Master integrals for the two-loop penguin contribution in non-leptonic B-decays

被引：28

作者：

Bell, Guido ^{[1
]}

Huber, Tobias ^{[2
]}

机构：

[1] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England

[2] Univ Siegen, Nat Wissensch Tech Fak, D-57068 Siegen, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2014年 / 12期

关键词：

B-Physics; QCD; Heavy Quark Physics; CP violation; EXPANDING HYPERGEOMETRIC-FUNCTIONS; NNLO VERTEX CORRECTIONS; QCD FACTORIZATION; DIFFERENTIAL-EQUATIONS; SPECTATOR SCATTERING; NUMERICAL EVALUATION; MATHEMATICA PACKAGE; PI-PI; PRECISION; SECDEC;

D O I：

10.1007/JHEP12(2014)129

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：

We compute the master integrals that arise in the calculation of the leading penguin amplitudes in non-leptonic B-decays at two-loop order. The application of differential equations in a canonical basis enables us to give analytic results for all master integrals in terms of iterated integrals with rational weight functions. It is the first application of this method to the case of two different internal masses.

引用

页数：42

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