Comprison of lattice and chiral perturbation theory calculations of pion scattering lengths
Abstract
I compare the lattice calculation of Fukugita et al. for the pion S-wave scattering lengths to the predictions of Chiral Perturbation Theory to two loop accuracy. I comment on the use of this comparison to extract the Chiral Perturbation Theory low energy constants.
- Publication:
-
Physics Letters B
- Pub Date:
- February 1997
- DOI:
- 10.1016/S0370-2693(97)00057-9
- arXiv:
- arXiv:hep-ph/9607205
- Bibcode:
- 1997PhLB..395..289C
- Keywords:
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- High Energy Physics - Phenomenology;
- High Energy Physics - Lattice
- E-Print:
- Plain Latex, 7 pages, 2 figures