Erratum:b→stransitions: A new frontier for indirect supersymmetry searches [Phys. Rev. D67, 075016 (2003)]
Erratum:b→stransitions: A new frontier for indirect supersymmetry searches [Phys. Rev. D67, 075016 (2003)]
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勘误表：b→转变：间接超对称搜索的新领域 [Phys. Rev. D67, 075016 (2003)]
DOI：
10.1103/physrevd.68.079901
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发表时间：
2003
影响因子：
5
通讯作者：
L. Silvestrini
中科院分区：
文献类型：
--
作者：
M. Ciuchini;E. Franco;A. Masiero;L. Silvestrini
本么正三角形拟合的基本输入是s→ d和B→ d跃迁过程，与SM完全一致。然而，涉及B→ s跃迁的大多数现象仍然在很大程度上未被探索，因此，尽管B→ X s γ的实验和理论取得了巨大的进展，B→ s现象学仍然构成了新的物理表现的地方。在一般最小超对称标准模型（MSSM）中，我们系统地研究了CP守恒和超对称破坏（SUSY）对B→ s过程的贡献。我们考虑了Δ B= 2和Δ B= 1过程中包含次首阶QCD修正和格点强子矩阵元的胶子交换贡献。我们考虑了涉及B→ s跃迁过程（B→ X s γ，B→ X s l+ l-和B s-B s质量差Δ M s的下限）的所有可用实验信息。本文研究了目前和不久的将来正在研究的相关观测量之间的相关性：B→ φ Ks，B s→ J/J φ，B→ Xs γ中的Δ Ms和CP破坏量。特别地，我们讨论了BaBar和贝儿最近关于B→ φ KS衰变中随时间变化的CP不对称性的数据，这些数据表明偏离了SM的预期。我们的研究结果表明，涉及B→ s跃迁的过程是一个极好的机会，以限制不同的MSSM实现，更重要的是，他们提供了具体的前景，展示超对称信号在B工厂和强子对撞机，尽管所有过去的挫折在口味改变中性电流搜索新的物理提示。
The present unitarity triangle fit, whose essential input is represented by the s→ d and b→ d transition processes, fully agrees with the SM. However, most of the phenomena involving b→ s transitions are still largely unexplored and hence b→ s phenomenology still constitutes a place for new physics manifestations, in spite of the tremendous experimental and theoretical progress on B→ X s γ. We perform a systematic study of the CP conserving and violating supersymmetry (SUSY) contributions to b→ s processes in a generic minimal supersymmetric standard model (MSSM). We consider gluino exchange contributions including next-to-leading order QCD corrections and lattice hadronic matrix elements for Δ B= 2 and Δ B= 1 processes. We take into account all available experimental information on processes involving b→ s transitions (B→ X s γ, B→ X s l+ l− and the lower bound on the B s− B s mass difference Δ M s). We study the correlations among the relevant observables under scrutiny at present or in a not too far future: Δ M s and the amount of CP violation in B→ φ K s, B s→ J/ψ φ, B→ X s γ. In particular we discuss the recent data by BaBar and BELLE on the time-dependent CP asymmetry in the decay B→ φ K S which suggest a deviation from the SM expectation. Our results show that the processes involving b→ s transitions represent a splendid opportunity to constrain different MSSM realizations, and, even more important, that they offer concrete prospects to exhibit SUSY signals at B factories and hadron colliders in spite of all the past frustration in flavor changing neutral current searches of new physics hints.