Measurement of the Average $\varphi$ Multiplicity in $B$ Meson Decay

Abstract

We present a measurement of the average multiplicity of $\varphi$ mesons in $B^0$, $\bar{B}{}^0$ and $B^{\pm }$ meson decays. Using $17.6f{b}^{-1}$ of data taken at the $Υ{(4S)}\xspace$ resonance by the {\slshape B\kern-0.1em{\smaller A}\kern-0.1em B\kern-0.1em{\smaller A\kern-0.2em R}} detector at the PEP-II $e^+e^-\xspace$ storage ring at the Stanford Linear Accelerator Center, we reconstruct $\varphi$ mesons in the $K^{+}{K}^{-}$ decay mode and measure $\mathcal{B}(B\to \varphi X)=(3.41\pm 0.06\pm 0.12)$. This is significantly more precise than any previous measurement.

9 pages, 4 figures, submitted to Phys. Rev. D

References in corpus (2)

• The BABAR Detector
• Measurement of branching fractions for exclusive B decays to charmonium final states

Cited by in corpus (1)

• Null tests of the Standard Model at an International Super $B$ Factory