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

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成果类型:
期刊论文
作者:
Bell, G.;Beneke, M.;Huber, T.;Li, Xin-Qiang*
通讯作者:
Li, Xin-Qiang
作者机构:
[Bell, G.] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England.
[Beneke, M.] Tech Univ Munich, Phys Dept T31, D-85748 Garching, Germany.
[Huber, T.] Univ Siegen, Nat Wissensch Tech Fak, Theoret Phys 1, D-57068 Siegen, Germany.
[Li, Xin-Qiang] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China.
[Li, Xin-Qiang] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China.
通讯机构:
[Li, Xin-Qiang] C
Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China.
语种:
英文
期刊:
Physics Letters B
ISSN:
0370-2693
年:
2015
卷:
750
页码:
348-355
基金类别:
NNSFC of ChinaNational Natural Science Foundation of China (NSFC) [11005032, 11435003]; DFG Forschergruppe FOR 1873German Research Foundation (DFG); DFGGerman Research Foundation (DFG)European Commission [Sonderforschungsbereich/Transregio 9]; University Research Fellowship by the Royal Society; SRF for ROCS, SEMScientific Research Foundation for the Returned Overseas Chinese Scholars; SKLTP, ITP, CAS [Y4KF081CJ1]; CCNU from the colleges' basic research and operation of MOEMinistry of Education, Singapore [CCNU15A02037]
机构署名:
本校为通讯机构
院系归属:
物理科学与技术学院
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...

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