The bosonization of the electroweak penguin operators

Fabbrichesi, M. ; Lashin, Elsayed 


Abstract


We give the complete O(p 2 ) bosonization of the electroweak penguin operators Q 7,8 and compare the result with that of the gluon penguin operators Q 5,6 . We find that, in addition to the usual (constant and current-current) parts, there are three new terms not discussed previously in the literature. Two of these are present in the factorization approximation and should be included in the standard definition of the B 7,8 -factors. The impact of these corrections on the direct CP-violating parameter ε′/ε is briefly discussed.


Other data

Issue Date 1996
Publisher Elsevier
Journal Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 
URI http://research.asu.edu.eg/123456789/760
DOI 10.1016/0370-2693(96)01082-9


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