在$Λ_b \longrightarrow Λ_c(\to Λπ) \ell ν$衰变模式中寻找新物理学的影响
Looking for the effects of New Physics in the $Λ_b \longrightarrow Λ_c(\to Λπ) \ell ν$ decay mode
摘要:
寻找新物理学在低能尺度上的效应的最实用的方法之一是研究各种衰变模式的详细角分布,特别是那些基于$b\to c\ell\bar ν_\ell$的衰变模式。在本文中,我们专注于$Λ_b \longrightarrow Λ_c(\to Λπ) \ell ν$在一个通用的有效的理论设置,其中,除了标准模型,我们允许所有可能的协变维6有效运营商捕捉的贡献,在高能量尺度,超出了标准模型。我们列出了一些可观测的数据,它们可以作为诊断工具来检查新物理学的存在,并区分它的各种场景。我们还简要地评论了$Λ_c \to Λlν$。
英文摘要:
One of the most pragmatic ways to look for the effects of New Physics at low energy scales is to study a detailed angular distribution of various decay modes, and in particular those based on $b\to c\ell\bar ν_\ell$. In this paper we focus onto $Λ_b \longrightarrow Λ_c(\to Λπ) \ell ν$ in a generic effective theory setup in which, besides the Standard Model, we allow for all the possible covariant dimension-six effective operators capturing the contributions arising at high energy scales, beyond the Standard Model. We list a number of observables that could be used as a diagnostic tool to check for the presence of New Physics and to discriminate among its various scenarios. We also briefly comment on $Λ_c \to Λlν$.
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。