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Quark Number Susceptibilities from Two-Loop Hard Thermal Loop Perturbation Theory | | Najmul Haque
; Munshi G. Mustafa
; Michael Strickland
; | | Date: |
13 Feb 2013 | | Abstract: | We use the recently obtained two-loop hard thermal loop perturbation theory
thermodynamics functions of a plasma of quarks and gluons to compute second-
and fourth-order quark number susceptibilities. The two-loop hard thermal loop
perturbation theory thermodynamic functions used were obtained in a previous
paper and are reliable in the limit that the ratio of the quark chemical
potential to temperature is small. Taking derivatives of this result, we are
able to obtain (semi-)analytic expressions for the QNS at leading- and
next-to-leading-order in hard thermal loop perturbation theory. We compare the
leading- and next-to-leading-order hard thermal loop perturbation theory
results for the second- and fourth-order quark number susceptibilities with
perturbative quantum chromodynamics calculations, a Polyakov-loop
Nambu-Jona-Lasinio calculation, and lattice quantum chromodynamics results. | | Source: | arXiv, 1302.3228 | | Services: | Forum | Review | PDF | Favorites | |
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