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Radiative decays of the Y (1S) to a pair of charged hadrons

Athar, S. B. and Bornheim, A. and Pappas, S. P. and Weinstein, Alan J. (2006) Radiative decays of the Y (1S) to a pair of charged hadrons. Physical Review D, 73 (3). Art. No. 032001. ISSN 2470-0010.

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Using data obtained with the CLEO III detector, running at the Cornell Electron Storage Ring (CESR), we report on a new study of exclusive radiative Υ(1S) decays into the final states γπ^+π^-, γK^+K^-, and γpp̅ . We present branching ratio measurements for the decay modes Υ(1S)→γf_2(1270), Υ(1S)→γf′_2(1525), and Υ(1S)→γK^+K^-; helicity production ratios for f_2(1270) and f′_2(1525); upper limits for the decay Υ(1S)→γf_J(2200), with f_J(2220)→π^+π^-, K^+K^-, pp̅ ; and an upper limit for the decay Υ(1S)→γX(1860), with X(1860)→γpp̅ .

Item Type:Article
Related URLs:
URLURL TypeDescription
Bornheim, A.0000-0002-0128-0871
Weinstein, Alan J.0000-0002-0928-6784
Additional Information:© 2006 American Physical Society. Received 4 October 2005; published 3 February 2006. We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. This work was supported by the National Science Foundation and the U.S. Department of Energy.
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Department of Energy (DOE)UNSPECIFIED
Issue or Number:3
Classification Code:PACS: 13.20.Gd
Record Number:CaltechAUTHORS:20110210-145105067
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22119
Deposited By: Benjamin Perez
Deposited On:10 Feb 2011 23:22
Last Modified:09 Mar 2020 13:18

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