We report a study of the B meson decays, B+→J/ψϕK+, B0→J/ψϕKS0, B0→J/ψϕ, B0→J/ψη, and B0→J/ψη′ using 56×10^6 BB̅ events collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring. We measure the branching fractions B(B+→J/ψϕK+)=(4.4±1.4(stat)±0.5(syst))×10-5 and B(B0→J/ψϕKS0)=(5.1±1.9(stat)±0.5(syst))×10-5, and set upper limits at 90% confidence level for the branching fractions B(B0→J/ψϕ)<9.2×10-6, B(B0→J/ψη)<2.7×10-5, and B(B0→J/ψη′)<6.3×10-5.

Rare B Decays into States Containing a J/ψ Meson and a Meson with ss̅ Quark Content

MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;SIMI, GABRIELE;
2003

Abstract

We report a study of the B meson decays, B+→J/ψϕK+, B0→J/ψϕKS0, B0→J/ψϕ, B0→J/ψη, and B0→J/ψη′ using 56×10^6 BB̅ events collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring. We measure the branching fractions B(B+→J/ψϕK+)=(4.4±1.4(stat)±0.5(syst))×10-5 and B(B0→J/ψϕKS0)=(5.1±1.9(stat)±0.5(syst))×10-5, and set upper limits at 90% confidence level for the branching fractions B(B0→J/ψϕ)<9.2×10-6, B(B0→J/ψη)<2.7×10-5, and B(B0→J/ψη′)<6.3×10-5.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2460946
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 20
social impact