Light hadron production in $B_c\to B_s^{(\ast )}+X$ decays

Abstract

The article is devoted to Bc->Bs+n pi, Bc->Bs*+n pi decays with n=1, 2, 3, 4. In the framework of factorization theorem the branching fractions of these processes can be written as convolution of hard part, describing Bc->Bs W, Bc->Bs* W vertices, and spectral functions, that correspond to transition of virtual $W$-boson into a final pi-meson system. These functions were obtained from the fit of experimental data on $\tau$-lepton decay and electron-positron annihilation. Using different sets of Bc->Bs decay form-factors we present branching fractions and distributions over the invariant mass of the final pi-meson system.

minor changes, some references added

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Cited by in corpus (10)

• Observation of the decay $B_c\to J/\psi K^{+}{K}^{-}{\pi }^{+}$
• Phenomenological study of the $B_c$ $\to$ $BP$, $BV$ decays with perturbative QCD approach
• Weak decays of doubly heavy baryons: decays to system of $\pi$ mesons
• Production of charged $\pi$-mesons in exclusive $B_c\to V(P)+n\pi$ decays
• $B_c$ $\to$ $BP$, $BV$ decays with the QCD factorization approach
• Prospects for studies of $D^{\ast 0}\to {\mu }^{+}{\mu }^{-}$ and $B_{(s)}^{\ast 0}\to {\mu }^{+}{\mu }^{-}$ decays
• Production of K mesons in exclusive $B_c$ decays
• Excited $\rho$ mesons in $B_c\to {\psi }^{{(}^{\prime })}K{K}_S$ decays
• Search for $B_{(s)}^{\ast 0}\to {\mu }^{+}{\mu }^{-}$ in $B_c^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$ decays
• The role of leptonic cascades in $B_c\to B_s$ at the LHC