ELECTROMAGNETIC SELF-ENERGIES OF PSEUDOSCALAR MESONS AND DASHEN THEOREM

Publication Date

1993

Journal or Book Title

PHYSICAL REVIEW D

Abstract

The calculation of the electromagnetic mass shifts of π, K mesons is studied using a model incorporating chiral symmetry and vector dominance. Significant SU(3) breaking to Dashen's theorem is found, allowing a resolution of the long-standing discrepancy between the quark-mass ratio (md-mu)/ms found from η→3π decay and that from the K+-K0 mass difference.

Comments

Published version is located at http://prd.aps.org/abstract/PRD/v47/i5/p2089_1

Pages

2089-2097

Volume

47

Issue

5

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