论文标题
B衰变中的Lepton风味普遍性的轻棚
A Light shed on Lepton Flavor Universality in B decays
论文作者
论文摘要
在LHCB的半衰减衰变中对异常的后续测量和几个对撞机实验暗示可能违反Lepton风味普遍性的情况，我们对树木和循环$ b $ b $ b $ b \ b \ b \ b \ t $ b的理论基础进行了简短的综述，以及$ b的$ b^+ l^+ l^+ l^+ l^。我们重新审视世界的平均值，以$ r_ {d（d^*）} $，$ r_ {k（k^*）} $，$ r_ {j/ψ} $，以及$ r_ {η_c} $，用于半毛虫的过渡，并在模型中与模型相关的模型中相关的独立框架中的结果，并在模型中提供了结果。如果对LHC运行2的数据的持续评估确认了运行1的测量值，那么每个衰减通道中效应的统计显着性可能会达到5〜 $σ$。对这些测量值的确认很快将是对物理学的第一个显着观察，超出了标准模型，从而对新物理学的理解提供了更广泛的看法。
At the back of succeeding measurements of anomalies in semileptonic decays at LHCb and several collider experiments hinting at the possible violation of lepton flavor universality, we undertake a concise review of theoretical foundations of the tree- and loop-level $b$-hadron decays, $b \to c l ν_l$ and $b \to s l^+ l^-$ along with experimental environments. We revisit the world averages for $R_{D(D^*)}$, $R_{K(K^*)}$, $R_{J/ψ}$, and $R_{η_c}$, for the semileptonic transitions and provide results within the framework of the relativistic independent quark model in addition to the results from model-independent studies. If the ongoing evaluation of the data of LHC Run 2 confirms the measurements of Run 1, then the statistical significance of the effect in each decay channel is likely to reach 5~$σ$. A confirmation of these measurements would soon turn out to be the first remarkable observation of physics beyond the Standard Model providing a wider outlook on the understanding of New Physics.
