Pion gas viscosity at low temperature and density

Details Pion gas viscosity at low temperature and density Pion gas viscosity at low temperature and density

2001-12-21

arxiv.org/abs/hep-ph/0112299v1

Phys.Rev. D65 (2002) 096011

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 4 figures. RevTeX 4

Scientific paper

10.1103/PhysRevD.65.096011

By using Chiral Perturbation Theory and the Uehling-Uhlenbeck equation we compute the viscosity of a pion gas, in the low temperature and low density regime, in terms of the temperature, and the pion fugacity. The viscosity turns out to be proportional to the squared root of the temperature over the pion mass. Next to leading corrections are proportional to the temperature over the pion mass to the 3/2.

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