Quark Matter 2012

Session

Parallel 1D: Heavy Flavor & Quarkonia (Chair R. Granier de Cassagnac)

40

14 Aug 2012, 14:15

229. Detailed measurements of charmonium suppression in PbPb collisions at 2.76 TeV with CMS

Dong Ho Moon (Korea University (KR))

14/08/2012, 14:15

Heavy flavor and quarkonium production

Oral Presentation

CMS has measured the nuclear modification factors of prompt J/psi in PbPb collisions at sqrt(sNN) = 2.76 TeV. For prompt J/psi with relatively high pT (6.5 < pT < 30 GeV/c), a strong, centrality-dependent suppression is observed in PbPb collisions, compared to the yield in pp collisions scaled by the number of inelastic nucleon-nucleon collisions. During the 2011 data taking period the data...

497. Jpsi and psi (2S) production in Pb-Pb collisions with the ALICE Muon spectrometer at the LHC

Roberta Arnaldi (Universita e INFN (IT))

14/08/2012, 14:35

Oral Presentation

ALICE is the LHC experiment dedicated to the study of heavy ion collisions. The main purpose of ALICE is to investigate the properties of a new state of deconfined nuclear matter, the Quark Gluon Plasma. Quarkonium measurements will play a crucial role in this investigation. In particular, the sequential suppression of the quarkonium states by color screening has long being suggested as a...

374. Heavy quark potential at non-zero temperature and quarkonium spectral functions

Peter Petreczky (BNL)

14/08/2012, 14:55

Oral Presentation

We calculate different types of Wilson loops of temporal size t < 1/T at non-zero temperatures on the lattice using Highly Improved Staggered Quark (HISQ) action and temporal extent Nt=8 and 12. Unlike other static correlators which go around the periodic boundary these Wilson loops are not related to the free energy of static quark anti-quark pair. Therefore from the analysis of...

306. Recent Heavy Quarkonia Results from PHENIX

Darren McGlinchey (F)

14/08/2012, 15:15

Oral Presentation

The idea of using heavy quarkonia production as a direct probe of the screening length in the quark gluon plasma (QGP) has been around for over two decades. Suppression of quarkonia production in heavy ion collisions has been measured at the SPS, RHIC, and the LHC, including new measurements of $\Upsilon(1S+2S+3S)$ production in Au+Au collisions by PHENIX. However, a full understanding of...

375. Quarkonia production in the STAR experiment

Barbara Trzeciak (Warsaw University of Technology)

14/08/2012, 15:35

Oral Presentation

The suppression of quarkonia production in high energy nuclear collisions relative to proton-proton collisions, due to the Debye screening of the quark-antiquark potential, was proposed as a signature of the formation of Quark-Gluon Plasma. However, there are other effects that may affect the observed quarkonia production, such as cold nuclear matter effects, final state nuclear absorption and...

146. Comprehensive Analysis of in-Medium Quarkonia from SPS to LHC

Ralf Rapp (Texas A&M University)

14/08/2012, 15:55

Heavy flavor and quarkonium production

Oral Presentation

We employ a kinetic rate-equation approach in a thermally expanding medium to compute the suppression and regeneration of quarkonia in heavy-ion collisions [1]. The in-medium properties of quarkonia figuring into the rate equation (widths, binding energies and heavy-quark masses) are constrained by euclidean correlators from lattice QCD. Input cross sections for heavy quarks and quarkonia, as...