Hard Probes 2012

Session

Parallel IIC: High pT suppression, Global Observables

28 May 2012, 16:30

Cagliari - Italy

30. Measurement of dN/deta and dET/deta in PbPb collisions at sqrt(s)=2.76TeV with CMS

Michael Murray (University of Kansas)

28/05/2012, 16:30

Oral presentation

Measurements of the charged hadron multiplicity and transverse energy are presented for minimum bias PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair. The number of charged hadrons was obtained by two different methods based on the inner silicon pixel system of the CMS detector at the LHC. One technique involved counting the number of reconstructed single particle hits...

128. Neutral pion production in Au+Au collisions at RHIC

Robert Vertesi (Institute for Particle and Nuclear Physics, Wigner RCP, HAS)

28/05/2012, 16:50

Oral presentation

Neutral pion production in \sqrt{sNN}=130 and 200 GeV central Au+Au collisions at the Relativistic Heavy Ion Collider has been found to be strongly suppressed in comparison to the expectations from properly scaled p+p collisions [1], while data from d+Au collisions showed no suppression [2]. This observation was one of the first convincing signatures of a strongly interacting partonic medium...

99. Neutral meson production in pp and Pb-Pb collisions at LHC

Yury Kharlov (Institute for High Energy Physics)

28/05/2012, 17:10

Oral presentation

Identified hadron spectra are considered as a sensitive probe for transport properties of strongly interacting matter produced in heavy ion collisions. The ALICE detector at the LHC studies pi0 and eta meson production via their two-photon decays by two complementary methods, using electromagnetic calorimeters and the central tracking system for photons converted to e+e- pairs on the material...

19. Measurement of charged hadron R_AA at high pT in PbPb collisions at sqrt(s)=2.76TeV with CMS

Krisztian Krajczar (MIT)

28/05/2012, 17:30

Oral presentation

The nuclear modification factor R_AA is one of the key signatures for the energy loss of fast partons traversing a QCD medium. Charged particle transverse momentum (pT) spectra have been measured by CMS for pp and PbPb collisions at the same collision energy per nucleon pairs, sqrt(s_(NN))=2.76 TeV, corresponding to integrated luminosities of 230 nb-1 and 150 ub-1, respectively....

91. Charged particle production in Pb-Pb collisions at the LHC with the ALICE detector

Michele Floris (CERN)

28/05/2012, 17:50

Oral presentation

(on behalf of the ALICE Collaboration) The ALICE experiment measured charged particle production in $\sqrt{s_{NN}}=2.76$~TeV Pb-Pb collisions at the LHC. We report on results on charged particle multiplicity and transverse momentum spectra. All the results are presented as a function of centrality, estimated with a Glauber Monte Carlo fit to multiplicity distributions reconstructed in...