I. M. Narodetskiy | Searcharxiv

arXiv2011

Heavy quark bound states above deconfinement

A comprehensive study of the color singlet heavy quark states above T_c is given, using the Field Correlator Method (FCM) for nonperturbative Q{\bar Q} potentials and the screened Coulomb potential with the T-dependent Debye radius. Using these potentials we calculate binding energies and melting temperatures of heavy mesons and baryons in the deconfined phase of quark-gluon plasma and the J/ψand Upsilon disintegration cross sections via the gluon absorption.

hep-ph↗

arXiv2011

Binding Energies and Melting Temperatures of Heavy Hadrons in Quark-Gluon Plasma

We analyze the static potential of a quark-antiquark pair at $T\,\geq\,T_c$, where $T_c$ is a temperature of a deconfinement phase transition in QCD. We discuss the possibility that the non-perturbative part of this potential can be studied through the modification of the correlation functions, which define the quadratic field correlators of the nonperturbative vaccuum fields. We use the non-perturbative quark-antiquark potential derived in this way and the screened one-gluon-exchange potential with $T$-dependent Debye screening mass to calculate $J/ψ$, $Υ$ and $Ω_{bbb}$ binding energies and melting temperatures in the deconfined phase of the full 2-flavors QCD.

hep-ph↗