| Autor: |
Amelin, D. V., Gavrilov, Yu. G., Gouz, Yu. P., Dorofeev, V. A., Dzhelyadin, R. I., Zaitsev, A. M., Zenin, A. V., Ivashin, A. V., Kachaev, I. A., Kabachenko, V. V., Karyukhin, A. N., Konoplyannikov, A. N., Konstantinov, V. F., Kostyukhin, V. V., Matveev, V. D., Nikolaenko, V. I., Ostankov, A. P., Polyakov, B. F., Ryabchikov, D. I., Solodkov, A. A. |
| Předmět: |
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| Zdroj: |
Physics of Atomic Nuclei; Jul2004, Vol. 67 Issue 7, p1408-1415, 8p |
| Abstrakt: |
Results obtained by investigating the reaction π–p → η′π0n at the VES spectrometer (Institute for High Energy Physics, Protvino) are presented. The effective-mass spectrum and angular distributions of η′π0 events are compared with their counterparts for ηπ0 and η′π– events selected from the same data sample. The ratio R of the branching fractions for the decays of a02(1320) mesons into η′π and ηπ is measured. The result is R = 0.047 ± 0.018, which agrees with the value measured previously for a–2. An investigation of P-wave production in the η′π0 and ηπ0 systems over the effective-mass interval 1.45–1.9 GeV/c2 leads to the conclusion that the coupling of the exotic object π1(1600) to the ρπ channel is suppressed in relation to its coupling to the η′π or the b1(1235)π channel.© 2004 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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