Search results for "Lead collisions"

showing 3 items of 13 documents

EPPS16 - First nuclear PDFs to include LHC data

2017

We present results of our recent EPPS16 global analysis of NLO nuclear parton distribution functions (nPDFs). For the first time, dijet and heavy gauge boson production data from LHC proton-lead collisions have been included in a global fit. Especially, the CMS dijets play an important role in constraining the nuclear effects in gluon distributions. With the inclusion of also neutrino-nucleus deeply-inelastic scattering and pion-nucleus Drell-Yan data and a proper treatment of isospin-corrected data, we were able to free the flavor dependence of the valence and sea quark nuclear modifications for the first time. This gives us less biased, yet larger, flavor by flavor uncertainty estimates. …

Uncertainty estimates Uncertainty analysisHigh Energy Physics::LatticeLead collisionsNuclear TheoryHigh Energy Physics::PhenomenologyFOS: Physical sciencesNuclear parton distribution functions114 Physical sciencesHigh Energy Physics - ExperimentHigh Energy Physics - PhenomenologyHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)Production dataHigh Energy Physics::ExperimentNuclear modificationNuclear ExperimentNuclear effectsBosonsDistribution functionsGlobal analysisInelastic scattering Deeply inelastic scatterings
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Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb−1 of Pb+Pb data with the ATLAS detector

2021

We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; ANID, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF and MPG, Germany; GSRT, Greece; RGC and Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Mor…

axion: mass: lower limit:Kjerne- og elementærpartikkelfysikk: 431 [VDP]heavy ion: scatteringmeasured [channel cross section]transverse energy [photon]QC770-798transverse momentum dependence01 natural scienceschannel cross section: upper limitmass: lower limit [axion]High Energy Physics - ExperimentSubatomär fysikHigh Energy Physics - Experiment (hep-ex)Hadron-Hadron scattering (experiments)Subatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Invariant massNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentQCPhysicsphoton: transverse energySettore FIS/01Large Hadron ColliderLuminosity (scattering theory)upper limit [channel cross section]ATLASangular dependence:Nuclear and elementary particle physics: 431 [VDP]CERN LHC CollPseudorapidityaxion-like particlesProduction (computer science)channel cross section: measuredParticle Physics - ExperimentParticle physicsNuclear and High Energy Physics530 PhysicsFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]transverse momentumplanarityRelativistic heavy ionsAcoplanarity530differential cross section: measuredscattering [heavy ion]measured [differential cross section]Nuclear and particle physics. Atomic energy. Radioactivity0103 physical sciencesddc:530Nuclear Physics - Experimentlcsh:Nuclear and particle physics. Atomic energy. Radioactivity5020 GeV-cms/nucleonHigh Energy PhysicsLHC Particle Physics Lead-lead collisions010306 general physicsCiencias Exactastwo-photon [mass spectrum]leadrapidity [photon]Scattering010308 nuclear & particles physicsphoton photon: scatteringFísicaphoton: rapidityExperimental High Energy PhysicsS029AXPscattering [photon photon]lcsh:QC770-798Energy (signal processing)mass spectrum: two-photonexperimental resultsThe Journal of High Energy Physics
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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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