QM 2011 - XXII International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

Session

Heavy flavor

Parallel session 1-8

23 May 2011, 17:30

Théâtre National (Centre Bonlieu)

Conveners

Heavy flavor

• Enrico Scomparin (INFN, Torino)

280. STAR measurements of bottom to charm ratio and heavy quark interaction with the QCD medium through non-photonic electron-hadron correlations

wenqin xu (University of California Los Angeles)

23/05/2011, 17:30

Heavy flavor and quarkonia production

Parallel

FOR THE STAR COLLABORATION Heavy Quarks are mostly produced through gluon fusions during the initial stage of the heavy ion collisions. Experimentally heavy quarks are found to suffer a considerable energy loss in the QCD medium with the nuclear modification factor for non-photonic electrons (NPE) from heavy quark decays much smaller than unity in central Au+Au collisions at RHIC. To better...

609. Open heavy flavor physics in the muon channel with ALICE in pp collisions at 7 TeV and PbPb at 2.76 TeV

Xiaoming Zhang (Laboratoire de Physique Corpusculaire, Clermont-Ferrand)

23/05/2011, 17:50

Heavy flavor and quarkonia production

Parallel

Heavy-quark production is one of the probes for the investigation of the properties of the high-density medium formed in heavy-ion collisions. This investigation requires also the study of proton-proton collisions. Besides providing the necessary baseline for nucleus-nucleus collisions, proton-proton collisions are of great interest, also in their own right, since they allow to test...

385. Quark recombination and heavy quark diffusion in hot nuclear matter

Prof. Rainer Fries (Texas A&M University + RBRC)

23/05/2011, 18:10

Heavy flavor and quarkonia production

Parallel

We review resonance recombination for quarks and show that it is compatible with quark and hadron distributions in local thermal equilbrium. We then calculate realistic heavy quark phase space distributions in heavy ion collisions using Langevin simulations with non-perturbative interactions in hydrodynamic backgrounds. We hadronize the heavy quarks on the critical hypersurface given by...

509. Heavy-flavor production cross section in the semi-electronic channel at mid-rapidity in pp collisions at sqrt(s)=7 TeV with ALICE

Dr Silvia Masciocchi (GSI Darmstadt)

23/05/2011, 18:30

Heavy flavor and quarkonia production

Parallel

Heavy quarks (charm and beauty) are among the most important probes that allow to test perturbative QCD descriptions of hard processes in hadronic interactions, as well as to study the hot matter produced in high energy nucleus-nucleus collisions. Precision measurements of heavy flavour production in proton-proton collisions provide the necessary reference for the interpretation of their...

379. Heavy quark diffusion from lattice QCD spectral functions

Dr Heng-Tong Ding (Brookhaven National Lab)

23/05/2011, 18:50

Heavy flavor and quarkonia production

Parallel

We analyze the low energy part of charmonium spectral functions on large lattices close to the continuum limit in the temperature region $1.5<T/T_c<3$ as well as for $T \simeq 0.75T_c$. We present evidence for the existence of a transport peak above $T_c$ and its absence below $T_c$. The heavy quark diffusion constant is then estimated using the Kubo formula. As part of the calculation we also...

450. Bottomonium production measured in PbPb and pp collisions by CMS

Zhen Hu (Purdue University)

23/05/2011, 19:10

Heavy flavor and quarkonia production

Parallel

The LHC centre-of-mass energy allows copious $\Upsilon$ production in PbPb collisions. Detailed measurements of bottomonium will help characterize the dense matter produced in heavy-ion collisions beyond what was accessible at RHIC (mostly) with charmonia. The full spectroscopy of quarkonium states has been suggested as a possible thermometer for the QGP. With its excellent dimuon mass...