The role of leptonic cascades in $B_c\to B_s$ at the LHC

Abstract

We study the feasibility and advantages of investigating the $c\to s$ decay channel of the $B_c$ meson through the cascade decay $B_c\to B_s\pi$, $B_s\to D_s\ell \nu$. We take into account possible contaminations coming from the vector excitations (like $B_s^{\ast }$, $D_s^{\ast }$ or $\rho$ in the intermediate stages of the cascade) too, as well as the opposite cascade $B_c\to B_s\ell \nu$, $B_s\to D_s\pi$. We show how the $p_T$ distribution of the pion and the lepton can possibly help to differentiate between various form factor models, for which we either need more integrated luminosity at the LHC, or a high-luminosity $e^{+}{e}^{-}$ B factory producing $B_c$ mesons too.

arXiv comment6 pages, 2 figures. Dedicated to the memory of our colleague Debrupa Chakraverty

References in corpus (10)

• LHCb Detector Performance
• Observation of the Decay $B_c^{\pm }\to J/\psi {\pi }^{\pm }$ and Measurement of the $B_c^{\pm }$ Mass
• Measurements of $B_c^{+}$ production and mass with the $B_c^{+}\to J/\psi {\pi }^{+}$ decay
• First observation of the decay Bc+ to J/psi pi+pi-pi+
• Study of Bc -> BP,BV Decays with QCD Factorization
• Probing Non-leptonic Two-body Decays of $B_c$ meson
• Phenomenological study of the $B_c$ $\to$ $BP$, $BV$ decays with perturbative QCD approach
• BCVEGPY2.2: A Newly Upgraded Version for Hadronic Production of the Meson $B_c$ and Its Excited States
• Light hadron production in $B_c\to B_s^{(\ast )}+X$ decays
• Charmless $B_c$ $\to$ $PP$, $PV$ decays in the QCD factorization approach