학술논문
Resonances in the ωω system.
Document Type
Article
Author
Amelin, D. V.; Bugg, D. V.; Gavrilov, Yu. G.; Gouz, Yu. P; Dzhelyadin, R. I.; Dorofeev, V. A.; Zaitsev, A. M.; Zenin, A. V.; Ivashin, A. V.; Kabachenko, V. V.; Karyukhin, A. N.; Kachaev, I. A.; Konoplyannikov, A. N.; Konstantinov, V. F.; Kostyukhin, V. V.; Matveev, V. D.; Nikolaenko, V. I.; Ostankov, A. P.; Polyakov, B. F; Ryabchikov, D. I.
Source
Subject
*PARTICLES (Nuclear physics)
*MESON resonance
*CHARGE exchange
*ANGULAR distribution (Nuclear physics)
*ANGULAR momentum (Nuclear physics)
*BEAM emittance (Nuclear physics)
INSTITUTE for High Energy Physics (Moscow, Russia)
*
*
*
*
*
Language
ISSN
1063-7788
Abstract
Results of a partial-wave analysis for the reaction π − → ωωn studied at the VES spectrometer (Institute for High Emergy Physics, Protvino) are presented. The behavior of the J PC = 2++ amplitudes in the ωω system is described by the f 2(1565) and f 2(1910) resonances, whose parameters were fixed at M = 1.590 ± 0.010 GeV and Γ = 0.140 ± 0.011 GeV for the former and at M = 1.890 ± 0.010 GeV and Γ = 0.165 ± 0.019 GeV for the latter. The decay f 4(2050) → ωω was observed at parameters values of M = 1.960 ± 0.015 GeV, Γ = 0.290 ± 0.020 GeV. [ABSTRACT FROM AUTHOR]