The speed of cool soft pions
High Energy Physics - Phenomenology
2016-08-25 v2
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ph/9803472,
title = {The speed of cool soft pions},
author = {J. M. Martinez Resco and M. A. Valle Basagoiti},
journal= {arXiv preprint arXiv:hep-ph/9803472},
year = {2016}
}
Comments
10 pages, 2 figures.A few typos corrected,some comments added.Version to be published in Phys. Rev. D