Finite Temperature Pion Scattering to one-loop in Chiral Perturbation Theory
High Energy Physics - Phenomenology
2008-11-26 v2
Abstract
We present the pion-pion elastic scattering amplitude at finite temperature to one-loop in Chiral Perturbation Theory. The thermal scattering amplitude properly defined allows to generalize the perturbative unitarity relation to the case. Our result provides a model independent prediction of an enhanced pion-pion low-energy phase shift with the temperature and it has physical applications within the context of Relativistic Heavy Ion Collisions.
Cite
@article{arxiv.hep-ph/0203134,
title = {Finite Temperature Pion Scattering to one-loop in Chiral Perturbation Theory},
author = {A. Gomez Nicola and F. J. LLanes-Estrada and J. R. Pelaez},
journal= {arXiv preprint arXiv:hep-ph/0203134},
year = {2008}
}
Comments
11 pages, 2 figures. Some references and clarifying comments added and new figures included. Final version to appear in Physics Letters B