Article
The leading chiral electromagnetic correction to the nonleptonic Delta I=3/2 amplitude in kaon decays
PHYSICS LETTERS B
Publication Date
1999
Abstract
In kaon decay, electromagnetic radiative corrections can generate shifts in the apparent ΔI=3/2 amplitude of order αA0/A2not, vert, similar22α. In order to know the true ΔI=3/2 amplitude for comparison with lattice calculations and phenomenology, one needs to subtract off this electromagnetic effect. We provide a careful estimate of the leading electromagnetic shift in the chiral expansion of the amplitude, which shows that it is smaller than naive expectations, with a fractional shift of δA2(em)/A2=−0.016±0.01.
Disciplines
Comments
This is the pre-published version which is collected from arXiv. The published version is at
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVN-3W3N17R-16&_user=1516330&_coverDate=03%2F18%2F1999&_rdoc=34&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info%28%23toc%235539%231999%23995499998%2381112%23FLA%23display%23Volume%29&_cdi=5539&_sort=d&_docanchor=&_ct=42&_acct=C000053443&_version=1&_urlVersion=0&_userid=1516330&md5=b763f4bfbc8288f6f8549d989e7c24f1&searchtype=a
Pages
241-249
Citation Information
V Cirigliano, JF Donoghue and Eugene Golowich. "The leading chiral electromagnetic correction to the nonleptonic Delta I=3/2 amplitude in kaon decays" PHYSICS LETTERS B Vol. 450 Iss. 1-3 (1999) Available at: http://works.bepress.com/eugene_golowich/51/