skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Branching Fraction Measurements of B{sup +}{yields}{rho}{sup +}{gamma}, B{sup 0}{yields}{rho}{sup 0}{gamma}, and B{sup 0}{yields}{omega}{gamma}

Abstract

We present a study of the decays B{sup +}{yields}{rho}{sup +}{gamma}, B{sup 0}{yields}{rho}{sup 0}{gamma}, and B{sup 0}{yields}{omega}{gamma}. The analysis is based on data containing 347x10{sup 6} BB events recorded with the BABAR detector at the PEP-II asymmetric B factory. We measure the branching fractions B(B{sup +}{yields}{rho}{sup +}{gamma})=(1.10{sub -0.33}{sup +0.37}{+-}0.09)x10{sup -6} and B(B{sup 0}{yields}{rho}{sup 0}{gamma})=(0.79{sub -0.20}{sup +0.22}{+-}0.06)x10{sup -6}, and set a 90% C.L. upper limit B(B{sup 0}{yields}{omega}{gamma})<0.78x10{sup -6}. We also measure the isospin-averaged branching fraction B(B{yields}({rho}/{omega}){gamma})=(1.25{sub -0.24}{sup +0.25}{+-}0.09)x10{sup -6}, from which we determine vertical bar V{sub td}/V{sub ts} vertical bar=0.200{sub -0.020}{sup +0.021}{+-}0.015, where the first uncertainty is experimental and the second is theoretical.

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:
20951228
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 15; Other Information: DOI: 10.1103/PhysRevLett.98.151802; (c) 2007 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 PLUS MESONS; BRANCHING RATIO; GAMMA RADIATION; ISOSPIN; OMEGA BARYONS; PARTICLE DECAY; RHO-770 MESONS

Citation Formats

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J. P., Poireau, V., Prudent, X., 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.. Branching Fraction Measurements of B{sup +}{yields}{rho}{sup +}{gamma}, B{sup 0}{yields}{rho}{sup 0}{gamma}, and B{sup 0}{yields}{omega}{gamma}. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.151802.
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J. P., Poireau, V., Prudent, X., 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.. Branching Fraction Measurements of B{sup +}{yields}{rho}{sup +}{gamma}, B{sup 0}{yields}{rho}{sup 0}{gamma}, and B{sup 0}{yields}{omega}{gamma}. United States. doi:10.1103/PHYSREVLETT.98.151802.
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J. P., Poireau, V., Prudent, X., 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.. Fri . "Branching Fraction Measurements of B{sup +}{yields}{rho}{sup +}{gamma}, B{sup 0}{yields}{rho}{sup 0}{gamma}, and B{sup 0}{yields}{omega}{gamma}". United States. doi:10.1103/PHYSREVLETT.98.151802.
@article{osti_20951228,
title = {Branching Fraction Measurements of B{sup +}{yields}{rho}{sup +}{gamma}, B{sup 0}{yields}{rho}{sup 0}{gamma}, and B{sup 0}{yields}{omega}{gamma}},
author = {Aubert, B. and Bona, M. and Boutigny, D. and Karyotakis, Y. and Lees, J. P. and Poireau, V. and Prudent, X. 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 present a study of the decays B{sup +}{yields}{rho}{sup +}{gamma}, B{sup 0}{yields}{rho}{sup 0}{gamma}, and B{sup 0}{yields}{omega}{gamma}. The analysis is based on data containing 347x10{sup 6} BB events recorded with the BABAR detector at the PEP-II asymmetric B factory. We measure the branching fractions B(B{sup +}{yields}{rho}{sup +}{gamma})=(1.10{sub -0.33}{sup +0.37}{+-}0.09)x10{sup -6} and B(B{sup 0}{yields}{rho}{sup 0}{gamma})=(0.79{sub -0.20}{sup +0.22}{+-}0.06)x10{sup -6}, and set a 90% C.L. upper limit B(B{sup 0}{yields}{omega}{gamma})<0.78x10{sup -6}. We also measure the isospin-averaged branching fraction B(B{yields}({rho}/{omega}){gamma})=(1.25{sub -0.24}{sup +0.25}{+-}0.09)x10{sup -6}, from which we determine vertical bar V{sub td}/V{sub ts} vertical bar=0.200{sub -0.020}{sup +0.021}{+-}0.015, where the first uncertainty is experimental and the second is theoretical.},
doi = {10.1103/PHYSREVLETT.98.151802},
journal = {Physical Review Letters},
number = 15,
volume = 98,
place = {United States},
year = {Fri Apr 13 00:00:00 EDT 2007},
month = {Fri Apr 13 00:00:00 EDT 2007}
}