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Study of Rare $B_c^+\to D_{d,s}^{(*) +}l\bar{l}$ Decays

C. Q. Geng·C. W. Hwang·C. C. Liu
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Abstract

We study the rare decays of $B_c^+\to D_{q}^{(*)+}l\bar{l}$ ($q=d,s$ and $l=ν_l,e,μ,τ)$ in the standard model. The form factors are evaluated in the light front and constituent quark models, respectively. We find that the decay branching ratios calculated in the two models for $B_c^+\to D^+_q l\bar{l}$ agree well with each other, whereas those for $B_c^+\to D_q^{*+}l\bar{l}$ are different.

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C. Q. Geng, C. W. Hwang, C. C. Liu. 2002-03-31. Study of Rare $B_c^+\to D_{d,s}^{(*) +}l\bar{l}$ Decays. https://doi.org/10.1103/physrevd.65.094037

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