The equation of state in lattice QCD: with physical quark masses towards the continuum limit | Zendy

Yasumichi Aoki | Zendy; Zoltán Fodor | Zendy; S. D. Katz | Zendy; Kálmán Szabó | Zendy

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The equation of state in lattice QCD: with physical quark masses towards the continuum limit

Author(s) -

Yasumichi Aoki,

Zoltán Fodor,

S. D. Katz,

Kálmán Szabó

Publication year - 2006

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2006/01/089

Subject(s) - physics , quark , quantum chromodynamics , strange quark , particle physics , lattice qcd , lattice (music) , quantum electrodynamics , acoustics

The equation of state of QCD at vanishing chemical potential as a function oftemperature is determined for two sets of lattice spacings. Coarser latticeswith temporal extension of N_t=4 and finer lattices of N_t=6 are used. Symanzikimproved gauge and stout-link improved staggered fermionic actions are applied.The results are given for physical quark masses both for the light quarks andfor the strange quark. Pressure, energy density, entropy density, quark numbersusceptibilities and the speed of sound are presented.Comment: 14 pages, 9 figures. Version published in JHEP: discussions added in Sects. 1, 2. Fig. 1 changed and a new figure for the interaction measure added. Information on statistics added in Table 1. Raw values of the pressure added in Table 3. A few references adde

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