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Search for Ψ(2S) production in e^+e^- annihilations at 4.03 GeV

Bai, J. Z. and Hitlin, D. G. and Kelsey, M. H. and Oyang, J. and Panetta, J. and Porter, F. and Weaver, M. (1998) Search for Ψ(2S) production in e^+e^- annihilations at 4.03 GeV. Physical Review D, 57 (7). pp. 3854-3859. ISSN 2470-0010. doi:10.1103/PhysRevD.57.3854.

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A search is performed for the production of the ψ(2S) in e^+e^- annihilation at a center-of-mass energy of 4.03 GeV using the BES detector operated at the Beijing Electron Positron Collider (BEPC). The kinematic features of the reconstructed ψ(2S) signal are consistent with its being produced only in association with an energetic photon resulting from initial state radiation (ISR). Limits are placed on ψ(2S) production from the decay of unknown charmonia or metastable hybrids that might be produced in e^+e^- annihilations at 4.03 GeV. Under the assumption that the observed cross section for ψ(2S) production is due entirely to ISR, the partial width Γ_(ee) of the ψ(2S) is measured to be 2.07±0.32keV.

Item Type:Article
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Hitlin, D. G.0000-0003-4028-6982
Porter, F.0000-0003-1948-8889
Additional Information:© 1998 The American Physical Society. Received 8 October 1997; published 6 March 1998. We would like to thank the staffs of the BEPC accelerator and the Computing Center at the Institute of High Energy Physics, Beijing, for their outstanding scientific efforts. The work of the BES Collaboration was supported in part by the National Natural Science Foundation of China under Contract No. 19290400 and the Chinese Academy of Sciences under Contract No. KJ85 (IHEP); by the Department of Energy under Contract No. DE-FG03-92ER40701 (Caltech), DE-FG03-93ER40788 (Colorado State University), DEAC02- 76ER03069 (MIT), DE-AC03-76SF00515 (SLAC), DE-FG03-91ER40679 (UC Irvine), DE-FG03-94ER40833 (U Hawaii), DE-FG03-95ER40925 (UT Dallas); by the U.S. National Science Foundation, Grant No. PHY9203212 (University of Washington); and by the Texas National Research Laboratory Commission under Contract Nos. RGFY91B5, RGFY92B5 (Colorado State), and RCFY93-316H (UT Dallas).
Funding AgencyGrant Number
National Natural Science Foundation of China19290400
Chinese Academy of SciencesKJ85
Department of Energy (DOE)DE-FG03-92ER40701
Department of Energy (DOE)DE-FG03-93ER40788
Department of Energy (DOE)DEAC02- 76ER03069
Department of Energy (DOE)DE-AC03-76SF00515
Department of Energy (DOE)DE-FG03-91ER40679
Department of Energy (DOE)DE-FG03-94ER40833
Department of Energy (DOE)DE-FG03-95ER40925
Texas National Research Laboratory CommissionRGFY91B5
Texas National Research Laboratory CommissionRGFY92B5
Texas National Research Laboratory CommissionRCFY93-316H
Issue or Number:7
Classification Code:PACS: 13.65.+i, 14.40.Gx
Record Number:CaltechAUTHORS:20120117-125301265
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Official Citation:Search for ψ(2S) production in e+e- annihilations at 4.03 GeV J. Z. Bai et al. ((BES Collaboration)) pp. 3854-3859
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28810
Deposited By: Ruth Sustaita
Deposited On:17 Jan 2012 22:19
Last Modified:09 Nov 2021 17:00

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