Measurements of branching fraction, polarization, and charge asymmetry of B+ --> rho+ rho0 and a search for B+ --> rho+ f0(980)

Preprint

28 July 2006

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0607092

Abstract

We measure the branching fraction, polarization and CP asymmetry of B+ -> rho+rho0 decays and search for the decay B+ -> rho+f_0(980) based on a data sample of 231.8 million Y(4S)->BB decays collected with the BaBar detector at the SLAC PEP-II asymmetric-energy B factory. In B+ -> rho+rho0 decays we measure B=(16.8+-2.2+-2.3)x10-6, f_L=0.905+-0.042+0.023-0.027, and A_CP=-0.12+-0.13+-0.10, and find an upper limit on the branching fraction of B+ -> rho+f_0(980)(->pi+pi-) of 1.9x10-6 at 90% Confidence Level.

Keywords

MEASUREMENTS OF BRANCHING
BRANCHING FRACTION
CHARGE ASYMMETRY
POLARIZATION
DATA SAMPLE
DECAYS
RHO0
F_0

All Related Versions

Version 1, 2006-07-28, ArXiv
Published version: Physical Review Letters, 97 (26), 261801.

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