论文标题
$ r_ {d^{（\ ast）}} $，$ b \ to s \ ell^+\ ell^ - $和$ w $ -mass中充电Higgs效果的相互作用
Interplay of the charged Higgs effects in $R_{D^{(\ast)}}$, $b\to s \ell^+\ell^-$ and $W$-mass
论文作者
论文摘要
当前有关半甲基电荷和中性电流$ b $衰减的数据显示出与标准模型的预测的偏差。众所周知，属于两吉格斯双重型号的带电的希格斯玻色子，没有$ z_2 $对称性，它为带电的$ b $衰减提供了最简单的解决方案之一。我们表明，该解决方案自然诱导了在Wilson系数（$ C_ {9 \ Ell} $）中的$ \ Mathcal {O}（1）$的负数转移。有趣的是，Lepton的普遍性比$ b \与S \ ell^+\ ell^ - $衰减与最近的LHCB结果相符，仍然像Smike一样。来自中性$ b $和$ k $梅森混合的精确约束，衰减$ b_c \ toτ\barν$，$ b \ tox_sγ$，并且可以满足Leptonic的衰减$τ$和$ z $。此外，与CDF测量非常吻合的$ W $ -BOSON质量的正转移也可能是可能的，要求中性标量比带电的Higgs重，但在子TEV区域内。
Current data on semileptonic charged- and neutral-current $B$ decays show deviations from the predictions of the Standard Model. It is well known that a charged Higgs boson, belonging to the two-Higgs doublet model without $Z_2$ symmetry, offers one of the simplest solution to the charged-current $B$ decays. We show that this solution naturally induces a negative shift of $\mathcal{O}(1)$ in the Wilson coefficient ($C_{9\ell}$) of operator $(\bar s_Lγ_μb_L)(\bar \ellγ^μ\ell)$, potentially resolving the tension in neutral-current $B$ decays as well. Interestingly, the lepton universality ratios in $b\to s \ell^+\ell^-$ decays, in tune with the recent LHCb result, remain SM-like. Precision constraints from neutral $B$ and $K$ meson mixing, decays $B_c\to τ\barν$, $B\to X_sγ$, and leptonic decays of $τ$ and $Z$ can be satisfied. Furthermore, a positive shift in $W$-boson mass, nicely in agreement with the CDF measurement, is also possible, requiring the neutral scalars to be heavier than the charged Higgs but within the sub-TeV region.
