학술논문
Measurement of the isospin mass splitting Ξ+cΞ0c
Document Type
article
Author
Alam, MS; Katayama, N; Kim, IJ; Li, WC; Lou, XC; Sun, CR; Bortoletto, D; Goldberg, M; Horwitz, N; Mestayer, MD; Moneti, GC; Sharma, V; Shipsey, IPJ; Skwarnicki, T; Csorna, SE; Letson, T; Brock, IC; Ferguson, T; Alexander, J; Artuso, M; Bebek, C; Berkelman, K; Cassel, DG; Cheu, E; Coffman, DM; Crawford, G; Dewire, JW; Drell, PS; Ehrlich, R; Galik, RS; Gittelman, B; Gray, SW; Halling, AM; Hartill, DL; Heltsley, BK; Kandaswamy, J; Kowalewski, R; Kreinick, DL; Kubota, Y; 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; Haas, P; Lam, H; Jawahery, A; Park, CH; Perticone, D; Poling, R; Fulton, R; Hempstead, M; Jensen, T; Johnson, DR; Kagan, H; Kass, R; Morrow, F; Whitmore, J; Chen, WY; Dominick, J; McIlwain, RL; Miller, DH; Ng, CR; Shibata, EI; Yao, WM; Sparks, K; Thorndike, EH
Source
Physics Letters B. 226(3-4)
Subject
Language
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. © 1989.