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Title: 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)

Abstract

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.

Authors:
; ; ; ; ; ; ; ;  [1];  [2];  [3]; ; ; ; ;  [4]; ; ;  [5];  [6]
  1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
  2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
  3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
  4. Institute of High Energy Physics, Beijing 100039 (China)
  5. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
  6. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States) (and others)
Publication Date:
OSTI Identifier:
20861537
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 97; Journal Issue: 26; Other Information: DOI: 10.1103/PhysRevLett.97.261801; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; B MINUS MESONS; B PLUS MESONS; BRANCHING RATIO; CP INVARIANCE; F0-980 MESONS; PAIR PRODUCTION; PARTICLE DECAY; PIONS MINUS; PIONS PLUS; POLARIZATION; RHO-770 MESONS; STANFORD LINEAR ACCELERATOR CENTER

Citation Formats

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J. P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J. C., Qi, N. D., Rong, G., Wang, P., Zhu, Y. S., Eigen, G., Ofte, I., Stugu, B., and Abrams, G. S. 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). United States: N. p., 2006. Web. doi:10.1103/PHYSREVLETT.97.261801.
Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J. P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J. C., Qi, N. D., Rong, G., Wang, P., Zhu, Y. S., Eigen, G., Ofte, I., Stugu, B., & Abrams, G. S. 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). United States. doi:10.1103/PHYSREVLETT.97.261801.
Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J. P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J. C., Qi, N. D., Rong, G., Wang, P., Zhu, Y. S., Eigen, G., Ofte, I., Stugu, B., and Abrams, G. S. Sun . "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)". United States. doi:10.1103/PHYSREVLETT.97.261801.
@article{osti_20861537,
title = {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)},
author = {Aubert, B. and Bona, M. and Boutigny, D. and Couderc, F. and Karyotakis, Y. and Lees, J. P. and Poireau, V. and Tisserand, V. and Zghiche, A. and Grauges, E. and Palano, A. and Chen, J. C. and Qi, N. D. and Rong, G. and Wang, P. and Zhu, Y. S. and Eigen, G. and Ofte, I. and Stugu, B. and Abrams, G. S.},
abstractNote = {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.},
doi = {10.1103/PHYSREVLETT.97.261801},
journal = {Physical Review Letters},
number = 26,
volume = 97,
place = {United States},
year = {Sun Dec 31 00:00:00 EST 2006},
month = {Sun Dec 31 00:00:00 EST 2006}
}