Multiloop Corrections to Rare B Decays

被引：1

作者：

Misiak, Mikolaj ^{[1
,2
]}

机构：

[1] CERN, Dept Theoret Phys, CH-1211 Geneva 23, Switzerland

[2] Univ Warsaw, Fac Phys, Inst Theoret Phys, PL-02093 Warsaw, Poland

来源：

NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS | 2017年 / 285卷

关键词：

B-physics; radiative corrections; X-S-GAMMA; (B)OVER-BAR;

D O I：

10.1016/j.nuclphysbps.2017.03.012

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Multiloop calculations that matter for low-energy flavour physics are of two generic types. The first-type ones allow us to determine the Wilson coefficients in the effective theory of interest. At the technical level, they can be reduced to evaluating tadpole diagrams. The second-type ones are necessary to express physical observables in terms of the Wilson coefficients. Here, after summarizing the Wilson coefficient status, I am going to describe several recent perturbative calculations that have contributed to a reduction of theoretical uncertainties in the branching ratios of B-s,B-d -> l(+)l(-) and (B) over bar -> X-s,X-d y.

引用

页码：63 / 68

页数：6

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