{chi}{sub c0} and {chi}{sub c2} decays into {eta}{eta}, {eta}{eta}{sup '}, and {eta}{sup '}{eta}{sup '} final states

Journal Article · Sun Apr 01 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.071101· OSTI ID:21020231

Adams, G S; Anderson, M; Cummings, J P; Danko, I; Napolitano, J ^[1]; He, Q; Insler, J; Muramatsu, H; Park, C S; Thorndike, E H; Yang, F ^[2]; Coan, T E; Gao, Y S ^[3]; Artuso, M; Blusk, S; Butt, J; Li, J; Menaa, N; Mountain, R; Nisar, S ^[4]

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1. Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)
2. University of Rochester, Rochester, New York 14627 (United States)
3. Southern Methodist University, Dallas, Texas 75275 (United States)
4. Syracuse University, Syracuse, New York 13244 (United States)

Using a sample of 3x10{sup 6} {psi}(2S) decays collected by the CLEO III and CLEO-c detector configurations, we present results of a study of {chi}{sub c0} and {chi}{sub c2} decays into {eta}{eta}, {eta}{eta}{sup '}, and {eta}{sup '}{eta}{sup '} final states. We find B({chi}{sub c0}{yields}{eta}{eta})=(0.31{+-}0.05{+-}0.04{+-}0.02)%, B({chi}{sub c0}{yields}{eta}{eta}{sup '})<0.05% at the 90% confidence level, and B({chi}{sub c0}{yields}{eta}{sup '}{eta}{sup '})=(0.17{+-}0.04{+-}0.02{+-}0.01)%. We also present upper limits for the decays of {chi}{sub c2} into these final states. These results give information on the decay mechanism of {chi}{sub c} states into pseudoscalars.

• OSTI ID: 21020231
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 75; 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
CHI0-3415 MESONS
CHI2-3555 MESONS
ETA MESONS
ETA PRIME-958 MESONS
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PSI-3770 MESONS
STANDARD MODEL