Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-10-10
Nucl.Phys. A774 (2006) 619-622
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 6 EPS-files, talk presented at Quark Matter 2005, Budapest
Scientific paper
10.1016/j.nuclphysa.2006.06.099
We analyze fluctuations of quark number and electric charge, in 2-flavour QCD at finite temperature and vanishing net baryon number density. In the hadronic phase we find that an enhancement of charge fluctuations arises from contributions of doubly charged hadrons to the thermodynamics. The rapid suppression of fluctuations seen in the high temperature phase suggests that in the QGP quark number and electric charge are predominantly carried by quasi-particles with the quantum numbers of quarks.
Ejiri Shinji
Karsch Frithjof
Redlich Krzysztof
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