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Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 32: Flavourphysik (Theorie)

T 32.7: Talk

Monday, February 29, 2016, 18:15–18:30, VMP8 SR 106

Corrections to the Bag Factor in B-B-MixingAndrey G. Grozin1, •Rebecca Klein2, Thomas Mannel2, and Alexei A. Pivovarov21BINP, Novosibirsk — 2Universität Siegen

B-B-Mixing is parameterized by the matrix elements of local operators Oi. For the computation of these matrix elements a bag factor Bi can be introduced ⟨B|Oi|B⟩=BiB|Oi|Bfac, which is unity in naive factorization. Any deviation from unity describes the accuracy of the naive factorization prescription. Corrections to Bi emerge from QCD radiative corrections and from nonperturbative contributions at order 1/mb. We present the current status of these corrections to Bi.

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