Non-leptonic B-decays at two loops in QCD Factorization

被引：0

作者：

Bell, Guido ^{[1
]}

Beneke, Martin ^{[2
]}

Huber, Tobias ^{[1
]}

Li, Xin-Qiang ^{[3
,4
]}

机构：

[1] Univ Siegen, Nat Wissensch Tech Fak, Walter Flex Str 3, D-57068 Siegen, Germany

[2] Tech Univ Munich, Phys Dept T31, James Franck Str 1, D-85748 Garching, Germany

[3] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China

[4] Cent China Normal Univ, Key Lab Quark & Lepton Phys, MOE, Wuhan 430079, Hubei, Peoples R China

来源：

14TH INTERNATIONAL SYMPOSIUM ON RADIATIVE CORRECTIONS, RADCOR2019 | 2020年

基金：

中国国家自然科学基金;

关键词：

NNLO VERTEX CORRECTIONS; SPECTATOR SCATTERING; SEMILEPTONIC-B; PI-PI; NLO;

D O I：

暂无

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the calculation of the two-loop penguin amplitudes in non-leptonic B decays in the framework of QCD factorization. We discuss the computation of this genuine two-loop, two-scale problem and provide details on the matching from QCD onto SCET, the evaluation of the master integrals, and the convolution of the hard scattering kernels with the light-cone distribution amplitude of the light meson. Preliminary results on the size of the two-loop correction are given.

引用

页数：11

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