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Phys. Rev. D 80, 051502(R) (2009) [5 pages]

High-precision thermodynamics and Hagedorn density of states

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Harvey B. Meyer
Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

Received 28 May 2009; published 30 September 2009

We compute the entropy density of the confined phase of QCD without quarks on the lattice to very high accuracy. The results are compared to the entropy density of free glueballs, where we include all the known glueball states below the two-particle threshold. We find that an excellent, parameter-free description of the entropy density between 0.7Tc and Tc is obtained by extending the spectrum with the exponential spectrum of the closed bosonic string.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.80.051502
DOI:
10.1103/PhysRevD.80.051502
PACS:
12.38.Gc, 11.25.Pm, 12.38.Mh, 12.39.Mk