Measurement of γγ widths of charmonium states

W. Y. Chen, R. L. McIlwain, D. H. Miller, C. R. Ng, S. F. Schaffner, E. I. Shibata, W. M. Yao, K. Sparks, E. H. Thorndike, C. H. Wang, M. S. Alam, I. J. Kim, W. C. Li, X. C. Lou, C. R. Sun, P. N. Wang, M. I. Zoeller, D. Bortoletto, M. Goldberg, N. HorwitzV. Jain, M. D. Mestayer, G. C. Moneti, V. Sharma, I. P J Shipsey, Tomasz Skwarnicki, M. Thulasidas, S. E. Csorna, T. Letson, J. Alexander, Marina Artuso, C. Bebek, K. Berkelman, D. G. Cassel, E. Cheu, D. M. Coffman, G. Crawford, J. W. DeWire, P. S. Dell, R. Ehrlich, R. S. Galik, B. Gittlman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, N. B. Mistry, J. Mueller, R. Namjoshi, S. Nandi, E. Nordberg, C. O'Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, A. Silverman, Sheldon Stone, H. Worden, M. Worris, A. J. Sadoff, P. Avery, D. Besson, L. Garren, J. Yelton, T. Bowcock, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, R. Ammar, P. Baringer, D. Coppage, P. Haas, Ha Lam, A. Jawahery, C. H. Park, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, R. Fulton, M. Hempstead, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, P. Wilson

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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 Γγγc)=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.

Original languageEnglish (US)
Pages (from-to)169-174
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume243
Issue number1-2
DOIs
StatePublished - Jun 21 1990

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Chen, W. Y., McIlwain, R. L., Miller, D. H., Ng, C. R., Schaffner, S. F., Shibata, E. I., Yao, W. M., Sparks, K., Thorndike, E. H., Wang, C. H., Alam, M. S., Kim, I. J., Li, W. C., Lou, X. C., Sun, C. R., Wang, P. N., Zoeller, M. I., Bortoletto, D., Goldberg, M., ... Wilson, P. (1990). Measurement of γγ widths of charmonium states. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 243(1-2), 169-174. https://doi.org/10.1016/0370-2693(90)90975-C