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Quark number susceptibilities from resummed perturbation theory

Jens O. Andersen
(
- Norwegian U. Sci. Tech.
)
,
Sylvain Mogliacci
(
- Bielefeld U.
)
,
Nan Su
(
- Bielefeld U.
)
,
Aleksi Vuorinen
(
- Bielefeld U.
)

Oct, 2012

6 pages

Published in:

Phys.Rev.D 87 (2013) 7, 074003

Published: Apr 3, 2013

e-Print:

1210.0912 [hep-ph]

DOI:

10.1103/PhysRevD.87.074003

Report number:

BI-TP-2012-41

View in:

ADS Abstract Service

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Abstract: (APS)

We evaluate the second and fourth order quark number susceptibilities in hot QCD using two variations of resummed perturbation theory. On one hand, we carry out a one-loop calculation within hard-thermal-loop perturbation theory, and on the other hand perform a resummation of the four-loop finite density equation of state derived using a dimensionally reduced effective theory. Our results are subsequently compared with recent high precision lattice data, and their agreement thoroughly analyzed.

Note:

5 pages, 3 figures. v3: Figures updated, published in Phys. Rev. D

12.38.Cy
12.38.Mh
fermion number: susceptibility
equation of state
perturbation theory
resummation
hard thermal loop approximation
quantum chromodynamics: thermodynamics
dimensional reduction
lattice

References(43)

Figures(3)

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