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Meson correlation function and screening mass in thermal QCD

100%

Czerski P.

Open Physics

2012

tom 10

nr 2

342-348

Analytical results for the spatial dependence of the correlation functions for all meson excitations in perturbative Quantum Chromodynamics, the lowest order, are calculated. The meson screening mass is obtained as a large distance limit of the correlation function. Our analysis leads to a better understanding of the excitations of Quark Gluon Plasma at sufficiently large temperatures and may be of relevance for future numerical calculations with fully interacting Quantum Chromodynamics.

Survival of B c mesons in a hot plasma within a potential model

88%

Alberico W. , Carignano S. , Czerski P. , Pace A. , Nardi M. , Ratti C.

Open Physics

2014

tom 12

nr 11

780-784

We extend a previous work on the study of heavy charmonia and bottomonia in a deconfined quark-gluon plasma by considering the B c family of mesons. With the introduction of this bound state of a charm and a beauty quark, we investigate at finite temperature the behavior of the quarkonium, in an energy region between the ψ and the Y states.