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arXiv 1202.0398hep-ph
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族非普适Z'模型中的λ_b -> λ l+ l-衰变

Lambda_b -> Lambda l+ l- decay within family non-universal Z' model

T. M. Aliev, M. Savci

摘要:

本文在族非普适Z'模型的框架下对罕见的“Lambda_b -> Lambda l+ l-”衰变进行了全面的分析。结果表明,Z'对衰变宽度有很大的贡献。与标准模型结果相比,前后不对称和alpha_theta参数的零位置向左移动。所获得的结果可以在不久的将来在LHC-b上进行测试。

英文摘要:

We perform a comprehensive analysis of the rare "Lambda_b -> Lambda l+ l-" decay in the framework of family non-universal Z' model. It is shown that Z' gives considerable contribution to the decay width. Zero positions of the forward-backward asymmetry and alpha_theta parameter are shifted to the left compared to the Standard Model result. The obtained results could be tested in near future at LHC-b.

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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