Publication Date
2001
Journal or Book Title
PHYSICS LETTERS B
Abstract
We reconsider the dispersive evaluation of the weak matrix elements h()I=2|Q7,8|K0i in the chiral limit. The perturbative matching is accomplished fully within the scheme dependence used in the two loop weak OPE calculations. The effects of dimension eight (and higher dimension) operators are fully accounted for. We perform a numerical determination of the weak matrix elements using our dispersive sum rules fortified by constraints from the classical chiral sum rules. A careful assessment of the attendant uncertainties is given.
Pages
245-256
Volume
522
Issue
3-4
Recommended Citation
Cirigliano, V; Donoghue, JF; Golowich, Eugene; and Maltman, K, "Determination of <(pi pi)I=2/ohm 7,8/K0 > in the chiral limit" (2001). PHYSICS LETTERS B. 111.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/111
Comments
This is a pre-published version which is collected from arXiv. The published version is at http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVN-44B2G63-3&_user=1516330&_coverDate=12%2F13%2F2001&_alid=1518233528&_rdoc=1&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5539&_sort=r&_st=13&_docanchor=&view=c&_ct=1&_acct=C000053443&_version=1&_urlVersion=0&_userid=1516330&md5=585d0115f08b4591a24116ec887704c1&searchtype=a