The ${\rm Y}(1S)$ $\to$ $B_c\rho$ decay with perturbative QCD approach

Abstract

With the potential prospects of the ${\rm Y}(1S)$ data samples at the running LHC and upcoming SuperKEKB, the ${\rm Y}(1S)$ $\to$ $B_c\rho$ weak decays are studied with the pQCD approach. It is found that (1) the lion's share of branching ratio comes from the longitudinal polarization helicity amplitudes; (2) branching ratio for the ${\rm Y}(1S)$ $\to$ $B_c\rho$ decay can reach up to $\mathcal{O}(10^{-9})$, which might be hopefully measurable.

14 pages, revtex

References in corpus (9)

• Big-Bang Nucleosynthesis
• The Physics of the B Factories
• Production of inclusive ${\rm Y}$(1S) and ${\rm Y}$(2S) in p-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=5.02$ TeV
• Semileptonic $B_c$ decays and Charmonium distribution amplitude
• Beauty mesons in lattice QCD with exact chiral symmetry
• $B\to \rho$ transition form factors within the QCD light-cone sum rules and the $\rho$-meson leading-twist distribution amplitude
• The $\rho$-meson longitudinal leading-twist distribution amplitude
• ${\rm Y}(1S)$ $\to$ $B_c\pi$, $B_{c}K$ decays with perturbative QCD approach
• Study of the ${\rm Y}(1S)$ $\to$ $B_c{D}_s^{\ast }$ decay with pQCD approach

Cited by in corpus (3)

• ${\rm Y}(nS)$ $\to$ $B_c\rho$, $B_c{K}^{\ast }$ decays with perturbative QCD approach
• $B_u$ $\to$ $\psi M$ decays and $S$-$D$ wave mixing effects
• Study of the ${\rm Y}(1S)$ $\to$ $DP$ decays