학술논문
P-wave charmed mesons in e+e- annihilation
Document Type
article
Author
Avery, P; Besson, D; Garren, L; Yelton, J; Bowcock, T; Kinoshita, K; Pipkin, FM; Procario, M; Wilson, Richard; Wolinski, J; Xiao, D; Ammar, R; Baringer, P; Haas, P; Lam, Ha; Jawahery, A; Park, CH; Nelson, JK; Perticone, D; Poling, R; Chen, W-Y; Dominick, J; McIlwain, RL; Miller, DH; Ng, CR; Schaffner, SF; Shibata, EI; Yao, W-M; Sparks, K; Thorndike, EH; Alam, MS; Kim, IJ; Li, WC; Lou, XC; Sun, CR; Fulton, R; Hempstead, M; Jensen, T; Johnson, DR; Kagan, H; Kass, R; Morrow, F; Whitmore, J; Bortoletto, D; Goldberg, M; Horwitz, N; Mestayer, MD; Moneti, GC; Sharma, V; Shipsey, IPJ; Skwarnicki, T; Csorna, SE; Letson, 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; Katayama, N; 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
Source
Physical Review D. 41(3)
Subject
Language
Abstract
Using the CLEO detector at the Cornell Electron Storage Ring, we have found evidence for L=1 charmed mesons in e+e- annihilations. We observe a D**0 state at mass 2461±3±1 MeV/c2 and width 20-12-10+9+9 MeV/c2 decaying to D+-. We also see an enhancement in the m(D*+-)-m(D*+) mass-difference spectrum and by examining D*+ decay-angle dependence, we see structure consistent with two states decaying to D*+-. We observe a lower-mass state, at mass (2428±3±2) MeV/c2 and width (23-6-4+8+10) MeV/c2, assuming that the higher-mass component is from the decay D**0(2461)D*+-. We present arguments for the spin-parity assignments of these states. We also report observation of candidate L=1 cs» state decaying to D*+Ks0. © 1990 The American Physical Society.