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arxiv: 1901.03805 · v1 · pith:WXJ6EP4Anew · submitted 2019-01-12 · ✦ hep-ph

The LFV decays B⁰_(d,s)rightarrow eμ(eτ,μτ) with one neutral singlet scalar

classification ✦ hep-ph
keywords rightarrowscalarcouplingsdecaysgammaneutralsinglettype
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Taking account of the constraint from radiative two body decays $l_i\rightarrow l_j\gamma$, we investigate the Lepton Flavor Violation decays $B^0_q\rightarrow\bar{l_l}l_k$ in the framework of the minimal extension of the Standard Model with one neutral singlet scalar. The couplings $C_{e\mu}$, $C_{e\tau}$ and $C_{\mu\tau}$ between the different generation leptons and scalar $S^0$ are constrained by the current bounds of $l_i\rightarrow l_j\gamma$. The numerical results show that the theoretical prediction of $B^0_q\rightarrow\bar{l_l}l_k$ strongly depend on the couplings $C_{qb}$ ($q=d\;or\; s$) between down type quarks and new scalar. The contributions from couplings $C_{uc}$, $C_{ut}$ and $C_{ct}$ between up type quark and new scalar are less dominant.

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