The speed of cool soft pions

Details The speed of cool soft pions The speed of cool soft pions

1998-03-27

arxiv.org/abs/hep-ph/9803472v2

Phys.Rev. D58 (1998) 097901

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures.A few typos corrected,some comments added.Version to be published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.58.097901

The speed of cool pions in the chiral limit is analytically computed at low
temperature within the imaginary time formalism to two loop order. This
evaluation shows a logarithmic dependence in the temperature where the scale
within the logarithm is very large compared to the pion decay constant.

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