AGS-RHIC User’s Workshop -- Heavy Quark Production at RHIC Large Seminar Room, Physics Bldg May 13, 2004 Organizers: Vince Cianciolo, ORNL Huan Zhong Huang,

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Presentation transcript:

AGS-RHIC User’s Workshop -- Heavy Quark Production at RHIC Large Seminar Room, Physics Bldg May 13, 2004 Organizers: Vince Cianciolo, ORNL Huan Zhong Huang, UCLA Kirill Tuchin, BNL

Workshop Program Chair: Kirill Tuchin 9:00-9:05 Remarks from Organizers 9:05-9:50 Wei Xie (PHENIX) ‘PHENIX charm results in Au+Au, d+Au and p+p collisions’ 9:50-10:30 Ralf Rapp (TAMU) ‘Charm(onium) re-interactions at RHIC’ 10:30-11:00 break 11:00-11:45 Tom Cormier (STAR) ‘Charm and beauty from inclusive electrons in STAR’ 11:45-12:30 Mary Bishai (FNAL) Charm and beauty production at the Tevatron’ Chair: Vince Cianciolo 2:00-2:40 Dmitri Kharzeev (BNL) ‘Heavy quarks as a probe of QCD matter’ 2:40-3:20 An Tai (UCLA) ‘Measurement of open charm production from STAR at RHIC’ 3:20-3:45 Magdalena Djordjevic (Columbia) ‘Heavy quark energy loss in QCD matter’ 3:45-4:00 break 4:00-4:30 Peter Petreczky (BNL) ‘Quarkonia properties at finite temperature from LQCD’ 4:30-5:00 Cheuk-Yin Wong (ORNL) ‘Dissociation of charmonium by gluons and hadrons’ 5:00-5:40 Gerd Kunde (PHENIX) ‘Future of charm measurement from PHENIX’

Charm and Beauty reflect QCD Properties of Matter Initial gluon flux and initial temperature of the gluon-dominated matter Transition temperature from partons to hadrons Color degree of freedom of the matter -- definement

Quarkonium Dynamics in Color Medium Recent LQCD calculations  J/  can survive up to a temperature > 1.6 T c  ’ melts at or near the T c Probes for QCD Color Degree of Freedom ! QCD Color Screening: (T. Matsui and H. Satz, Phys. Lett. B178, 416 (1986)) A color charge in a color medium is screened similar to Debye screening in QED  the melting of J/ . cc Charm quarks c-c may not bind Into J/  in high T QCD medium

Heavy Quark in QCD Medium Heavy Quark energy loss in color medium ! -- dead cone effect ? Charm enhancement from high temperature gluonic matter (T init > 500 MeV)! An Intriguing Scenario ?! PTPT R AA 1.0 Light hadrons Open Charm

Heavy Quark Production Dynamics Charm and Beauty Production at Tevatron (CDF and D0) and pQCD Quarkonia production – color singlet/octet k T Factorization versus co-linear factorization Heavy quark production and the Color Glass Condensate

J/  suppression or enhancement ! Quarkonium suppression: –Color Screening –Partonic dissociation by gluons –Hadronic dissociation by co-movers –At Forward Rapidity and Color Glass Condensate –? Quarkonium enhancement: –Large initial charm pair production –Thermal statistical formation of J/  at hadronization or charm quark coalescence

Charm Dynamics in Bulk Partonic Matter Volcanic low p T – Bulk matter flows Volcanic mediate p T – Spatter (clumps) Does Charm Flow? Does charm meson/baryon form from multi-parton dynamics? Thermalization of partonic matter -- charm elliptic flow v 2 ! -- charm hadron chemistry ! Constituent quark scaling for charmed baryon/meson ?!

M inv (GeV) J/  ->  +  - 2 RHIC Heavy Quark Physics Program PHENIX PRELIMINARY PHENIX electron and J/  measurement! See Wei Xie and Gerd Kunde’s talk ~ x100 more data in Run-4! M inv (GeV) J/  ->e + e - Clear J/  signal already observed by muon and electron arms in a small subset of Run-4 Au+Au data.

RHIC Heavy Quark Physics Program STAR electron from TPC,TOF & EMC -- Tom Cormier direct open charm from TPC -- An Tai RHIC Exp Program from PHENIX and STAR: Au+Au data on charm and beauty,Charm flow, J/  and Upsilon ! Detector Upgrade: PHENIX -- VTX STAR -- TOF and microVertex Detector (MVD) ! STAR Preliminary Beauty Charm

Workshop Program Chair: Kirill Tuchin 9:00-9:05 Remarks from Organizers 9:05-9:50 Wei Xie (PHENIX) ‘PHENIX charm results in Au+Au, d+Au and p+p collisions’ 9:50-10:30 Ralf Rapp (TAMU) ‘Charm(onium) re-interactions at RHIC’ 10:30-11:00 break 11:00-11:45 Tom Cormier (STAR) ‘Charm and beauty from inclusive electrons in STAR’ 11:45-12:30 Mary Bishai (FNAL) Charm and beauty production at the Tevatron’ Chair: Vince Cianciolo 2:00-2:40 Dmitri Kharzeev (BNL) ‘Heavy quarks as a probe of QCD matter’ 2:40-3:20 An Tai (UCLA) ‘Measurement of open charm production from STAR at RHIC’ 3:20-3:45 Magdalena Djordjevic (Columbia) ‘Heavy quark energy loss in QCD matter’ 3:45-4:00 break 4:00-4:30 Peter Petreczky (BNL) ‘Quarkonia properties at finite temperature from LQCD’ 4:30-5:00 Cheuk-Yin Wong (ORNL) ‘Dissociation of charmonium by gluons and hadrons’ 5:00-5:40 Gerd Kunde (PHENIX) ‘Future of charm measurement from PHENIX’ Large Seminar Room, Physics Bldg May 13, 2004