Measurement of the isospin mass splitting Ξ+cΞ0c

M. S. Alam, N. Katayama, I. J. Kim, W. C. Li, X. C. Lou, C. R. Sun, D. Bortoletto, M. Goldberg, N. Horwitz, M. D. Mestayer, G. C. Moneti, V. Sharma, I. P J Shipsey, T. Skwarnicki, S. E. Csorna, T. Letson, I. C. Brock, T. Ferguson, J. Alexander, M. ArtusoC. Bebek, K. Berkelman, D. G. Cassel, Elliott C Cheu, D. M. Coffman, G. Crawford, J. W. Dewire, P. S. Drell, R. Ehrlich, R. S. Galik, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, J. Kandaswamy, R. Kowalewski, D. L. Kreinick, Y. Kubota, 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, S. 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, P. Haas, Ha Lam, A. Jawahery, C. H. Park, D. Perticone, R. Poling, R. Fulton, M. Hempstead, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, W. Y. Chen, J. Dominick, R. L. McIlwain, D. H. Miller, C. R. Ng, E. I. Shibata, W. M. Yao, K. Sparks, E. H. Thorndike

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Abstract

Using the CLEO detector, we present a measurement of the mass of the charged charmed strange baryon Ξ+c and its neutral counterpart the Ξ0c. The Ξ+c is observed through its decay to Ξ-π+π+, and its mass is measured to be (2467±3±4) MeV. The isospin mass splitting of the Ξc system is found to be M(Ξ+c)-M(Ξ0c)=(-5±4±1)MeV.

Original languageEnglish (US)
Pages (from-to)401-404
Number of pages4
JournalPhysics Letters B
Volume226
Issue number3-4
DOIs
StatePublished - Aug 10 1989
Externally publishedYes

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Alam, M. S., Katayama, N., Kim, I. J., Li, W. C., Lou, X. C., Sun, C. R., Bortoletto, D., Goldberg, M., Horwitz, N., Mestayer, M. D., Moneti, G. C., Sharma, V., Shipsey, I. P. J., Skwarnicki, T., Csorna, S. E., Letson, T., Brock, I. C., Ferguson, T., Alexander, J., ... Thorndike, E. H. (1989). Measurement of the isospin mass splitting Ξ+cΞ0c. Physics Letters B, 226(3-4), 401-404. https://doi.org/10.1016/0370-2693(89)91219-7