362 research outputs found
Progress in Lattice QCD at finite temperature
I review recent developements in lattice QCD at finite temperature, including
the determination of the transition temperature T_c, equation of state and
diffenet static screening lengths. The lattice data suggest that at
temperatures above 1.5T_c the quark gluon plasma can be considered as gas
consisting of quarks and gluons.Comment: Talk presented at 23rd Winter Workshop on Nuclear Dynamics, Latex, 8
pages, 5 figures, uses bigsky2007.sty. Typos corrected, further discussion of
Tc is adde
Progress in Lattice QCD at non-zero temperature and QGP
I review recent progress in lattice QCD at non-zero temperature whith
emphasis on the calculations of equation and the deconfinement as well as the
chiral aspects of the QCD transition at non-zero temperature. I also briefly
discuss meson correlation functions at high temperatures.Comment: To appear in proceedings of Light Cone 2010, June 14-18, 2010
Valencia, Spai
Hadron Resonance Gas with Repulsive Interactions and Fluctuations of Conserved Charges
We discuss the role of repulsive baryon-baryon interactions in a hadron gas
using relativistic virial expansion and repulsive mean field approaches. The
fluctuations of the baryon number as well as strangeness-baryon correlations
are calculated in the hadron resonance gas with repulsive interactions and
compared with the recent lattice QCD results. In particular, we calculate the
difference between the second and fourth order fluctuations and correlations of
baryon number and strangeness, that have been proposed as probes of
deconfinement. We show that for not too high temperatures these differences
could be understood in terms of repulsive interactions.Comment: 12pages, 2 figures, ReVTeX, published version, unexpanded mean field
results adde
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