(Non)-perturbative properties of high-T QCD from lattice ... - Physics
(Non)-perturbative properties of high-T QCD from lattice ... - Physics
(Non)-perturbative properties of high-T QCD from lattice ... - Physics
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Christian Schmidt (for RBC-Bielefeld), Lattice 2008F. Karsch, x<strong>QCD</strong>, July 2008 – p. 21/32Hadronic fluctuations and the <strong>QCD</strong> critical point 8•Baryon number fluctuations(µ B = 0)1.22c B 2 = 〈 B 2〉 24c B 4 = 〈 B 4〉 − 3 〈 B 2〉 2110SB120.88n f =2+1, m =220 MeV0.6n f =2+1, m =220 MeV6n f =2, m =770 MeVfilled: nt=40.4n f =2, m =770 MeV4open: nt=60.2T[MeV ]filled: nt=4open: nt=60150 200 250 300 350 400 4502T[MeV ]0150 200 250 300 350 400 450SB21.510.512 cB 4c B 2T[MeV ]n f =2+1, m =220 MeV=n f =2, m =770 MeVResonance gas〈B4 〉 − 3 〈 B 2〉 2〈B 2 〉filled: nt=4open: nt=60150 200 250 300 350SB→ fluctuations increase withdecreasing mass→ fluctuations increase overthe resonance gas valuered: RBC-Bielefeld, preliminaryblue: PRD71:054508,2005.
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