We report measurements of the decays B+→ϕϕK+ and B0→ϕϕK0 using a sample of 231×10^6 BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The branching fractions are measured to be B(B+→ϕϕK+)=(7.5±1.0(stat)±0.7(syst))×10-6 and B(B0→ϕϕK0)=(4.1-1.4+1.7(stat)±0.4(syst))×10-6 for a ϕϕ invariant mass below 2.85  GeV/c2.

Observation of B+→φφK+ and Evidence for B0→φφK0 below ηc Threshold

SIMI, GABRIELE;GAZ A;MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;
2006

Abstract

We report measurements of the decays B+→ϕϕK+ and B0→ϕϕK0 using a sample of 231×10^6 BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The branching fractions are measured to be B(B+→ϕϕK+)=(7.5±1.0(stat)±0.7(syst))×10-6 and B(B0→ϕϕK0)=(4.1-1.4+1.7(stat)±0.4(syst))×10-6 for a ϕϕ invariant mass below 2.85  GeV/c2.
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/11577/125736
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 5
social impact