# Search for B-meson decays to b1rho and b1K

Abstract : We present a search for decays of $B$ mesons to final states with a $b\_1$ meson and a $\rho$ or $K^*(892)$ meson. The search is based on a data sample consisting of 465 million $B\kern 0.18em{\kern -0.18em B}{}$ pairs collected 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 SLAC National Accelerator Laboratory. We do not observe any statistically significant signal. The upper limits we set on the branching fractions range from 1.4 to $8.0 \times 10^{-6}$ at the 90% confidence level (C.L.), including systematic uncertainties.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00420307
Contributor : Claudine Bombar <>
Submitted on : Monday, September 28, 2009 - 3:46:22 PM
Last modification on : Tuesday, December 22, 2020 - 12:40:02 PM

### Citation

B. Aubert, Y. Karyotakis, J.P. Lees, V. Poireau, E. Prencipe, et al.. Search for B-meson decays to b1rho and b1K. Physical Review D, American Physical Society, 2009, 80, pp.051101. ⟨10.1103/PhysRevD.80.051101⟩. ⟨in2p3-00420307⟩

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