Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-07-15
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages (Latex), 6 figures. Invited talk presented at Strangeness'96 Meeting, Budapest, May 1996. To be published in "Heavy-I
Scientific paper
Final-state interaction and screening have a great influence on $q \bar q$ production cross sections, which are important quantities in many problems in quark-gluon plasma physics. They lead to an enhancement of the cross section for a $q \bar q$ color-singlet state and a suppression for a color-octet state. The effects are large near the production threshold. The presence of screening gives rise to resonances for $q\bar q$ production just above the threshold at specific plasma temperatures. These resonances, especially $c\bar c$ and $b \bar b$ resonances, may be utilized to search for the quark-gluon plasma by studying the temperature dependence of heavy-quark pair production just above the threshold.
Chatterjee Lali
Wong Cheuk-Yin
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