Extending Chiral Perturbation Theory with an Isosinglet Scalar
High Energy Physics - Phenomenology
2017-02-15 v2 High Energy Physics - Lattice
High Energy Physics - Theory
Abstract
We augment the chiral Lagrangian by an isosinglet scalar and compute the one-loop radiative corrections to the pion mass and decay constant, as well as the scalar mass. The calculations are carried out for different patterns of chiral symmetry breaking of immediate relevance for phenomenology and lattice investigations. By construction our results encompass several interesting limits, ranging from the dilaton to the linear sigma model.
Keywords
Cite
@article{arxiv.1610.02904,
title = {Extending Chiral Perturbation Theory with an Isosinglet Scalar},
author = {Martin Hansen and Kasper Langaeble and Francesco Sannino},
journal= {arXiv preprint arXiv:1610.02904},
year = {2017}
}
Comments
18 pages, 2 figures, accepted version for Physical Review D