Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-10-16
Acta Phys.Polon.Supp.3:759-764,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 2 figures, contribution to the conference Three Days of Strong Interactions, Wroclaw (Poland) 9. - 11. VII. 2009
Scientific paper
We investigate the properties of charmonia in a thermal medium, showing that with increasing temperature the decay widths of these mesons behave in a non-trivial way. Employing a potential model with interaction potential extracted from thermal lattice QCD calculations of the free-energy of a static quark-antiquark pair, we study some decay processes in the crossover region. We find that at temperatures $T \sim T_c$ the decay widths of the $J/\Psi$ that depend on the value of the wave function at the origin are enhanced with respect to the values in vacuum. In the same temperature range the decay width of the process $\chi_{cJ} \to J/\Psi + \gamma$ is enhanced by approximately a factor 6 with respect to the value in vacuum. At higher temperatures the charmonia states dissociate and the widths of both decay processes become vanishing small.
Giannuzzi Floriana
Mannarelli Massimo
No associations
LandOfFree
Decay widths of charmonia in a hot equilibrated medium does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Decay widths of charmonia in a hot equilibrated medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decay widths of charmonia in a hot equilibrated medium will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-124186