Measurements of Branching Fraction, Polarization, and Charge Asymmetry of B{sup {+-}}{yields}{rho}{sup {+-}}{rho}{sup 0} and a Search for B{sup {+-}}{yields}{rho}{sup {+-}}f{sub 0}(980)
- Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
- Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
- Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
- Institute of High Energy Physics, Beijing 100039 (China)
- University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)
We measure the branching fraction (B), polarization (f{sub L}), and CP asymmetry (A{sub CP}) of B{sup {+-}}{yields}{rho}{sup {+-}}{rho}{sup 0} decays and search for the decay B{sup {+-}}{yields}{rho}{sup {+-}}f{sub 0}(980) based on a data sample of 231.8x10{sup 6} {upsilon}(4S){yields}BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. In B{sup {+-}}{yields}{rho}{sup {+-}}{rho}{sup 0} decays we measure B=(16.8{+-}2.2{+-}2.3)x10{sup -6}, f{sub L}=0.905{+-}0.042{sub -0.027}{sup +0.023}, and A{sub CP}=-0.12{+-}0.13{+-}0.10, and find an upper limit on the branching fraction of B{sup {+-}}{yields}{rho}{sup {+-}}f{sub 0}(980)({yields}{pi}{sup +}{pi}{sup -}) decays of 1.9x10{sup -6} at 90% confidence level.
- OSTI ID:
- 20861537
- Journal Information:
- Physical Review Letters, Vol. 97, Issue 26; Other Information: DOI: 10.1103/PhysRevLett.97.261801; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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