Semi-leptonic $B\to S$ decays in the standard model and in the universal extra dimension model

Abstract

In this article, we assume the two nonets of scalar mesons below and above 1 GeV are all $\bar{q}q$ states, and study the semi-leptonic decays $B\to S{\ell }^{-}{\bar{\nu }}_{\ell }$, $B\to S{\ell }^{+}{\ell }^{-}$ and $B\to S\bar{\nu }\nu$ both in the standard model and in the universal extra dimension model using the $B-S$ form-factors calculated by the light-cone QCD sum rules in our previous work. We obtain the partial decay widths and decay widths, which can be confronted with the experimental data in the future to examine the natures of the scalar mesons and constrain the basic parameter in the universal extra dimension model, the compactification scale $1/R$.

16 pages, 18 figures

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Cited by in corpus (7)

• Semileptonic $B$ and $B_s$ decays involving scalar and axial-vector mesons
• Form factors of the B-S-transitions in the covariant quark model
• $K_0^{\ast }(1430)$ Twist-2 Distribution Amplitude and $B_s,D_s\to K_0^{\ast }(1430)$ Transition Form Factors
• Probing $|V_{cs}|$ and lepton flavor universality through $D\to K_0^{\ast }(1430)\ell {\nu }_{\ell }$ decay
• b-s Anomaly Decays in Covariant Quark Model
• Scrutinizing $B^0$-meson flavor changing neutral current decay into scalar $K_0^{\ast }(1430)$ meson with $b\to s{\ell }^{+}{\ell }^{-}(\nu \bar{\nu })$ transition
• Form factors of $B_{(s)}$ to light scalar mesons with the $B$-meson LCSR