0000000000051043

AUTHOR

R Jefferson Porter

showing 6 related works from this author

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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J/ψ suppression at forward rapidity in Pb–Pb collisions at sNN=5.02 TeV

2017

The inclusive J/$\psi$ production has been studied in Pn-Pb and pp collisions at the centre-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}}=5.02$ TeV, using the ALICE detector at the CERN LHC. The J/$\psi$ meson is reconstructed, in the centre-of-mass rapidity interval $2.5<y<4$ and in the transverse-momentum range $p_{\rm T}<12$ GeV/$c$, via its decay to a muon pair. In this Letter, we present results on the inclusive J/$\psi$ cross section in pp collisions at $\sqrt{s}=5.02$ TeV and on the nuclear modification factor $R_{\rm AA}$. The latter is presented as a function of the centrality of the collision and, for central collisions, as a function of the transverse momentum $p_{\rm T}$ of…

PhysicsNuclear and High Energy PhysicsParticle physicsMuonMeson010308 nuclear & particles physics01 natural sciencesNuclear physics0103 physical sciencesQuark–gluon plasmaHigh Energy Physics::ExperimentRapidityProduction (computer science)Impact parameterNuclear Experiment010306 general physicsNucleonEnergy (signal processing)Physics Letters B
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Kaon-proton strong interaction at low relative momentum via femtoscopy in Pb-Pb collisions at the LHC

2021

Physics letters / B 822, 136708 (2021). doi:10.1016/j.physletb.2021.136708

atom: exoticheavy ion: scatteringnucleon: paircorrelation [momentum]exoticheavy ion scatteringmomentum correlationmeasurement methodsHadron01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)effective field theoryALICE[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]effective field theory: chiralNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear Experimentchiral [effective field theory]effective field theory chiralPhysicsatom exoticSPECTROSCOPYatomstrong interactionPhysicsnucleontwo-particleheavy ion3. Good healthCERN LHC Collkinematicsforce CoulombScattering theoryNucleonforceCoulomb [force]Particle Physics - ExperimentParticle physicsNuclear and High Energy Physicsstrong interaction [K p]QC1-999FOS: Physical sciencesmomentum[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]530K p: strong interaction ; heavy ion: scattering ; momentum: correlation ; force: Coulomb ; effective field theory: chiral ; atom: exotic ; nucleon: pair ; heavy ion scattering ; momentum correlation ; force Coulomb ; effective field theory chiral ; atom exotic ; nucleon pair ; CERN LHC Coll ; two-particle ; measurement methods ; sensitivity ; strong interaction ; ALICE ; kinematics ; TeV ; scattering length ; experimental results ; 5020 GeV-cms/nucleon ; hadron114 Physical sciencesscattering [heavy ion]0103 physical sciencesTeVSCATTERINGNuclear Physics - Experimentddc:5305020 GeV-cms/nucleonSensitivity (control systems)010306 general physicsexotic [atom]Exotic atomK p: strong interaction010308 nuclear & particles physicsScatteringforce: Coulombpairpair [nucleon]momentum: correlationScattering lengthHeavy Ions ExperimentsLOW-ENERGY K; DA-PHI-NE; SCATTERING; SPECTROSCOPYsensitivityLOW-ENERGY KchiralALICE heavy-ion collisions nuclear physicscorrelationscattering lengthCoulombHigh Energy Physics::ExperimenthadronDA-PHI-NEnucleon pairEnergy (signal processing)experimental results
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Jet-like correlations with neutral pion triggers in pp and central Pb–Pb collisions at 2.76 TeV

2016

Physics letters / B B763, 238 - 250 (2016). doi:10.1016/j.physletb.2016.10.048

heavy ion: scattering:Kjerne- og elementærpartikkelfysikk: 431 [VDP]ROOT-S(NN)=200 GEVQUARK-GLUON PLASMA; TRANSVERSE-MOMENTUM DEPENDENCE; LEAD-LEAD COLLISIONS; ROOT-S(NN)=2.76 TEV; ROOT-S-NN=2.76 TEV; ATLAS DETECTOR; SUPPRESSION; COLLABORATION; PERSPECTIVE; HADRONSHadronATLAS DETECTORCOLLABORATION01 natural sciencespi: triggerfragmentation functionParticle identificationHigh Energy Physics - ExperimentQUARK-GLUON PLASMAHADRON CORRELATIONSHigh Energy Physics - Experiment (hep-ex)ALICEp-Pb collisionsANISOTROPIC FLOWLEAD-LEADscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Experiment (nucl-ex)ROOT-S(NN)=2.76 TEVPERSPECTIVENuclear ExperimentMonte CarloNuclear ExperimentPhysicsTime projection chamberHADRONSPerturbative QCDneutral pion ; lead-lead ; correlationsuppressioncharged particlelcsh:QC1-999Charged particleTRANSVERSE-MOMENTUM DEPENDENCE CENTRAL AU+AU COLLISIONS LEAD-LEAD COLLISIONS PLUS AU COLLISIONS QUARK-GLUON PLASMA HADRON CORRELATIONS ROOT-S-NN=2.76 TEV ROOT-S(NN)=200 GEV CHARGED-PARTICLES ANISOTROPIC FLOW.:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]PRIRODNE ZNANOSTI. Fizika.:Nuclear and elementary particle physics: 431 [VDP]CHARGED-PARTICLESflowLEAD-LEAD COLLISIONSperturbation theory [quantum chromodynamics]correlation: two-particleCOLLISIONSParticle physicsp p: scatteringPLUS AU COLLISIONSNuclear and High Energy PhysicseducationVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431FOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]transverse momentumtriggerstrigger [pi]114 Physical sciencesQUARK-GLUON PLASMA; TRANSVERSE-MOMENTUM DEPENDENCE; LEAD-LEAD; COLLISIONS; ROOT-S(NN)=2.76 TEV; ROOT-S-NN=2.76 TEV; ATLAS DETECTOR; SUPPRESSION; COLLABORATION; PERSPECTIVE; HADRONS530ROOT-S-NN=2.76 TEVNuclear physicsPionTRANSVERSE-MOMENTUM DEPENDENCEscattering [heavy ion]0103 physical sciencesFragmentation functionddc:530Nuclear Physics - Experimentquantum chromodynamics: perturbation theory010306 general physicscapturetwo-particle correlationstwo-particle [correlation]enhancementSUPPRESSIONneutral pionVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431ta114CENTRAL AU+AU COLLISIONS010308 nuclear & particles physicsbackground:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]NATURAL SCIENCES. Physics.lead-leadcorrelationQuark–gluon plasmaproton-proton collisionsHigh Energy Physics::Experimenthadronlcsh:Physics
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Λc+ Production and Baryon-to-Meson Ratios in pp and p -Pb Collisions at sNN=5.02  TeV at the LHC

2021

The prompt production of the charm baryon Λ c + and the Λ c + / D 0 production ratios were measured at midrapidity with the ALICE detector in p p and p -Pb collisions at s NN = 5.02 TeV . These new measurements show a clear decrease of the Λ c + / D 0 ratio with increasing transverse momentum ( p T ) in both collision systems in the range 2 p T 12 GeV / c , exhibiting similarities with the light-flavor baryon-to-meson ratios p / π and Λ / K S 0 . At low p T , predictions that include additional color-reconnection mechanisms beyond the leading-color approximation, assume the existence of additional higher-mass charm-baryon states, or include hadronization via coalescence can describe the dat…

PhysicsParticle physicsLarge Hadron ColliderMeson010308 nuclear & particles physicsNuclear TheoryHigh Energy Physics::PhenomenologyHadronGeneral Physics and Astronomy01 natural sciencesHadronizationBaryon0103 physical sciencesTransverse momentumHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsPhysical Review Letters
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Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC

2022

Physical review / D 105(1), L011103 (2022). doi:10.1103/PhysRevD.105.L011103

Physics and Astronomy (miscellaneous)electron p: interactionPROTON-PROTON COLLISIONSMESON PRODUCTIONROOT-S=5.02 TEVmeasured [cross section]hiukkasfysiikka2760 GeV-cms/nucleon01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)ALICEscattering [p p]ground state [charm]Charm; p-p collisions[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Experiment (nucl-ex)Nuclear ExperimentNuclear Experimentcharm: ground statep-p collisionsMeson productioninteraction [electron p]CERN LHC Coll7000 GeV-cms/nucleonParticle Physics - Experimentperturbation theory [quantum chromodynamics]p p: scatteringCharmcharm: fragmentation ; p p: scattering ; electron p: interaction ; charm: ground state ; quantum chromodynamics: perturbation theory ; cross section: measured ; hadron hadron: interaction ; CERN LHC Coll ; rapidity ; ALICE ; experimental results ; 2760 GeV-cms/nucleon ; 5020 GeV-cms/nucleon ; 7000 GeV-cms/nucleoneducationFOS: Physical sciencesfragmentation [charm][PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]530114 Physical sciencesProton-proton collisions0103 physical sciencescharm fragmentation fractions nuclear physicsddc:5305020 GeV-cms/nucleonNuclear Physics - Experimentcharm: fragmentationD-0quantum chromodynamics: perturbation theory010306 general physicshadron hadron: interactionPROTON-PROTON COLLISIONS; MESON PRODUCTION; ROOT-S=5.02 TEV; QCD; D-0interaction [hadron hadron]010308 nuclear & particles physicsHigh Energy Physics::Phenomenologycross section: measuredRoot-s=5.02 tevQCDQcdrapidityHigh Energy Physics::Experimentkvanttiväridynamiikkaexperimental results
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