Measurements of the branching fractions of exclusive charmless B meson decays with ${\eta }^{p}rime$ or $\omega$ mesons

Abstract

We present the results of searches for B decays to charmless two-body final states containing ${\eta }^{\prime }$ or $\omega$ mesons, based on 20.7 fb${}^{-1}$ of data collected with the BABAR detector. We find the branching fractions $\mathcal{B}(B^{+}\to {\eta }^{\prime }{K}^{+})=(70\pm 8\pm 5)\times 10^{-6}$, $\mathcal{B}(B^0\to {\eta }^{\prime }{K}^0)=(42_{-11}^{+13}\pm 4)\times 10^{-6}$, and $\mathcal{B}(B^{+}\to \omega {\pi }^{+})=6.6_{-1.8}^{+2.1}\pm 0.7)\times 10^{-6}$ where the first error quoted is statistical and the second systematic. We give measurements of four additional modes for which the 90% confidence level upper limits are $\mathcal{B}(B^0\to \omega K^0)<13\times 10^{-6}$, $\mathcal{B}(B^{+}\to {\eta }^{\prime }{\pi }^{+})<12\times 10^{-6}$, $\mathcal{B}(B^{+}\to \omega K^{+})<4\times 10^{-6}$, and $\mathcal{B}(B^0\to \omega {\pi }^0)<3\times 10^{-6}$.

Version as published in Phys. Rev. Lett

References in corpus (1)

• Measurement of Branching Fractions and Search for CP-Violating Charge Asymmetries in Charmless Two-Body B Decays into Pions and Kaons

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