New measurement of exclusive decays of the {chi}{sub c0} and {chi}{sub c2} to two-meson final states

Journal Article · Wed Apr 01 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.072007· OSTI ID:21308137

Asner, D M; Edwards, K W; Reed, J; Robichaud, A N; Tatishvili, G ^[1]; Briere, R A; Vogel, H ^[2]; Onyisi, P U. E.; Rosner, J L ^[3]; Alexander, J P; Cassel, D G; Duboscq, J E; Ehrlich, R; Fields, L; Galik, R S; Gibbons, L; Gray, R; Gray, S W; Hartill, D L; Heltsley, B K ^[4]

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1. Carleton University, Ottawa, Ontario, Canada K1S 5B6 (Canada)
2. Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)
3. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)
4. Cornell University, Ithaca, New York 14853 (United States)

Using a sample of 2.59x10{sup 7} {psi}(2S) decays collected by the CLEO-c detector, we present results of a study of {chi}{sub c0} and {chi}{sub c2} decays into two-meson final states. We present the world's most precise measurements of the {chi}{sub cJ,(J=0,2)}{yields}{pi}{sup +}{pi}{sup -}, {pi}{sup 0}{pi}{sup 0}, K{sup +}K{sup -}, K{sub S}{sup 0}K{sub S}{sup 0}, {eta}{eta}, and {eta}{sup '}{eta}{sup '} branching fractions, and a search for {chi}{sub c} decays into {eta}{eta}{sup '}. These results shed light on the mechanism of charmonium decays into pseudoscalar mesons.

• OSTI ID: 21308137
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CESR STORAGE RING
CHARMONIUM
KAONS MINUS
KAONS PLUS
MULTIPARTICLE SPECTROMETERS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PIONS MINUS
PSEUDOSCALAR MESONS