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题名: CP asymmetries in B ->phi K-S and B ->eta
作者: Cheng, JF ;  Huang, CS ;  Wu, XH
刊名: NUCLEAR PHYSICS B
出版日期: 2004
卷号: 701, 期号:40910, 页码:54-86
关键词: QCD FACTORIZATION ;  STANDARD MODEL ;  MESON DECAYS ;  EXTRACTION ;  VIOLATIONS ;  QUARK ;  FCNC
学科分类: Physics
通讯作者: Cheng, JF , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China.
部门归属: Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea; Peking Univ, Dept Phys, Beijing 100871, Peoples R China
英文摘要: We study the B --> phiK(S) and B --> eta'K-S decays in MSSM by calculating hadronic matrix elements of operators with QCD factorization approach and including neutral Higgs boson (NHB) contributions. We calculate the Wilson coefficients of operators including the new operators which are induced by NHB penguins at LO using the MIA with double insertions. We calculate the as order hadronic matrix elements of the new operators for B --> phiK(S) and B --> eta'K-S. It is shown that the re-cent experimental results on the time-dependent CP asymmetries in B --> phiK(S) and B --> eta'K-S, Sphi(Ks) is negative and S-eta'Ks is positive, which cannot be explained in SM, can be explained in MSSM if there are flavor non-diagonal squark mass matrix elements of 2nd and 3rd generations whose size satisfies all relevant constraints from known experiments (B --> X(s)gamma, Bs --> mu(+)mu(-), B --> X(s)mu(+) mu(-), B --> X(s)g, DeltaM(s), etc.). In particular, we find that one can explain the experimental results with a flavor non-diagonal mass insertion of chirality LL or LR when alphas corrections of hadronic matrix elements of operators are included, in contrast with the claim in the literature. At the same time, the branching ratios for the two decays can also be in agreement with experimental measurements. (C) 2004 Elsevier B.V. All rights reserved.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13967
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Cheng, JF,Huang, CS,Wu, XH. CP asymmetries in B ->phi K-S and B ->eta[J]. NUCLEAR PHYSICS B,2004,701(40910):54-86.
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