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arXiv 0905.1289hep-ph
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B --> K* mu+ mu-:SM及以上

B --> K* mu+ mu-: SM and Beyond

Aoife Bharucha

摘要:

稀有衰变B --> K* mu+ mu-被认为是LHCb的黄金通道,因为K* 的偏振允许精确的角度重建,从而产生许多可观测量,这些可观测量为标准模型及其扩展提供了新的重要测试。这些角观测量可以用CP守恒量和CP破坏量来表示,我们用光锥上QCD求和规则计算的完整形状因子来研究,包括QCD因子化修正。我们调查的背景下,标准模型和各种新物理模型,特别是最小的希格斯模型与T-宇称和各种MSSM的情况下,确定这些观测量与小到中度的依赖强子量和大的影响新物理。

英文摘要:

The rare decay B --> K* mu+ mu- is considered to be a golden channel for LHCb, as the polarization of the K* allows a precise angular reconstruction resulting in many observables that offer new important tests of the Standard Model and its extensions. These angular observables can be expressed in terms of CP-conserving and CP-violating quantities which we study in terms of the full form factors calculated from QCD sum rules on the light-cone, including QCD factorization corrections. We investigate all observables in the context of the Standard Model and various New Physics models, in particular the Littlest Higgs model with T-parity and various MSSM scenarios, identifying those observables with small to moderate dependence on hadronic quantities and large impact of New Physics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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