively combine the particle identification capabilities of its various detectors. After a brief explanation of the adopted methodology and formalism, the performance of the Bayesian PID approach for charged pions, kaons and protons in the central barrel of ALICE is studied. PID is performed via measurements of specific energy loss ($\mathrm{d}E/\mathrm{d}x$) and time-of-flight. PID efficiencies and misidentification probabilities are extracted and compared with Monte Carlo simulations using high-purity samples of identified particles in the decay channels ${\rm K}^0_S \righta…

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]Monte Carlo methodGeneral Physics and AstronomyPID controllerPP01 natural sciencesParticle identificationHigh Energy Physics - ExperimentParticle identificationHigh Energy Physics - Experiment (hep-ex)ALICEHadron-Hadron scattering (experiments)Heavy-ion collisionNuclear and High Energy Physics Hadron-Hadron scattering (experiments) Heavy Ion Experiments Heavy-ion collision Quark gluon plasma Particle identification Bayesianscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Experiment (nucl-ex)Detectors and Experimental TechniquesNuclear ExperimentNuclear ExperimentPhysicsefficiency [particle identification]PB COLLISIONSVDP::Kjerne- og elementærpartikkelfysikk: 431Monte Carlo [numerical calculations]PB COLLISIONS PP PERFORMANCE.:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]PRIRODNE ZNANOSTI. Fizika.Time of flight:Nuclear and elementary particle physics: 431 [VDP]VDP::Nuclear and elementary particle physics: 431performancemomentum spectrum [charged particle]Nuclear and High Energy PhysicsParticle physicsMesoneducationBayesian probabilityFOS: Physical sciencesQuark gluon plasma[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]114 Physical sciencesBayesianNuclear physicsPhysics and Astronomy (all)PionHeavy Ion Experiments0103 physical sciencesddc:530010306 general physics010308 nuclear & particles physicsBayesian approach:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]ALICE experimentPERFORMANCEparticle identification ; Bayesian approachNATURAL SCIENCES. Physics.PB COLLISIONS; TEV; PP; PERFORMANCEPhysics - Data Analysis Statistics and ProbabilityQuark–gluon plasmaBayesian [statistics]TEVHigh Energy Physics::Experimentparticle identificationData Analysis Statistics and Probability (physics.data-an)
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Calibration of the photon spectrometer PHOS of the ALICE experiment

2019

Journal of Instrumentation 14(05), P05025 - P05025 (2019). doi:10.1088/1748-0221/14/05/P05025

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]Physics - Instrumentation and DetectorsPhotonProtonelectromagnetic [calorimeter]Detector alignment and calibration methods (lasers sources particle-beams)particlebeams)energy calibration ; calorimeter electromagnetic ; alignment geometrical ; photon spectrometer ; ALICE ; mass resolution ; performancehiukkasfysiikka01 natural sciencesalignment geometrical030218 nuclear medicine & medical imaging0302 clinical medicineALICEDetectors and Experimental TechniquesNuclear ExperimentInstrumentationphoton spectrometerphysics.ins-detMathematical PhysicsPhysicscalorimetersPhysicsDetectorVDP::Kjerne- og elementærpartikkelfysikk: 431Instrumentation and Detectors (physics.ins-det)particle-beams):Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]ddc:Calorimetercalibration [energy]PRIRODNE ZNANOSTI. Fizika.:Nuclear and elementary particle physics: 431 [VDP]VDP::Nuclear and elementary particle physics: 431alignment: geometricalCalorimeters; Detector alignment and calibration methods (lasers sources particlebeams)performancePB-PB COLLISIONSsourcesCOLISÕES DE ÍONS PESADOS RELATIVÍSTICOSspectrometer [photon]MesonInstrumentationenergy calibrationDetector alignment and calibration methods (lasers sources particlebeams)tutkimuslaitteet610FOS: Physical sciences114 Physical sciencesNuclear physics03 medical and health sciencesCalorimeters0103 physical sciencesCalibrationNuclear Physics - Experimentddc:610[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]DETECTORCalorimeterSpectrometer010308 nuclear & particles physics:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]PHOTODIODESphoton: spectrometerCalorimeters; Detector alignment and calibration methods (lasers sources particle-beams)mass resolutioncalorimeter electromagneticenergy: calibrationCalorimeters; Detector alignment and calibration methods (lasers; sources particlebeams); PB-PB COLLISIONS; PHOTODIODES; DETECTORNATURAL SCIENCES. Physics.Detector alignment and calibration methods (laserscalorimeter: electromagneticHigh Energy Physics::Experimentgeometrical [alignment]detector alignment and calibration methods (lasers sources particlebeams)Journal of instrumentation
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Experimental Evidence for an Attractive p-φ Interaction

2021

Physical review letters 127(17), 172301 (2021). doi:10.1103/PhysRevLett.127.172301

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]ProtonGeneral Physics and Astronomy01 natural sciencesHigh Energy Physics - ExperimentALICEscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]correlation functionNuclear ExperimentPhysicsstrong interactionVDP::Kjerne- og elementærpartikkelfysikk: 431:Nuclear and elementary particle physics: 431 [VDP]VDP::Nuclear and elementary particle physics: 431nuclear matterPHOTOPRODUCTIONParticle Physics - Experimentcorrelation: two-particleQCD SUM-RULES; VECTOR-MESONS; COLLISIONS; PARTICLES; PHOTOPRODUCTIONCOLLISIONSParticle physicsp p: scatteringMesonStrong interactionCorrelation function (quantum field theory)[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Physics and Astronomy(all)530114 Physical sciencessymmetry: chiralQCD SUM-RULES; VECTOR-MESONS; COLLISIONS; PARTICLES; PHOTOPRODUCTION;QCD SUM-RULES0103 physical sciencesPARTICLEScorrelation: two-particle ; symmetry: chiral ; p p: scattering ; scattering length ; Phi(1020) ; coupling constant ; correlation function ; strong interaction ; ALICE ; nuclear matter ; effective range ; experimental results ; 13000 GeV-cms/nucleonNuclear Physics - Experimentddc:530phi meson particle physics ALICE010306 general physicstwo-particle [correlation]Coupling constantchiral [symmetry]010308 nuclear & particles physicsScatteringPhi(1020)coupling constantScattering lengthNuclear matter13000 GeV-cms/nucleonscattering lengthStrong Interactioneffective rangeHigh Energy Physics::ExperimentVECTOR-MESONSexperimental results
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Search for a Stable Six-Quark State at BABAR

2019

Recent investigations have suggested that the six-quark combination uuddss could be a deeply bound state (S) that has eluded detection so far, and a potential dark matter candidate. We report the first search for a stable, doubly strange six-quark state in Upsilon -> S anti-Lambda anti-Lambda decays based on a sample of 90 million Upsilon(2S) and 110 million Upsilon(3S) decays collected by the BABAR experiment. No signal is observed, and 90% confidence level limits on the combined Upsilon(2S,3S) -> S anti-Lambda anti-Lambda branching fraction in the range (1.2-1.4)x10^-7 are derived for m_S < 2.05 GeV. These bounds set stringent limits on the existence of such exotic particles.

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]branching ratio: upper limitElectron–positron annihilationBound stateGeneral Physics and AstronomyBaBar experimentQuarksUpsilon(10355): rare decayUpsilon(10355): electroproductionUpsilon(10020): branching ratioparticle: exoticupsilon mesons: hadronic decay01 natural sciencesdecayHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)Upsilon(10020): electroproductionBound state[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PhysicQCQBExotic particlesPhysicsnew physics: search forSettore FIS/01 - Fisica Sperimentaleelectron positron: colliding beamsdetector limits decay:Nuclear and elementary particle physics: 431 [VDP]ParticlesDark matter (Astronomy)Confidence levelbaryon: dark matterUpsilon(10020): rare decayBranching fractionMatèria fosca (Astronomia)QuarkParticle physicsDark matterFOS: Physical sciencesLambda: pair productionelectron positron: annihilationPartícules (Matèria)NOPhysics and Astronomy (all)BABAR experiment0103 physical sciencesAtomic physicUpsilon(10355): branching ratio010306 general physicsdetectorBranching fractiondark matter: massState (functional analysis)stabilitySLAC PEP StorHEPA-stableBaBarElementary Particles and FieldsHigh Energy Physics::Experimentlimitsexperimental results
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First study of the two-body scattering involving charm hadrons

2022

Physical review / D 106(5), 052010 (2022). doi:10.1103/PhysRevD.106.052010

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]charmed mesoncorrelation [momentum]heavy flavourhiukkasfysiikkaHigh Energy Physics - ExperimentnukleonitHigh Energy Physics - Experiment (hep-ex)ALICENucleon-scatteringscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]BaryonsCollisionsNuclear Experiment (nucl-ex)EXCHANGENuclear ExperimentNuclear ExperimentBARYONSMesonscharm hadronsstrong interactionnucleonVDP::Kjerne- og elementærpartikkelfysikk: 431MESONSexperimental results ; pp: scattering ; momentum: correlation ; nucleon ; isospin ; charmed meson ; D- ; D+ ; strong interaction ; ALICE ; scattering length ; correlation: two-particle ; Coulomb:Nuclear and elementary particle physics: 431 [VDP]PARTIAL-WAVE ANALYSISVDP::Nuclear and elementary particle physics: 431D+D-Particle Physics - ExperimentHeavy-ion physics heavy flavour charm hadronscorrelation: two-particleCOLLISIONSp p: scatteringNuclear and High Energy PhysicsFOS: Physical sciencesPARTIAL-WAVE ANALYSIS; NUCLEON-SCATTERING; COLLISIONS; EXCHANGE; BARYONS; MESONS[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]530114 Physical sciencesheavy-ion physics; charm; heavy flavourNUCLEON-SCATTERINGisospinHeavy Ion ExperimentsPartial-wave analysisNuclear Physics - Experimentsirontaddc:530two-particle [correlation]Nuclear PhysicsHigh Energy Physics::Phenomenologymomentum: correlationExchangeHeavy-ion physicsscattering lengthCoulombcharmexperimental results
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