1. Study of the ωπ+ system
- Author
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Sergey S.A. Polovnikov, B. Bencheikh, A. Alde, Petr P.M. Shagin, Jean Pierre Peigneux, V.P. Sugonyaev, Susumu Inaba, Yu.D. Prokoshkin, M. Boutemeur, A.A. Lednev, A.V. Singovsky, E. G. Chikovani, Makoto Kobayashi, Sergey Donskov, M. D. Tabidze, S. A. Sadovsky, G.V. Khaustov, Jean-Pierre Stroot, Freddy Binon, Alexander Inyakin, Alexei A.V. Kulik, Charles Bricman, Vassili Kachanov, T. Nakamura, M. Gouanère, Tsuneaki Tsuru, V.D. Samoylenko, A.V. A.V. Shtannikov, M. Poulet, Greg Landsberg, Edward E.A. Knapp, and Kunio Takamatsu
- Subjects
Physics ,Physics and Astronomy (miscellaneous) ,Meson ,Physique ,Nuclear Theory ,Elementary particle ,Astronomie ,Omega ,Cross section (geometry) ,Nuclear physics ,Mass spectrum ,Field theory (psychology) ,High Energy Physics::Experiment ,Quantum field theory ,Nuclear Experiment ,Engineering (miscellaneous) ,Excitation - Abstract
The mass spectra of the ωπ0 system, produced in π-p charge-exchange reactions at 38 GeV/c and 100 GeV/c, show a new neutral state with a mass of 2200±20 MeV and a width of 260±50 MeV. Like ρ3(1690), this meson, X(2200), is produced through one-pion-exchange. X(2200)JPC is likely 1--. It might be a 23D1 radial-orbital excitation of ρ0. Its production cross section falls with energy quadratically, in agreement with one-pion-exchange. The cross sections for b1(1235) and ρ3(1690) production have also been measured; their energy dependences have been determined. © 1992 Springer-Verlag., SCOPUS: ar.j, info:eu-repo/semantics/published
- Published
- 1992