0000000000266178

AUTHOR

Marco H. D. Van Leeuwen

showing 4 related works from this author

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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Production of Muons from Heavy Flavor Decays at Forward Rapidity inppand Pb-Pb Collisions atsNN=2.76  TeV

2012

The ALICE Collaboration has measured the inclusive production of muons from heavy-flavor decays at forward rapidity, 2.5 < y < 4, in pp and Pb-Pb collisions at root s(NN) = 2.76 TeV. The p(t)-differential inclusive cross section of muons from heavy-flavor decays in pp collisions is compared to perturbative QCD calculations. The nuclear modification factor is studied as a function of p(t) and collision centrality. A weak suppression is measured in peripheral collisions. In the most central collisions, a suppression of a factor of about 3-4 is observed in 6 < p(t) < 10 GeV/c. The suppression shows no significant p(t) dependence.

PhysicsParticle physicsMuon010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyGeneral Physics and AstronomyPerturbative QCDModification factor01 natural sciencesNuclear physics0103 physical sciencesHigh Energy Physics::ExperimentRapidityNuclear Experiment010306 general physicsFlavorPhysical Review Letters
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Neutral pion and η meson production at midrapidity in Pb-Pb collisions at sNN=2.76 TeV

2018

Neutral pion and η meson production in the transverse momentum range 1 <pT< 20 GeV/c have been measured at midrapidity by the ALICE experiment at the Large Hadron Collider (LHC) in central and semicentral Pb-Pb collisions at sNN  = 2.76 TeV. These results were obtained using the photon conversion method as well as the Photon Spectrometer (PHOS) and Electromagnetic Calorimeter detectors. The results extend the upper pT reach of the previous ALICE π0 measurements from 12 to 20 GeV/c and present the first measurement of η meson production in heavy-ion collisions at the LHC. The η/π0 ratio is similar for the two centralities and reaches at high pT a plateau value of 0.457 ± 0.013stat ± 0.018sys…

PhysicsRange (particle radiation)PhotonLarge Hadron ColliderSpectrometer010308 nuclear & particles physics01 natural sciencesSpectral lineHadronizationNuclear physicsPion0103 physical sciencesQuark–gluon plasmaHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsPhysical Review C
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Constraints on jet quenching in p–Pb collisions at sNN=5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions

2018

The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high-transverse momentum trigger hadron in p–Pb collisions at √sNN = 5.02 TeV. Jets are reconstructed from charged-particle tracks using the anti-kT algorithm with resolution parameter R = 0.2 and 0.4. A data-driven statistical approach is used to correct the uncorrelated background jet yield. Recoil jet distributions are reported for jet transverse momentum 15 < pch T,jet < 50 GeV/c and are compared in various intervals of p–Pb event activity, based on charged-particle multiplicity and zero-degree neutral energy in the forward (Pb-going) direction. The semi-inclusive ob…

PhysicsQuantum chromodynamicsNuclear and High Energy PhysicsLarge Hadron Collider010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaHadronObservable01 natural sciencesNuclear physicsRecoil0103 physical sciencesQuark–gluon plasmaHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsJet quenchingOrder of magnitudePhysics Letters B
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