Understanding B -->J/Ψϕin the Standard Model

2009/01/31 by Ying Li, Hai-Yang Cheng
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physletb.2009.05.037

published as Phys.Lett.B677:278-281,2009 · 8 pages, 3 figures, some typos are corrected, version for publish in PLB

arxiv created 2009/05/20 · openalex publication_date 2009/05/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The rare decay B_d⁰→ J/ψϕ can proceed in four distinct mechanisms: (i) production of the ϕ via tri-gluon fusion, (ii) photoproduction of the J/ψ or ϕ, (iii) final-state rescattering of D_s^(*)D_s^(*) produced in the B_d decay to J/ψϕ, and (iv) production of the ϕ via ω-ϕ mixing. In this work, we examine the contributions from photoproduction and final-state rescattering to B_d⁰→ J/ψϕ and find that the corresponding branching ratios are of order 10^-11 and 10^-9, respectively. Hence, this decay is dominated by the ω-ϕ mixing effect.

Citations

• Radiative decays, nonet symmetry, and SU(3) breaking
• Review of Particle Physics
• φ-meson and unitary symmetry model
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)