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Measurement of γγ widths of charmonium states

  • Author(s): Chen, WY
  • McIlwain, RL
  • Miller, DH
  • Ng, CR
  • Schaffner, SF
  • Shibata, EI
  • Yao, WM
  • Sparks, K
  • Thorndike, EH
  • Wang, CH
  • Alam, MS
  • Kim, IJ
  • Li, WC
  • Lou, XC
  • Sun, CR
  • Wang, PN
  • Zoeller, MI
  • Bortoletto, D
  • Goldberg, M
  • Horwitz, N
  • Jain, V
  • Mestayer, MD
  • Moneti, GC
  • Sharma, V
  • Shipsey, IPJ
  • Skwarnicki, T
  • Thulasidas, M
  • Csorna, SE
  • Letson, T
  • Alexander, J
  • Artuso, M
  • Bebek, C
  • Berkelman, K
  • Cassel, DG
  • Cheu, E
  • Coffman, DM
  • Crawford, G
  • DeWire, JW
  • Dell, PS
  • Ehrlich, R
  • Galik, RS
  • Gittlman, B
  • Gray, SW
  • Halling, AM
  • Hartill, DL
  • Heltsley, BK
  • Kandaswamy, J
  • Katayama, N
  • Kreinick, DL
  • Lewis, JD
  • Mistry, NB
  • Mueller, J
  • Namjoshi, R
  • Nandi, S
  • Nordberg, E
  • O'Grady, C
  • Peterson, D
  • Pisharody, M
  • Riley, D
  • Sapper, M
  • Silverman, A
  • Stone, S
  • Worden, H
  • Worris, M
  • Sadoff, AJ
  • Avery, P
  • Besson, D
  • Garren, L
  • Yelton, J
  • Bowcock, T
  • Kinoshita, K
  • Pipkin, FM
  • Procario, M
  • Wilson, R
  • Wolinski, J
  • Xiao, D
  • Ammar, R
  • Baringer, P
  • Coppage, D
  • Haas, P
  • Lam, H
  • Jawahery, A
  • Park, CH
  • Kubota, Y
  • Nelson, JK
  • Perticone, D
  • Poling, R
  • Fulton, R
  • Hempstead, M
  • Jensen, T
  • Johnson, DR
  • Kagan, H
  • Kass, R
  • Morrow, F
  • Whitmore, J
  • Wilson, P
  • et al.

Published Web Location

http://10.0.3.248/0370-2693(90)90975-C
No data is associated with this publication.
Abstract

Using the CLEO detector at the Cornell Electron Storage Ring, we have searched for two-photon production of charmonium in four-track final states. We have measured Γγγ(ηc)=5.9+2.1-1.8±1.9 keV, and we have obtained 95% CL upper limits of Γγγ(Xc0)<6.2 keV and Γγγ(Xc2)<1.0 keV. © 1990.

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