New physics in B_s^0 -> J/ψϕdecays?

Abstract

After a brief review of B_s^0 - \bar B_s^0 oscillations, we discuss the weak decays B_s^0 -> J/ψϕand B_s^0 -> J/ψf_0(980) and the ratio R_{f_0/ϕ} of their decay rates in the light of recent measurements by the LHCb, D0 and CDF Collaborations. We point out that the experimental values for R_{f_0/ϕ} impose tight limits on new physics contributions to both decay channels.

Talk given at the Erice School on Nuclear Physics 2011: From Quarks and Gluons to Hadrons and Nuclei, organized by A. Faessler and J. Wambach (7 pages, 2 figures)

References in corpus (9)

• Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay
• $B\to S$ Transition Form Factors in the PQCD approach
• First observation of Bs -> J/psi f0(980) decays
• Measurement of branching ratio and Bs0 lifetime in the decay Bs0 -> J/psi f0(980) at CDF
• B- to light-meson transition form factors
• The Scalar Meson f0(980) in Heavy-Meson Decays
• Scalar resonance effects on the B_s - \bar B_s mixing angle
• Measurement of the angular and lifetime parameters of the decays $B_d^0\to J/\psi K^{\ast 0}$ and $B_s^0\to J/\psi \varphi$
• Can experiment distinguish tetraquark scalars, molecules and $\qq$ mesons?

Cited by in corpus (2)

• Analysis of the resonant components in Bs->J/ψπ+π-
• Mass spectrum and decay constants of radially excited vector mesons