Two-loop current-current operator contribution to the non-leptonic QCD penguin amplitude

被引：33

作者：

Bell, G. ^{[1
]}

Beneke, M. ^{[2
]}

Huber, T. ^{[3
]}

Li, Xin-Qiang ^{[4
,5
,6
]}

机构：

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

[2] Tech Univ Munich, Phys Dept T31, D-85748 Garching, Germany

[3] Univ Siegen, Nat Wissensch Tech Fak, Theoret Phys 1, D-57068 Siegen, Germany

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

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

[6] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China

来源：

PHYSICS LETTERS B | 2015年 / 750卷

关键词：

NNLO VERTEX CORRECTIONS; B-DECAYS; SPECTATOR SCATTERING; PI-PI; FACTORIZATION; NLO;

D O I：

10.1016/j.physletb.2015.09.037

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The computation of direct CF asymmetries in charmless B decays at next-to-next-to-leading order (NNLO) in QCD is of interest to ascertain the short-distance contribution. Here we compute the two-loop penguin contractions of the current-current operators Q(1,2) and provide a first estimate of NNLO CP asymmetries in penguin-dominated b -> s transitions. (C) 2015 The Authors. Published by Elsevier B.V.

引用

页码：348 / 355

页数：8

共 27 条

[1] Anastasiou C, 2004, J HIGH ENERGY PHYS
[2] [Anonymous], ARXIV14127515HEPEX
[3] NNLO vertex corrections in charmless hadronic B decays:: Imaginary part
Bell, Guido
[J]. NUCLEAR PHYSICS B, 2008, 795 (1-2) : 1 - 26
[4] Master integrals for the two-loop penguin contribution in non-leptonic B-decays
Bell, Guido
Huber, Tobias
[J]. JOURNAL OF HIGH ENERGY PHYSICS, 2014, (12):
[5] NNLO vertex corrections in charmless hadronic B decays: Real part
Bell, Guido
[J]. NUCLEAR PHYSICS B, 2009, 822 (1-2) : 172 - 200
[6] QCD factorization for exclusive non-leptonic B-meson decays:: general arguments and the case of heavy-light final states
Beneke, M
Buchalla, G
Neubert, M
Sachrajda, CT
[J]. NUCLEAR PHYSICS B, 2000, 591 (1-2) : 313 - 418
[7] Spectator scattering at NLO in non-leptonic B decays:: Leading penguin amplitudes
Beneke, M.
Jaeger, S.
[J]. NUCLEAR PHYSICS B, 2007, 768 (1-2) : 51 - 84
[8] Spectator scattering at NLO in non-leptonic B decays:: Tree amplitudes
Beneke, M.
Jager, S.
[J]. NUCLEAR PHYSICS B, 2006, 751 (1-2) : 160 - 185
[9] QCD factorization for B→PP and B→PV decays
Beneke, M
Neubert, M
[J]. NUCLEAR PHYSICS B, 2003, 675 (1-2) : 333 - 415
[10] NNLO vertex corrections to non-leptonic B decays: Tree amplitudes
Beneke, M.
Huber, T.
Li, Xin-Qiang
[J]. NUCLEAR PHYSICS B, 2010, 832 (1-2) : 109 - 151

← 1 2 3 →