CHIRAL PERTURBATION-THEORY CORRECTIONS TO KL-]-GAMMA-GAMMA

Publication Date

1986

Journal or Book Title

NUCLEAR PHYSICS B

Abstract

In the calculation of KL0→γγ to first order in SU(3) breaking, one must include not only η-η′ mixing but also the first-order corrections to the SU(3) relations for the K→η and η→γγ transitions. We calculate the leading corrections to these processes at one loop in chiral perturbation theory. Although not large in themselves, they can have potentially large effects in K→γγ due to the cancellations among the leading SU(3) invariant terms. We also comment on corresponding effects on the dispersive part of the KL− KS mass differences.

Comments

Published version is located at http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVC-472T638-2GJ&_user=1516330&_coverDate=12%2F31%2F1986&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1524445820&_rerunOrigin=google&_acct=C000053443&_version=1&_urlVersion=0&_userid=1516330&md5=4700b00dc337ebb4f7e1ed66568ccd28&searchtype=a

Pages

651-660

Volume

277

Issue

3-4

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