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Your search keyword '"Dorofeev, V."' showing total 9 results
Start Over Author "Dorofeev, V." Journal physics of atomic nuclei
9 results on '"Dorofeev, V."'

2. Study of meson systems with isospin I = 3/2 at the VES setup

Author

Guz, Yu. P., Dorofeev, V. A., Ekimov, A. V., Zaitsev, A. M., Ivashin, A. V., Kalendarev, V. V., Karyukhin, A. N., Kachaev, I. A., Konstantinov, V. F., Matveev, V. D., Nikolaenko, V. I., Plekhanov, A. N., Polyakov, B. F., Ryabchikov, D. I., Solovyanov, O. V., Solodkov, A. A., Kholodenko, M. S., and Khokhlov, Yu. A.

Published
2013
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3. Resonances in the ωω system

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., Solovianov, O. V., Solodkov, A. A., Solodkov, A. V., Starchenko, E. A., Fenyuk, A. B., and Khokhlov, Yu. A.

Published
2006
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4. Measurement of form factors for the decay η′ å ηπ − π +

Author

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., Solodkov, A. V., Solovianov, O. V., Starchenko, E. A., Fenyuk, A. B., and Khokhlov, Yu. A.

Published
2005
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5. Investigation of hybrid states in the VES experiment at the Institute for High Energy Physics (Protvino)

Author

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., Solodkov, A. V., Solovianov, O. V., Starchenko, E. A., Fenyuk, A. B., and Khokhlov, Yu. A.

Published
2005
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6. Investigation of the reaction π − p → η′π 0 n at the VES spectrometer

Author

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., Solodkov, A. V., Solovianov, O. V., Starchenko, E. A., Fenyuk, A. B., and Khokhlov, Yu. A.

Published
2004
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7. Study of the reaction π- A πππ A at large statistics with VES setup.

Author

Kachaev, I., Dorofeev, V., Ekimov, A., Gotman, V., Ivashin, A., Kalendarev, V., Khokhlov, Yu., Kholodenko, M., Konstantinov, V., Matveev, V., Mikhasenko, M., Nikolaenko, V., Plekhanov, A., Ryabchikov, D., Salomatin, Yu., Sugonyaev, V., Volkov, E., and Zaitsev, A.

Subjects
NUCLEAR reactions, BERYLLIUM, TARGETS (Nuclear physics), DENSITY matrices, PARAMETER estimation
Abstract

Partial wave analysis of the π- A πππ system produced by 29 GeV/ cπ beam on a beryllium target is presented. About 30 × 10 |events in the wide t′|range 0-0.8 GeV/ c are collected with upgraded VES setup. The size of the data sample is 2.5 times larger than one previously analyzed by VES. Data are analyzed using formalism of the density matrix with unlimited rank. We discuss status of the a(1420) a(1700) a(1875) states and a structure of exotic ρ(770)π P-wave with J = 1. Parameters of a(1875) are estimated as M = 1985 ± 20 MeV/ c, Γ = 200 ± 50 MeV/ c (preliminary). [ABSTRACT FROM AUTHOR]

Published
2015
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8. Measurement of Form Factors for the Decay η′ → ηπ–π+.

Author

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., and Solodkov, A. A.

Subjects
RADIOACTIVE decay, NUCLEAR reactions, PARAMETER estimation, PARTICLE beams, PARTICLES (Nuclear physics), NUCLEAR physics
Abstract

Form factors measured for the decay η′ → ηπ–π+ in π–A → η′π–A* reactions at a beam momentum of pπ = 28 GeV are presented. The distribution in Dalitz variables for 7000 decay events is described well within a linear and a nonlinear parametrization of the relavant matrix element. The slope parameter in the variable y differs from zero significantly. It is Reα = –0.072 ± 0.012(stat.) ± 0.006(syst.) in the linear and a = –0.120 ± 0.027(stat.) ± 0.015(syst.) in the nonlinear parametrization. In this decay, the C-violation parameter is compatible with zero, c = 0.021 ± 0.024.© 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]

Published
2005
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9. Investigation of the Reaction π–p → η′π0n at the VES Spectrometer.

Author

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., and Solodkov, A. A.

Subjects
SPECTROMETERS, EFFECTIVE mass (Physics), ANGULAR distribution (Nuclear physics), PHYSICS research, COUPLING constants
Abstract

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]

Published
2004
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