论文标题
增强$ b_q \ to \ ell \ ell \ ell^\ prime $和$ b \ to（K，π）
Enhanced $B_q \to \ell\ell^\prime$ and $B \to (K, π) \ell\ell^\prime$ in light of $(g-2)_μ$
论文作者
论文摘要
我们研究了违反Lepton风味的（LFV）$ b $衰减，其中有两个带有子TEV外来标量的Higgs Doublet模型。探索了两个不同的参数空间：一个由额外的Yukawa耦合$ρ_{tt} $主导，另一个由LFV耦合与Muon $ G-2 $异常相关的LFV耦合。在第一种情况下，诸如$ \ ell \ to \ ell^\primeγ$，$ h \ to \ ell \ ell \ ell^prime $诸如$ \ ell \ to之类的风味约束，暗示着lfv $ b $衰减远低于实验敏感性。第二种情况需要接近对齐限制，但是$ b_q \ toτμ$和$ b \ to（k，π）τμ$ rates可以在Belle II和LHCB升级II的灵敏度内。中性$ b $梅森混合和$ b，\，k，\，π\ to \ellν$衰减提供了有关参数空间的重要风味限制。 $ b $衰减涉及$ e $ - $τ$违规的损失受$μ\ to e $流程的约束。
We study lepton flavor violating (LFV) $B$ decays in a general two Higgs doublet model with sub-TeV exotic scalars. Two different parameter spaces are explored: one dominated by extra top Yukawa coupling $ρ_{tt}$, the other by LFV couplings relevant for the muon $g-2$ anomaly. In the first case, flavor constraints such as $\ell \to \ell^\primeγ$, $h \to \ell\ell^\prime$ imply LFV $B$ decays are far below experimental sensitivities. The second case needs to be close to the alignment limit, but $B_q \to τμ$ and $B \to (K, π) τμ$ rates can lie within the sensitivities of Belle II and LHCb Upgrade II. Neutral $B$ meson mixings and $B,\, K,\, π\to \ell ν$ decays provide important flavor constraints on parameter space. $B$ decays involving $e$-$τ$ violation are constrained by $μ\to e$ processes.
