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NNLL QCD contribution of the electromagnetic dipole operator to Gamma(anti-B ---> X(s) gamma)

We present an independent calculation of that part of the O(\alpha_s^2) contribution to the decay width \Gamma(\bar B -> X_s \gamma) which arises from the self-interference term of the electromagnetic dipole operator O_7. Using a different method, we find complete agreement with a previous calcul...

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Detalles Bibliográficos
Autores principales:	Asatrian, H.M., Hovhannisyan, A., Poghosyan, V., Ewerth, T., Greub, C., Hurth, T.
Lenguaje:	eng
Publicado:	2006
Materias:	Particle Physics - Phenomenology
Acceso en línea:	https://dx.doi.org/10.1016/j.nuclphysb.2006.05.026 http://cds.cern.ch/record/944800

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