One-loop Chiral Perturbation Theory with two fermion representations
High Energy Physics - Phenomenology
2016-07-13 v2 High Energy Physics - Lattice
Abstract
We develop Chiral Perturbation Theory for chirally broken theories with fermions in two different representations of the gauge group. Any such theory has a non-anomalous singlet symmetry, yielding an additional Nambu-Goldstone boson when spontaneously broken. We calculate the next-to-leading order corrections for the pseudoscalar masses and decay constants, which include the singlet Nambu-Goldstone boson, as well as for the two condensates. The results can be generalized to more than two representations.
Keywords
Cite
@article{arxiv.1605.07738,
title = {One-loop Chiral Perturbation Theory with two fermion representations},
author = {Thomas DeGrand and Maarten Golterman and Ethan T. Neil and Yigal Shamir},
journal= {arXiv preprint arXiv:1605.07738},
year = {2016}
}
Comments
RevTex, 21 pages. v2: minor changes, added publication info