HARD PROBES OF DENSE MATTER

Abstract

Direct probes for the QGP must be hard enough to resolve sub-hadronic scales ($\ll \la^{-1}$) and distinguish confined and deconfined media. This can be achieved by fast colour charges (jets) and heavy quark resonances (quarkonia). After a general survey, we study quarkonia as confinement probe and show in particular that confined matter is transparent, deconfined matter opaque to \J's.

13 pages, plain TeX, figures available upon request from the author

References in corpus (6)

• Multiple Collisions and Induced Gluon Bremsstrahlung in QCD
• Quarkonium Interactions in Hadronic Matter
• Heavy Quark Production in pp Collisions
• PRODUCTION OF DRELL--YAN PAIRS IN HIGH ENERGY NUCLEON--NUCLEON COLLISIONS
• Chiral Dynamics, Deconfinement and Thermal Dileptons
• Heavy quark photoproduction

Cited by in corpus (6)

• Quarkonium Production and Color Deconfinement in Nuclear Collisions
• Baryonic Strangeness and Related Susceptibilities in QCD
• Upsilon production in d+Au collisions at STAR
• ${\rm Y}$ production in p+p and Au+Au collisions in STAR
• Dielectron Production in Heavy Ion Collisions at 158 GeV/c per Nucleon
• Quark Gluon Plasma - Recent Advances