论文标题
$λ_b\toλ（1520）\ ell^+\ ell^ - $衰减的新物理搜索前景
Prospects for New Physics searches with $Λ_b \to Λ(1520)\ell^+\ell^-$ decays
论文作者
论文摘要
我们介绍了$λ_b\ toλ（1520）\ ell^+\ ell^ - $衰减的角度分析的前景。使用在LHCB实验中收集的当前数据集中的预期产量，以及LHCB升级后预见的收益率，提出了灵敏度研究，以确定与Lepton分布相关的角度可观察物的实验精度及其潜力及其鉴定新物理学。低dilepton不变质量的前向后的Lepton不对称是特别有希望的。当前异常在$ b \ to s \ ell^+\ ell^ - $衰减中所偏爱的NP方案可以与SM案例区分开，并且在运行3和LHCB实验的升级2之间收集的数据。
We present the prospects of an angular analysis of the $Λ_b \to Λ(1520)\ell^+\ell^-$ decay. Using the expected yield in the current dataset collected at the LHCb experiment, as well as the foreseen ones after the LHCb upgrades, sensitivity studies are presented to determine the experimental precision on angular observables related to the lepton distribution and their potential to identify New Physics. The forward-backward lepton asymmetry at low dilepton invariant mass is particularly promising. NP scenarios favoured by the current anomalies in $b\to s\ell^+\ell^-$ decays can be distinguished from the SM case with the data collected between the Run 3 and the Upgrade 2 of the LHCb experiment.
