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Electroweak penguin contributions to non-leptonic δf = 1 decays at NNLO

Abstract:

We calculate the θ(αs) corrections to the Z°-penguin and electroweak box diagrams relevant for non-leptonic ΔF = 1 decays with F = S,B. This calculation provides the complete O(αwαs) and θ(αwαssin2θwm2t) corrections (αw = α/sin2θw) to the Wilson coefficients of the electroweak penguin four quark operators relevant for non-leptonic K- and B-decays. We argue that this is the dominant part of the next-next-to-leading (NNLO) contributions to these coefficients. Our results allow us to reduce cons...

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Authors


Gambino, P More by this author
Haisch, UA More by this author
Journal:
Nuclear Physics B
Volume:
570
Issue:
1-2
Pages:
117-154
Publication date:
2000-03-20
DOI:
ISSN:
0550-3213
URN:
uuid:67d76ea7-4e17-45d2-861d-393f6c7331fc
Source identifiers:
159497
Local pid:
pubs:159497
Language:
English

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