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.
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页数：11
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