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Title: Observation of {chi}{sub cJ} Radiative Decays to Light Vector Mesons

Abstract

Using a total of 2.74x10{sup 7} decays of the {psi}(2S) collected with the CLEO-c detector, we present a study of {chi}{sub cJ}{yields}{gamma}V, where V={rho}{sup 0}, {omega}, {phi}. The transitions {chi}{sub c1}{yields}{gamma}{rho}{sup 0} and {chi}{sub c1}{yields}{gamma}{omega} are observed with B({chi}{sub c1}{yields}{gamma}{rho}{sup 0})=(2.43{+-}0.19{+-}0.22)x10{sup -4} and B({chi}{sub c1}{yields}{gamma}{omega})=(8.3{+-}1.5{+-}1.2)x10{sup -5}. In the {chi}{sub c1}{yields}{gamma}{rho}{sup 0} transition, the final state meson is dominantly longitudinally polarized. Upper limits on the branching fractions of other {chi}{sub cJ} states to light vector mesons are presented.

Authors:
; ;  [1];  [2];  [3]; ; ; ; ; ; ; ; ;  [4]; ; ; ; ;  [5];  [6]
  1. Indiana University, Bloomington, Indiana 47405 (United States)
  2. University of Kansas, Lawrence, Kansas 66045 (United States)
  3. Luther College, Decorah, Iowa 52101 (United States)
  4. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
  5. Northwestern University, Evanston, Illinois 60208 (United States)
  6. University of Oxford, Oxford OX1 3RH (United Kingdom) (and others)
Publication Date:
OSTI Identifier:
21179792
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 101; Journal Issue: 15; Other Information: DOI: 10.1103/PhysRevLett.101.151801; (c) 2008 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; BRANCHING RATIO; CESR STORAGE RING; GAMMA RADIATION; HADRONIC PARTICLE DECAY; MULTIPARTICLE SPECTROMETERS; OMEGA BARYONS; PARTICLE IDENTIFICATION; PHI MESONS; PHOTONS; RADIATIVE DECAY; RHO-770 MESONS; VECTOR MESONS

Citation Formats

Bennett, J. V., Mitchell, R. E., Shepherd, M. R., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Hietala, J., Kubota, Y., Klein, T., Lang, B. W., Poling, R., Scott, A. W., Zweber, P., Dobbs, S., Metreveli, Z., Seth, K. K., Tan, B. J. Y., Tomaradze, A., and Libby, J. Observation of {chi}{sub cJ} Radiative Decays to Light Vector Mesons. United States: N. p., 2008. Web. doi:10.1103/PHYSREVLETT.101.151801.
Bennett, J. V., Mitchell, R. E., Shepherd, M. R., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Hietala, J., Kubota, Y., Klein, T., Lang, B. W., Poling, R., Scott, A. W., Zweber, P., Dobbs, S., Metreveli, Z., Seth, K. K., Tan, B. J. Y., Tomaradze, A., & Libby, J. Observation of {chi}{sub cJ} Radiative Decays to Light Vector Mesons. United States. doi:10.1103/PHYSREVLETT.101.151801.
Bennett, J. V., Mitchell, R. E., Shepherd, M. R., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Hietala, J., Kubota, Y., Klein, T., Lang, B. W., Poling, R., Scott, A. W., Zweber, P., Dobbs, S., Metreveli, Z., Seth, K. K., Tan, B. J. Y., Tomaradze, A., and Libby, J. Fri . "Observation of {chi}{sub cJ} Radiative Decays to Light Vector Mesons". United States. doi:10.1103/PHYSREVLETT.101.151801.
@article{osti_21179792,
title = {Observation of {chi}{sub cJ} Radiative Decays to Light Vector Mesons},
author = {Bennett, J. V. and Mitchell, R. E. and Shepherd, M. R. and Besson, D. and Pedlar, T. K. and Cronin-Hennessy, D. and Gao, K. Y. and Hietala, J. and Kubota, Y. and Klein, T. and Lang, B. W. and Poling, R. and Scott, A. W. and Zweber, P. and Dobbs, S. and Metreveli, Z. and Seth, K. K. and Tan, B. J. Y. and Tomaradze, A. and Libby, J.},
abstractNote = {Using a total of 2.74x10{sup 7} decays of the {psi}(2S) collected with the CLEO-c detector, we present a study of {chi}{sub cJ}{yields}{gamma}V, where V={rho}{sup 0}, {omega}, {phi}. The transitions {chi}{sub c1}{yields}{gamma}{rho}{sup 0} and {chi}{sub c1}{yields}{gamma}{omega} are observed with B({chi}{sub c1}{yields}{gamma}{rho}{sup 0})=(2.43{+-}0.19{+-}0.22)x10{sup -4} and B({chi}{sub c1}{yields}{gamma}{omega})=(8.3{+-}1.5{+-}1.2)x10{sup -5}. In the {chi}{sub c1}{yields}{gamma}{rho}{sup 0} transition, the final state meson is dominantly longitudinally polarized. Upper limits on the branching fractions of other {chi}{sub cJ} states to light vector mesons are presented.},
doi = {10.1103/PHYSREVLETT.101.151801},
journal = {Physical Review Letters},
number = 15,
volume = 101,
place = {United States},
year = {Fri Oct 10 00:00:00 EDT 2008},
month = {Fri Oct 10 00:00:00 EDT 2008}
}