Operator relations for SU(3) breaking contributions to K and K* distribution amplitudes
نویسندگان
چکیده
منابع مشابه
Operator Relations for SU(3) Breaking Contributions to K and K Distribution Amplitudes
We derive constraints on the asymmetry a1 of the momentum fractions carried by quark and antiquark in K and K mesons in leading twist. These constraints follow from exact operator identities and relate a1 to SU(3) breaking quark-antiquark-gluon matrix elements which we determine from QCD sum rules. Comparing our results to determinations of a1 from QCD sum rules based on correlation functions o...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2006
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2006/02/034