论文标题

调查$ r_d $和$ r_ {d^*} $ ANOMALIES在左右模型中的异常

Investigating $R_D$ and $R_{D^*}$ anomalies in a Left-Right model with an Inverse Seesaw

论文作者

Ezzat, K., Faisel, G., Khalil, S.

论文摘要

我们研究了基于$ su(3)_c \ times su(2)_l \ times su(2)_r \ times _r \ times _ {1)_ {b-l} $的$ su(3)_c \ times su(3)_c \ times su(3)_ {b-l} $的$ r_d $和$ r_d $和$ r_d $和$ r_d $和$ r_d $和$ r_d $和$ r_d $ {d^*} $异常。与过渡$ b \至Cτν$相关的Wilson系数是通过集成了带电的Higgs $ H^\ pm $ Boson来得出的,后者提供了主导的贡献。我们强调,带有复杂的右手夸克混合矩阵的充电的效果可以同时考虑$ r_d $和$ r_D $和$ r_ {d^*} $异常,同时坚持一组重要的约束,包括,例如,例如,$ {\ rm br}(\ rm br}(b^-_ c c \ to c \ to coutt coutt coutt C°coutt C°coutt C°τ^-CTCCUTC CUCT C° $ b_ {s(d)} - \ bar b_ {s(d)} $混合。关于这一点,我们表明$ d^\ ast $,$τ$纵向极化和$p_τ(d)$的预测值可能会影响模型的参数集合集合$ r_ {d,d,d,d^\ ast} $ anomalies。

We investigate $R_D$ and $R_{D^*}$ anomalies in a low scale left-right symmetric model based on $SU(3)_C\times SU(2)_L\times SU(2)_R\times U(1)_{B-L}$ with a simplified Higgs sector consisting of only one bidoublet and one $SU(2)_R$ doublet. The Wilson coefficients relevant to the transition $b\to cτν$ are derived by integrating out the charged Higgs $H^\pm$ boson, which gives the dominant contributions. We emphasize that the charged Higgs effects, with the complex right-handed quark mixing matrix, can account for both $R_D$ and $R_{D^*}$ anomalies simultaneously, while adhering to a set of significant constraints including, for instance, ${\rm BR}(B^-_c \to τ^- \barν_τ) $ and $B_{s(d)}-\bar B_{s(d)}$ mixing. In relation to this, we show that the predicted values of the $D^\ast$, $τ$ longitudinal polarizations and $P_τ(D)$ can be affected for the set of the parameters of the model resolving the $R_{D,D^\ast}$ anomalies.

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