Partial-wave analysis of the ??0-system at high masses

Autor: Valentine Sugonyaev, M. Gouanère, Sergey S.A. Sadovsky, G.V. Khaustov, Sergey Donskov, Petr P.M. Shagin, Freddy Binon, V.D. Samoylenko, Teruo Nakamura, V. A. Lishin, Alexei A.V. Kulik, Sergey S.A. Polovnikov, Vasilij V.A. Kachanov, Makoto Kobayashi, A.V. Singovsky, T. Kinashi, Andrey Lednev, Yu.D. Prokoshkin, Greg Landsberg, A.V. A.V. Shtannikov, Jean Pierre Peigneux, M. Poulet, A. A. Kondashov, Kunio Takamatsu, Jean-Pierre Stroot, Alexandre A.V. Inyakin, D. Alde, Tsuneaki Tsuru, V.A. Polyakov, C. Bricman, Madjid Boutemeur, A.V. Dolgopolov, Susumu Inaba, Edward E.A. Knapp

Publikováno v: Zeitschrift f�r Physik C Particles and Fields. 66:379-383

Recent results on ωπ0 partial-wave analysis from the GAMS Collaboration are presented. A partial-wave analysis of the 38 GeV/c π-p charge exchange data confirmed the existence of theρ(2200) radial-orbital excitation of theρ(770) ground-state obs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0c3945326c400c52ca56652d77be289
https://doi.org/10.1007/bf01556363

Measurement of the ω→ηγ decay rate

Autor: Jean-Pierre Stroot, V. A. Lishin, Jean Pierre Peigneux, M. Poulet, A. A. Kondashov, Valentine Sugonyaev, V.A. Polyakov, Sergey S.A. Sadovsky, Petr P.M. Shagin, V.D. Samoylenko, Sergey Donskov, G.V. Khaustov, Yu.D. Prokoshkin, Madjid Boutemeur, M. Gouanère, C. Bricman, Vasilij V.A. Kachanov, Alexandre A.V. Inyakin, Edward E.A. Knapp, A.V. A.V. Shtannikov, A.V. Singovsky, Andrey Lednev, D. Alde, Sergey S.A. Polovnikov, Alexei A.V. Kulik, Freddy Binon, Greg Landsberg

Publikováno v: Il Nuovo Cimento A. 107:1799-1805

The branching ratio of the rare radiative decay ω→ηγ has been measured: BR(ω→ηγ)=(8.3±2.1)·10−4. The experiment was performed at the IHEP (Serpukhov) accelerator with 38 GeV/c incident pions in the chargeexchange reaction π-p→ωn the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f19e71be8b8ae02ce23a919490a00a32
https://doi.org/10.1007/bf02823573

Production mechanism of the X (1740) meson

Autor: Edward E.A. Knapp, Jean-Pierre Stroot, D. Alde, Alexei A.V. Kulik, Petr P.M. Shagin, A.A. Lednev, Sergey S.A. Polovnikov, C. Bricman, Alexander Inyakin, M. Poulet, G.V. Khaustov, Greg Landsberg, V.P. Sugonyaev, Freddy Binon, Vassili Kachanov, Sergey Donskov, M. Gouanère, D. Prokoshkin Yu, V.D. Samoylenko, S. A. Sadovsky, M. Boutemeur, Jean Pierre Peigneux, A.V. Singovsky, A.V. A.V. Shtannikov

Publikováno v: Physics Letters B
Physics Letters B, Elsevier, 1994, 284, pp.457-460
Physics letters. Section B, 284 (3-4
Physics Letters B, Elsevier, 1992, 284, pp.457-460

New data from π-p charge-exchange at 38 GeV/c confirm the existence of the narrow X (1740) meson, observed in its ηη decay mode. The upper limit on its width is 80 MeV. It is not observed decaying into either η′η, or π0π0. This meson is prod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ff572c17337697621b31f12122b35f2
https://doi.org/10.1016/0370-2693(92)90461-c

Observation of the ω→π0π0γ decay

Autor: Petr P.M. Shagin, Freddy Binon, G.V. Khaustov, V. A. Lishin, S. A. Sadovsky, M. Poulet, A. A. Kondashov, M. Gouanère, Edward E.A. Knapp, Greg Landsberg, Madjid Boutemeur, V A. Polovnikov, Jean-Pierre Stroot, V.D. Samoylenko, V.P. Sugonyaev, Alexander Inyakin, Vassili Kachanov, S A. Polyakov, Alexei A.V. Kulik, D. Alde, Charles Bricman, Sergey Donskov, A.A. Lednev, D. Prokoshkin Yu, Jean Pierre Peigneux, A.V. A.V. Shtannikov, A.V. Singovsky

Publikováno v: Physics Letters B. 340:122-124

The rare radiative decay ω → π 0 π 0 γ has been detected with the GAMS-2000 multiphoton spectrometer at the IHEP 70 GeV accelerator. The ω → π 0 γ decay events have been used for normalization. The measured branching ratio is BR( ω → π

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3867c43905418a79e4a9e7faf8124eec
https://doi.org/10.1016/0370-2693(94)91307-2

Study of the ωπ+ system

Autor: 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, Kunio Takamatsu

Publikováno v: Zeitschrift für Physik. C, Particles and fields, 54 (4

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-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ff6a1be2482d7739ec8a0e41c1f7bfd
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/181727