The pressure of strong coupling lattice QCD with heavy quarks, the hadron resonance gas and the large N limit

Langelage J, Philipsen O (2010)
JHEP 2010(4): 055.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
In this paper we calculate the pressure of pure lattice Yang-Mills theories and lattice QCD with heavy quarks by means of strong coupling expansions. Dynamical fermions are introduced with a hopping parameter expansion, which also allows for the incorporation of finite quark chemical potential. We show that in leading orders the results are in full agreement with expectations from the hadron resonance gas model, thus validating it with a first principles calculation. For pure Yang-Mills theories we obtain the corresponding ideal glueball gas, in QCD with heavy quarks our result equals that of an ideal gas of mesons and baryons. Another finding is that the Yang-Mills pressure in the large N limit is of order similar to N-0 to the calculated orders, when the inverse 't Hooft coupling is used as expansion parameter. This property is expected in the confined phase, where our calculations take place.
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JHEP
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2010
Zeitschriftennummer
4
Artikelnummer
055
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Langelage J, Philipsen O. The pressure of strong coupling lattice QCD with heavy quarks, the hadron resonance gas and the large N limit. JHEP. 2010;2010(4): 055.
Langelage, J., & Philipsen, O. (2010). The pressure of strong coupling lattice QCD with heavy quarks, the hadron resonance gas and the large N limit. JHEP, 2010(4), 055. doi:10.1007/JHEP04(2010)055
Langelage, J., and Philipsen, O. (2010). The pressure of strong coupling lattice QCD with heavy quarks, the hadron resonance gas and the large N limit. JHEP 2010:055.
Langelage, J., & Philipsen, O., 2010. The pressure of strong coupling lattice QCD with heavy quarks, the hadron resonance gas and the large N limit. JHEP, 2010(4): 055.
J. Langelage and O. Philipsen, “The pressure of strong coupling lattice QCD with heavy quarks, the hadron resonance gas and the large N limit”, JHEP, vol. 2010, 2010, : 055.
Langelage, J., Philipsen, O.: The pressure of strong coupling lattice QCD with heavy quarks, the hadron resonance gas and the large N limit. JHEP. 2010, : 055 (2010).
Langelage, Jens, and Philipsen, Owe. “The pressure of strong coupling lattice QCD with heavy quarks, the hadron resonance gas and the large N limit”. JHEP 2010.4 (2010): 055.

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arXiv: 1002.1507

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