Observation of {psi}(3770){yields}{gamma}{chi}{sub c0}

Journal Article · Tue Aug 01 00:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.031106· OSTI ID:20869202

Briere, R A; Brock, I; Chen, J; Ferguson, T; Tatishvili, G; Vogel, H; Watkins, M E ^[1]; Rosner, J L ^[2]; Adam, N E; Alexander, J P; Berkelman, K; Cassel, D G; Duboscq, J E; Ecklund, K M; Ehrlich, R; Fields, L; Galik, R S; Gibbons, L; Gray, R; Gray, S W ^[3]

---

1. Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)
2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)
3. Cornell University, Ithaca, New York 14853 (United States)

From e{sup +}e{sup -} collision data acquired with the CLEO-c detector at CESR, we search for the non-DD decays {psi}(3770){yields}{gamma}{chi}{sub cJ}, with {chi}{sub cJ} reconstructed in four exclusive decays modes containing charged pions and kaons. We report the first observation of such decays for J=0 with a branching ratio of (0.73{+-}0.07{+-}0.06)%. The rates for different J are consistent with the expectations assuming {psi}(3770) is predominantly a 1{sup 3}D{sub 1} state of charmonium, but only if relativistic corrections are applied.

• OSTI ID: 20869202
• Journal Information: Physical Review. D, Particles Fields, Vol. 74, Issue 3; Other Information: DOI: 10.1103/PhysRevD.74.031106; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); 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
ELECTRON-POSITRON INTERACTIONS
KAONS MINUS
KAONS PLUS
MULTIPARTICLE SPECTROMETERS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PHOTONS
PIONS MINUS
PIONS PLUS
PSI-3770 MESONS
RELATIVISTIC RANGE