STAR Heavy Quark Physics
Huan Zhong Huang and Thomas Ullrich
For the Heavy Quark Working Group
STAR Collaboration Meeting Feb 25-Mar 1, 2003
Brookhaven National Laboratory
Broad Physics ProgramOpen Charm (and Beauty?):
1) Constrain the gluon structure function of the collidingnuclei through the g+gc+cbar process,
2) Empirical parton flux normalization for quarkoniums,3) Charm quark evolution dynamics in the partonic state
transverse radial flow, elliptic flow (?)4) Charm at high pT, is there a ‘dead cone’ effect?
Quarkonium:1) Production dynamics from bulk quark matter
increased (coalescence) or suppressed (melting)?2) Possible color screening dynamics in color medium
(and no screening for family?)
And Many More !
STAR system is not yet optimized for heavy quark physics !
STAR Future Detectors Dear to Heavy Quark Physics
1) Full Barrel EMCGreatly enhance the quarkonium capability
2) Full TOF Barrel (STAR TOF Proposal)Will allow STAR to explore open charm physics using event-mixing technique
3) MicroVertex Detector (H. Wieman et al)Full exploration of charm physics program
STAR will be charmer than PHENIX on charm physics
Direct
Decay electrons PHENIX
STAR
Fig: S. Batsouli nucl-th/0212068
Short Term Effort (relevant for d+Au and next year Au+Au)
1) L0/L2 Trigger for J/ enhancement(Manuel, Thomas, + Trigger Group--Hank,
Falk, Zoran + DAQ—Tonka, Jeff L.)Manuel’s talk
2) Electron PID using EMC-TPC for offline analyses
3) Explore open charm possibility (d+Au)
4) L0/L2/L3 for Au+Au(Next year Au+Au run may be our best hope
for a solid measurement)
Parallel Session: Thursday 9:00-12:00 Room 2-78
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