Observation of a new charmed-strange meson
1989; Elsevier BV; Volume: 230; Issue: 1-2 Linguagem: Inglês
10.1016/0370-2693(89)91672-9
ISSN1873-2445
AutoresH. Albrecht, R. Gläser, G. Harder, A. Krüger, A. Nippe, T. Oest, M. Reidenbach, M. Schäfer, W. Schmidt‐Parzefall, H. Schröder, H.D. Schulz, F. Sefkow, R. Wurth, R.D. Appuhn, A. Drescher, C. Hast, G. Herrera, H. Kolanoski, A. Lange, A. Lindner, R. Mankel, H. Scheck, G. Schweda, B. Spaan, A. Walther, D. Wegener, M. Paulini, K. Reim, U. Volland, H. Wegener, W. Funk, J. Stiewe, S. Werner, S. Ball, John Gabriel, C. Geyer, A. Hölscher, W. Hofmann, B. Hölzer, S. Khan, J. Spengler, C. Charlesworth, K. W. Edwards, W.R. Frisken, H. Kapitza, P. Krieger, R. Kutschke, D. B. MacFarlane, K. W. McLean, R. S. Orr, J. A. Parsons, P. M. Patel, J.D. Prentice, S. C. Seidel, J.D. Swain, G. Tsipolitis, T.-S. Yoon, R. Davis, T. Ruf, S. Schael, K. R. Schubert, K. Strahl, R. Waldi, S. Weseler, B. Bosˇtjancˇicˇ, G. Kernel, P. Krizˇan, E. Krizˇnicˇ, M. Plesˇko, H.I. Cronström, L. Jönsson, A.W. Nilsson, A. Babaev, M. Danilov, B. Fominykh, A. Golutvin, I. Gorelov, V. Lubimov, A. Rostovtsev, A. Semenov, S. Semenov, V. Shevchenko, V. Soloshenko, V. Tchistilin, I. Tichomirov, Yu. Zaitsev, R. Childers, C.W. Darden,
Tópico(s)High-Energy Particle Collisions Research
ResumoUsing the ARGUS detector at the DORIS II e+e− storage ring at DESY, we have obtained evidence for a new charmed-strange meson which decays into D*+K0. Its mass is observed to be 2535.9±0.6±2.0 MeV/c2 and its width to be less than 4.6 MeV/c2 at the 90% confidence level. No structure is observed at this mass in the D+K0 invariant mass spectrum, which suggests that an unnatural spin-parity is preferred.
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