Resonances in the ωω system.

Autor: 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.
Předmět:
Zdroj: Physics of Atomic Nuclei; Apr2006, Vol. 69 Issue 4, p690-698, 9p, 5 Graphs
Abstrakt: 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]
Databáze: Complementary Index