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Title: Measurement of B decays to {phi}K{gamma}

Abstract

We search for the decays B{sup -}{yields}{phi}K{sup -}{gamma} and B{sup 0}{yields}{phi}K{sup 0}{gamma} in a data sample of 228x10{sup 6} BB pairs collected at the {upsilon}(4S) resonance with the BABAR detector. We measure the branching fraction B(B{sup -}{yields}{phi}K{sup -}{gamma})=(3.5{+-}0.6{+-}0.4)x10{sup -6} and set an upper limit B(B{sup 0}{yields}{phi}K{sup 0}{gamma})<2.7x10{sup -6} at the 90% confidence level. We also measure the direct CP asymmetry in B{sup -}{yields}{phi}K{sup -}{gamma}, A{sub CP}=(-26{+-}14{+-}5)%. The uncertainties are statistical and systematic, respectively.

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. Facultat de Fisica, Departament ECM, Universitat de Barcelona, E-08028 Barcelona (Spain)
  3. Dipartimento di Fisica and INFN, Universita di Bari, 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, Berkeley, California 94720 (United States) and University of California at Berkeley, Berkeley, California 94720 (United States) (and others)
Publication Date:
OSTI Identifier:
21020036
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.75.051102; (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 MINUS MESONS; B NEUTRAL MESONS; BRANCHING RATIO; CP INVARIANCE; ELECTRON-POSITRON INTERACTIONS; HADRONIC PARTICLE DECAY; KAONS MINUS; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PEP STORAGE RINGS; PHI-1020 MESONS; PHOTONS; RESONANCE PARTICLES; UPSILON-10580 MESONS

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.. Measurement of B decays to {phi}K{gamma}. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.051102.
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.. Measurement of B decays to {phi}K{gamma}. United States. doi:10.1103/PHYSREVD.75.051102.
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.. Thu . "Measurement of B decays to {phi}K{gamma}". United States. doi:10.1103/PHYSREVD.75.051102.
@article{osti_21020036,
title = {Measurement of B decays to {phi}K{gamma}},
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 search for the decays B{sup -}{yields}{phi}K{sup -}{gamma} and B{sup 0}{yields}{phi}K{sup 0}{gamma} in a data sample of 228x10{sup 6} BB pairs collected at the {upsilon}(4S) resonance with the BABAR detector. We measure the branching fraction B(B{sup -}{yields}{phi}K{sup -}{gamma})=(3.5{+-}0.6{+-}0.4)x10{sup -6} and set an upper limit B(B{sup 0}{yields}{phi}K{sup 0}{gamma})<2.7x10{sup -6} at the 90% confidence level. We also measure the direct CP asymmetry in B{sup -}{yields}{phi}K{sup -}{gamma}, A{sub CP}=(-26{+-}14{+-}5)%. The uncertainties are statistical and systematic, respectively.},
doi = {10.1103/PHYSREVD.75.051102},
journal = {Physical Review. D, Particles Fields},
number = 5,
volume = 75,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}