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arXiv 0904.0957hep-ph
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关于核中μ-> e转换的模型分辨本领

On the model discriminating power of mu -> e conversion in nuclei

Vincenzo Cirigliano, Ryuichiro Kitano, Yasuhiro Okada, Paula Tuzon

摘要:

我们评估了模型的鉴别能力的联合唯象分析的mu -> e γ和mu -> e转换不同的目标核,包括当前的强子不确定性。我们发现,理论的不确定性可以大大减少,通过使用输入从格点量子色动力学,并不构成一个限制因素,在判别模型中,一个或最多两个基本运营商(偶极,标量,矢量)提供的主要来源轻子味违反。我们的研究结果表明,一个现实的歧视之间的潜在机制需要在5%的水平(两个轻核)或在20%的水平(一个轻,一个重核)的转换率的比率的测量。我们也在超对称模型的背景下说明了这些主要结论。

英文摘要:

We assess the model discriminating power of a combined phenomenological analysis of mu -> e gamma and mu -> e conversion on different target nuclei, including the current hadronic uncertainties. We find that the theoretical uncertainties can be largely reduced by using input from lattice QCD and do not constitute a limiting factor in discriminating models where one or at most two underlying operators (dipole, scalar, vector) provide the dominant source of lepton flavor violation. Our results show that a realistic discrimination among underlying mechanisms requires a measurement of the ratio of conversion rates at the 5% level (two light nuclei) or at the 20% level (one light and one heavy nucleus). We have illustrated these main conclusions also in the context of a supersymmetric model.

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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