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arXiv 0912.1349hep-ph
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CP在B到K* l+ l-衰变中违反可观测量的新物理范围

New physics reach of CP violating observables in the decay B to K* l+ l-

U. Egede, T. Hurth, J. Matias, M. Ramon, W. Reece

摘要:

我们讨论的理论和实验准备的间接新的物理搜索使用罕见的衰变B到K*0(到K π)l+ l-专注于CP违反可观的。新物理效应和强子不确定性的分离是在新物理研究中使用味观测量的关键问题。我们的分析是基于QCD因式分解和软共线有效理论,并严格审查通过详细的误差分析,由于尺度依赖性,形状因子,和其他输入参数的新的物理达到这些可观的;我们还探讨了实验的灵敏度在LHCb使用全角度拟合方法;最后,我们使未知的Lambda/mb修正的影响体现在我们的理论预测。

英文摘要:

We discuss theoretical and experimental preparations for an indirect new physics search using the rare decay B to K*0 (to K pi) l+ l- focusing on CP violating observables. The separation of new physics effects and hadronic uncertainties is the key issue when using flavour observables in a new-physics search. Our analysis is based on QCD factorization and soft-collinear effective theory and critically examines the new physics reach of those observables via a detailed error analysis due to scale dependences, form factors, and other input parameters; we also explore the experimental sensitivities at LHCb using a full-angular fit method; finally, we make the impact of the unknown Lambda/mb corrections manifest in our theoretical predictions.

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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