Search for {psi}(2S){yields}{gamma}{eta}{sub c}(2S) via fully reconstructed {eta}{sub c}(2S) decays

Journal Article · Mon Mar 01 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.052002· OSTI ID:21409814

Cronin-Hennessy, D; Gao, K Y; Gong, D T; Hietala, J; Kubota, Y; Klein, T; Poling, R; Zweber, P ^[1]; Dobbs, S; Metreveli, Z; Seth, K K; Tan, B J. Y.; Tomaradze, A ^[2]; Libby, J; Martin, L; Powell, A; Thomas, C; Wilkinson, G ^[3]; Mendez, H ^[4]; Ge, J Y ^[5]

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1. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
2. Northwestern University, Evanston, Illinois 60208 (United States)
3. University of Oxford, Oxford OX1 3RH (United Kingdom)
4. University of Puerto Rico, Mayaguez, Puerto Rico 00681 (Puerto Rico)
5. Purdue University, West Lafayette, Indiana 47907 (United States)

We report a search for the decay {psi}(2S){yields}{gamma}{eta}{sub c}(2S) in a sample of 25.9x10{sup 6} {psi}(2S) events collected with the CLEO-c detector. No signals are observed in any of the 11 exclusive {eta}{sub c}(2S) decay modes studied, or in their sum. Product branching fraction upper limits are determined as a function of {Gamma}[{eta}{sub c}(2S)] for the 11 individual modes.

• OSTI ID: 21409814
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevD.81.052002; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CESR STORAGE RING
MULTIPARTICLE SPECTROMETERS
PARTICLE DECAY
PARTICLE IDENTIFICATION
DECAY
DIMENSIONLESS NUMBERS
MEASURING INSTRUMENTS
SPECTROMETERS
STORAGE RINGS