منابع مشابه
Heavy Quarkonia and Quark Drip Lines in Quark-Gluon Plasma
Using the potential model and thermodynamical quantities obtained in lattice gauge calculations, we determine the spontaneous dissociation temperatures of color-singlet quarkonia and the ‘quark drip lines’ which separate the region of bound QQ̄ states from the unbound region. The dissociation temperatures of J/ψ and χb in quenched QCD are found to be 1.62Tc and 1.18Tc respectively, in good agree...
متن کاملQuarkonia and Quark Drip Lines in Quark-Gluon Plasma
We extract the Q-Q̄ potential by using the thermodynamic quantities obtained in lattice gauge calculations. The potential is tested and found to give dissociation temperatures that agree well with those from lattice gauge spectral function analysis. Using such a Q-Q̄ potential, we examine the quarkonium states in a quark-gluon plasma and determine the ‘quark drip lines’ which separate the region ...
متن کاملDissociation of Heavy Quarkonia in the Quark-Gluon Plasma
Using a temperature-dependent potential obtained from lattice gauge calculations, we study the stability of heavy quarkonia in the quark-gluon plasma. We find that only Υ(1S) and ηb(1S) are bound in the quark-gluon plasma, and have a small binding energy. The quark-gluon plasma may be revealed by an Υ(1S) dilepton peak with an invariant mass close to twice the current b quark mass, which is low...
متن کاملTransport properties and Langevin dynamics of heavy quarks and quarkonia in the Quark Gluon Plasma
Quark Gluon Plasma transport coefficients for heavy quarks and QQ pairs are computed through an extension of the results obtained for a hot QED plasma by describing the heavy-quark propagation in the eikonal approximation and by weighting the gauge field configurations with the Hard Thermal Loop effective action. It is shown that such a model allows to correctly reproduce, at leading logarithmi...
متن کاملTowards the Quark-Gluon Plasma
We discuss recent experimental results in the field of ultra-relativistic nuclear collisions. The emerging “picture” is a collectively expanding, initially hot and dense fireball in which strangenessand low-mass di-lepton pair production are enhanced and J/Ψ production is suppressed compared to expectations from nucleon-nucleon collisions. It is argued that, taken together, these data provide c...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2013
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x13400125