The pion mass in finite volume to two loops
High Energy Physics - Lattice
2007-05-23 v1
Abstract
We evaluate the pion mass in finite volume to two loops within Chiral Perturbation Theory. The results are compared with a recently proposed extension of the asymptotic formula of Luscher. We find that contributions, which were neglected in the latter, are numerically very small at the two-loop level.
Cite
@article{arxiv.hep-lat/0509078,
title = {The pion mass in finite volume to two loops},
author = {Christoph Haefeli},
journal= {arXiv preprint arXiv:hep-lat/0509078},
year = {2007}
}
Comments
6 pages, 2 figures, Talk presented at Lattice 2005 (Hadron spectrum and quark masses)