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106 results on '"Stroot, J P."'

1. Study of the $\eta\pi^o$ system in the mass range up to 1200 MeV

Author

Alde, D., Binon, F. G., Boutemeur, M., Bricman, C., Donskov, S. V., Gouanere, M., Inyakin, A. V., Inaba, S., Kachanov, V. A., Khaustov, G. V., Knapp, E. A., Kondashov, A. A., Lednev, A. A., Lishin, V. A., Peigneux, J. P., Poulet, M., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Singovsky, A. V., Sobol, A. E., Stroot, J. P., Sugonyaev, V. P., Takamatsu, K., and Tsuru, T.

Subjects
High Energy Physics - Experiment
Abstract

The reaction $\pi^-p \to \eta\pi^o n$ has been studied with GAMS-2000 spectrometer in the secondary 38 GeV/c $\pi^-$-beam of the IHEP U-70 accelerator. Partial wave analysis of the reaction has been performed in the $\eta\pi^o$ mass range up to 1200 MeV. The $a_0(980)$-meson is seen as a sharp peak in S-wave. The $t$-dependence of $a_0(980)$ production cross section has been studied. Dominant production of the $a_0(980)$ at a small transfer momentum $t$ confirms the hypothesis of Achasov and Shestakov about significant contribution of the $\rho_2$ exchange ($I^GJ^{PC}=1^+2^{--}$) in the mechanism of $a_0(980)$ meson production in $t$-channel of the reaction., Comment: 4 pages, 3 figures, talk given at HADRON'97

Published
1997
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4. Partial-wave analysis of the ωπ0-system at high masses

Author

Alde, D., Binon, F. G., Boutemeur, M., Bricman, C., Dolgopolov, A. V., Donskov, S. V., Gouanere, M., Inaba, S., Inyakin, A. V., Kachanov, V. A., Khaustov, G. V., Kinashi, T., Knapp, E. A., Kobayashi, M., Kondashov, A. A., Kulik, A. V., Landsberg, G. L., Lednev, A. A., Lishin, V. A., Nakamura, T., Peigneux, J. P., Polovnikov, S. A., Polyakov, V. A., Poulet, M., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Stroot, J. P., Sugonyaev, V. P., Takamatsu, K., Tsuru, T., and GAMS Collaboration (Joint CERN-IHEP Experiment)

Published
1995
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5. Study off o (995) resonance in the π0π0 decay channel

Author

Alde, D., Binon, F. G., Boutemeur, M., Bricman, C., Donskov, S. V., Gouanère, M., Inyakin, A. V., Kachanov, V. A., Khaustov, G. V., Knapp, E. A., Kondashov, A. A., Kulik, A. V., Landsberg, G. L., Lednev, A. A., Lishin, V. A., Peigneux, J. P., Polovnikov, S. A., Polyakov, V. A., Poulet, M., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Stroot, J. P., Sugonyaev, V. P., and GAMS Collaboration (Joint CERN-IHEP experiment)

Published
1995
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7. Measurement of the ω→ηγ decay rate

Author

Donskov, S. V., Inyakin, A. V., Kachanov, V. A., Khaustov, G. V., Kondashov, A. A., Kulik, A. V., Landsberg, G. L., Lednev, A. A., Lishin, V. A., Polovnikov, S. A., Polyakov, V. A., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Sugonyaev, V. P., Bricman, C., Stroot, J. P., Binon, F. G., Gouanére, M., Peigneux, J. P., Poulet, M., Alde, D., Knapp, E., Boutemeur, M., and GAMS Collaboration, SERP-E-140

Published
1994
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8. Partial-wave analysis of the ωπ0 system at high masses

Author

Alde, D., Binon, F. G., Bricman, C., Boutemeur, M., Donskov, S. V., Gouanère, M., Inaba, S., Inyakin, A. V., Kachanov, V. A., Khaustov, G. V., Knapp, E. A., Kobayashi, M., Kondashov, A. A., Kulik, A. V., Lanberg, G. L., Lednev, A. A., Lishin, V. A., Nakamura, T., Peigneux, J. P., Polovnikov, S. A., Polyakov, V. A., Poulet, M., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Stroot, J. P., Sugonyaev, V. P., Takamatsu, K., Tsuru, T., Landsberg, G., and Gams Collaboration

Published
1994
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9. Model-independent measurement ofω→ηγ decay branching ratio

Author

Alde, D., Binon, F. G., Boutemeur, M., Bricman, C., Donskov, S. V., Gouanère, M., Inyakin, A. V., Kachanov, V. A., Khaustov, G. V., Knapp, E. A., Kondashov, A. A., Kulik, A. V., Landsberg, G. L., Lednev, A. A., Lishin, V. A., Peigneux, J. P., Polovnikov, S. A., Polyakov, V. A., Poulet, M., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Stroot, J. P., and Sugonyaev, V. P.

Published
1994
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10. Study of theω π + system

Author

Alde, A., Bencheikh, B., Binon, F. G., Boutemeur, M., Bricman, C., Chikovani, E. G., Donskov, S. V., Gouanère, M., Inaba, S., Inyakin, A. V., Kachanov, V. A., Khaustov, G. V., Knapp, E. A., Kobayashi, M., Kulik, A. V., Landsberg, G. L., Lednev, A. A., Nakamura, T., Peigneux, J. P., Polovnikov, S. A., Poulet, M., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Stroot, J. P., Sugonyaev, V. P., Tabidze, M. D., Takamatsu, K., Tsuru, T., IHEP Collaboration (Joint CERN-IHEP experiment), IISN Collaboration (Joint CERN-IHEP experiment), LANL Collaboration (Joint CERN-IHEP experiment), LAPP Collaboration (Joint CERN-IHEP experiment), and KEK Collaboration (Joint CERN-IHEP experiment)

Published
1992
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11. Studies of the reactionπ − p→η ′ π 0 n at 38 and 100 GeV/c

Author

Alde, D., Binon, F. G., Boutemeur, M., Bricman, C., Donskov, S. V., Gouanère, M., Inyakin, A. V., Kachanov, V. A., Khaustov, G. V., Knapp, E. A., Kulik, A. V., Landsberg, G. L., Lednev, A. A., Peigneux, J. P., Polovnikov, S. A., Poulet, M., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Stroot, J. P., Sugonyaev, V. P., IHEPCollaboration (Joint CERN-IHEP experiment), IISN Collaboration (Joint CERN-IHEP experiment), LANL Collaboration (Joint CERN-IHEP experiment), and LAPP Collaboration (Joint CERN-IHEP experiment)

Published
1992
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12. Small-momentum-transfer K−p charge exchange scattering at 30 GeV/c

Author

Binon, F., Lagnaux, J. P., Roosen, R., Stroot, J. P., Davydov, V. A., Donskov, S. V., Inyakin, A. V., Kakauridze, D. B., Kachanov, V. A., Khaustov, G. V., Kuljk, A. V., Lednev, A. A., Maisheev, V. A., Melnik, Yu. M., Mikhailov, Yu. V., Prokoshkin, Yu. D., Rodnov, Yu. V., Starzev, A. V., Dufournaud, J., Gouanère, M., Peigneux, J. P., Duteil, P., and IHEP-IISN-LAPP Collaboration

Published
1981
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13. Production of pseudoscalar mesons in 300 GeV central π+ N collisions

Author

Alde, D., Bellazzini, R., Binon, F. G., Boutemeur, M., Brez, A., Bricman, C., Donskov, S. V., Gouanère, M., Inyakin, A. V., Kachanov, V. A., Khaustov, G. V., Knapp, E. A., Kulik, A. V., Lednev, A. A., Massai, M. M., Massonnet, L., Peigneux, J. P., Prokoshkin, Yu. D., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Stroot, J. P., Sugonyaev, V. P., and Torquati, M. R.

Published
1989
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15. Neutral decays ofη′(958)

Author

Alde, D., Binon, F. G., Bricman, C., Donskov, S. V., Gouanere, M., Inyakin, A. V., Kachanov, V. A., Kakauridze, D. B., Khaustov, G. V., Knapp, E. A., Kulik, A. V., Lagnaux, J. P., Lednev, A. A., Mikhailov, Yu. V., Mouthuy, Th., Peigneux, J. P., Prokoshkin, Yu. D., Rodnov, Yu. V., Sadovsky, S. A., Samoylenko, V. D., Shagin, P. M., Shtannikov, A. V., Singovsky, A. V., Stroot, J. P., and Sugonyaev, V. P.

Published
1987
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16. Small |t|π− p charge exchange scattering at 40 GeV/c

Author

Binon, F., Davydov, V. A., Donskov, S. V., Dufournaud, J., Duteil, P., Gouanère, M., Inyakin, A. V., Kachanov, V. A., Kakauridze, D. B., Khaustov, G. V., Khodirev, Yu. S., Kulik, A. V., Lagnaux, J. P., Lednev, A. A., Mikhailov, Yu. V., Peigneux, J. P., Prokoshkin, Yu. D., Rodnov, Yu. V., Roosen, R., Sadovsky, S. A., Starzev, A. V., Stroot, J. P., Sugonyaev, V. P., and Yakutin, A. E.

Published
1981
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17. η puzzle: the decay η →π°γγ

Author

Davtdov, V. A., Donskov, S. V., Inyakin, A. V., Kachanov, V. A., Kakauridze, D. B., Khaustov, G. V., Kulik, A. V., Lednev, A. A., Mikhailov, Yu. V., Prokoshkin, Yu. D., Rodnov, Yu. V., Sadovsky, S. A., Singovskt, A. V., Starzev, A. V., Binon, F., Beicman, C., Lagnaux, J. P., Stroot, J. P., Dufournaud, J., Gouanère, M., Peigneux, J. P., Sugonyaev, V. P., Duteil, P., and IHEP-IISN-LAPP Collaboration

Published
1981
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18. Neutral decays of the η-meson

Author

Alde, D., Binon, F., Bricman, C., Donskov, S. V., Duteil, P., Gouanère, M., Inyakin, A. V., Kakauridze, D. B., Kachanov, V. A., Khaustov, G. V., Kulik, A. V., Lagnaux, J. P., Lednev, A. A., Maisheev, V. A., Melnik, Yu. M., Mikhailov, Yu. V., Mouthuy, Th., Peigneux, J. P., Possoz, A., Prokoshkin, Yu. D., Rodnov, Yu. V., Sadovsky, S. A., Shagin, P. M., Sillou, D., Singovsky, A. V., Stroot, J. P., and Sugonyaev, V. P.

Published
1984
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19. Observation of the decay η → π0γγ

Author

Binon, F., Bricman, C., Davydov, V. A., Donskov, S. V., Dufournaud, J., Duteil, P., Gouanère, M., Inyakin, A. V., Kachanov, V. A., Kakauridze, D. B., Khaustov, G. V., Kulik, A. V., Lagnaux, J. P., Lednev, A. A., Mikhailov, Yu. V., Peigneux, J. P., Prokoshkin, Yu. D., Rodnov, Yu. V., Sadovsky, S. A., Singovsky, A. V., Starzev, A. V., Stroot, J. P., and Sugonyaev, V. P.

Published
1982
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20. Study of π−p→η′ηn in a search for glueballs

Author

Binon, F., Bricman, C., Donskov, S. V., Duteil, P., Gouanère, M., Inyakin, A. V., Khaustov, G. V., Kulik, A. V., Lagnaux, J. P., Lednev, A. A., Mikhailov, Yu. V., Mouthuy, Th., Peigneux, J. P., Possoz, A., Prokoshkin, Yu. D., Rodnov, Yu. V., Sadovsky, S. A., Shagin, P. M., Sillou, D., Singovsky, A. V., Stroot, J. P., and Sugonyaev, V. P.

Published
1984
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21. Observation of a spin-6 neutral meson r(2510)

Author

Donskov, S. V., Inyakin, A. V., Kachanov, V. A., Kakauridze, D. B., Khaustov, G. V., Kulik, A. V., Lednev, A. A., Prokoshkin, Yu. D., Rodnov, Yu. V., Sadovsky, S. A., Singovsky, A. V., Mikhailov, Yu. V., Sugonyaev, V. P., Binon, F., Lagnaux, J. P., Stroot, J. P., Gouanère, M., Peigneux, J. P., Duteil, P., IHEP Collaboration, IISN Collaboration, and LAPP Collaboration

Published
1984
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24. A study of the $f_{0}(1370), f_{0}(1500), f_{0}(2000)$ and $f_{2}(1950)$ observed in centrally produced 4$\pi$ final states

Author

Barberis, D., Binon, F G., Close, F E., Danielsen, K M., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinson, J B., Kirk, A., Kondashov, a A., Lednev, a A., Lenti, V., Minashvili, I., Peigneux, J P., Romanovsky, V., Russakovich, N., Semenov, A., Sene, M., Shagin, P M., Shimizu, H., Singovsky, a V., Sobol, A., Stassinaki, M., Stroot, J P., Takamatsu, K., Tsuru, T., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
Internet, New Product Development, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Market Research, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Innovation, Idea Generation
Abstract

The production and decay properties of the f0(1370), f0(1500), f0(2000) and f2(1950) have been studied in central pp interactions at 450 GeV/c. The dPT, phi and |t| distributions of these resonances are presented. For the J = 0 states, the f0(1370) and f0(2000) have similar dPT and phi dependences. These are different to the dPT and phi dependences of the f0(980), f0(1500) and f0(1710). For the J = 2 states the f2(1950) has different dependences to the f2(1270) and f2'(1520). This shows that the dPT and phi dependences are not just J phenomen

Published
2000

25. A study of the $\eta\pi^{+}\pi^{-}$ channel produced in central pp interactions at 450 GeV/c

Author

Barberis, D., Binon, F G., Close, F E., Danielsen, K M., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinson, J B., Kirk, A., Kondashov, A A., Lednev, A A., Lenti, V., Minashvili, I., Peigneux, J P., Romanovsky, V., Russakovich, N., Semenov, A., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Stassinaki, M., Stroot, J P., Takamatsu, K.., Tsuru, T., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
scientific information, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], standards, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], electronique document
Abstract

The reaction pp -> pf (eta pi pi) ps has been studied at 450 GeV/c. There is clear evidence for an a2(1320)pi decay mode of the eta2(1645) and eta2(1870). In addition, there is evidence for an a0(980)pi$ decay mode of both resonances and an f2(1270)eta decay mode of the eta2(1870). No evidence is found for a JPC = 2++ a2(1320)pi wave.

Published
2000

26. A study of the $\eta\eta'$ and $\eta'\eta'$ channels produced in central pp interactions at 450 GeV/c

Author

Barberis, D., Binon, F G., Close, F E., Danielsen, K M., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinson, J B., Kirk, A., Kondashov, a A., Lednev, a A., Lenti, V., Minashvili, I., Peigneux, J P., Romanovsky, V., Russakovich, N., Semenov, A., Shagin, P M., Shimizu, H., Singovsky, a V., Sobol, A., Stassinaki, M., Stroot, J P., Takamatsu, K.., Tsuru, T., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Abstract

The reactions pp -> pf (X0) ps, where X0 is observed decaying to eta etaprime and etaprime etaprime, have been studied at 450 GeV/c. This is the first time that these channels have been observed in central production and only the second time that the etaprime etaprime channel has been observed in any production mechanism. In the eta etaprime channel there is evidence for the f0(1500) and a peak at 1.95 GeV. The etaprime etaprime channel shows a peak at threshold which is compatible with having JPC = 2++ and spin projection JZ = 0.

Published
2000

27. A study of the centrally produced $\eta\pi^{0}$ and $\eta\pi^{-}$ systems in pp interactions at 450 GeV/c

Author

Barberis, D., Binon, F G., Close, F E., Danielsen, K M., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinson, J B., Kirk, A., Kondashov, A A., Lednev, A A., Lenti, V., Minashvili, I., Peigneux, J P., Romanovsky, V., Russakovich, N., Semenov, A., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Stassinaki, M., Stroot, J P., Takamatsu, K.., Tsuru, T., Villalobos Baillie, O., Votruba, M F., Yasu, Y., BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and WA102

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment
Abstract

A partial wave analysis of the centrally produced eta pi0 and eta pi- channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. Clear a0(980) and a2(1320) signals have been observed in S and D+ waves respectively. The dPT, phi and |t| distributions of these resonances are presented.

Published
2000

28. A study of the $\omega\omega$ channel produced in central pp interactions at 450 GeV/c

Author

Barberis, D., Binon, F G., Close, F E., Danielsen, K M., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinson, J B., Kirk, A., Kondashov, a A., Lednev, a A., Lenti, V., Minashvili, I., Peigneux, J P., Romanovsky, V., Russakovich, N., Semenov, A., Shagin, P M., Shimizu, H., Singovsky, a V., Sobol, A., Stassinaki, M., Stroot, J P., Takamatsu, K.., Tsuru, T., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

The reaction pp -> pf (omega omega) ps has been studied at 450 GeV/c and a spin analysis of the omega omega channel has been performed for the first time in central production. Evidence is found for the f2(1910) in the JPC = 2++ wave with spin projection JZ = 2. This is the only state observed in central production with spin projection JZ = 2. Its dPT and phi dependencies are similar to those observed for other glueball candidates. In addition, evidence is found for a state with JPC = 4++ consistent with the f4(2300). The f0(2000), previously observed in the rho rho final state, is confirmed. The reaction pp → p f ( ωω ) p s has been studied at 450 GeV/c and a spin analysis of the ωω channel has been performed for the first time in central production. Evidence is found for the f 2 (1910) in the J PC =2 ++ wave with spin projection J Z =2. This is the only state observed in central production with spin projection J Z =2. Its dP T and φ dependencies are similar to those observed for other glueball candidates. In addition, evidence is found for a state with J PC =4 ++ consistent with the f 4 (2300). The f 0 (2000), previously observed in the ρρ final state, is confirmed. The reaction pp -> pf (omega omega) ps has been studied at 450 GeV/c and a spin analysis of the omega omega channel has been performed for the first time in central production. Evidence is found for the f2(1910) in the JPC = 2++ wave with spin projection JZ = 2. This is the only state observed in central production with spin projection JZ = 2. Its dPT and phi dependencies are similar to those observed for other glueball candidates. In addition, evidence is found for a state with JPC = 4++ consistent with the f4(2300). The f0(2000), previously observed in the rho rho final state, is confirmed.

Published
2000

29. A partial wave analysis of the centrally produced $\pi^{+}\pi^{-}$ system in pp interactions at 450 GeV/c

Author

Barberis, D., Beusch, W., Binon, F G., Blick, A M., Close, F E., Danielsen, K M., Dolgopolov, A V., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Inyakin, A V., Ishida, T., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinashi, T., Kinson, J B., Kirk, A., Klempt, W., Kolosov, V., Kondashov, A A., Lednev, A A., Lenti, V., Maljukov, S., Martinengo, P., Minashvili, I., Myklebost, K., Nakagawa, T., Norman, K L., Olsen, J M., Peigneux, J P., Polovnikov, S A., Polyakov, V A., Prokoshkin Yu, D., Romanovsky, V., Rotscheidt, H., Rumyantsev, V., Russakovich, N., Samoylenko, V D., Semenov, A., Sene, M., Sene, R., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Solovjev, A., Stassinaki, M., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tchlatchidze, G., Tsuru, T., Vassiliadis, G., Venables, M., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Abstract

A partial wave analysis of the centrally produced pi+pi- channel has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found. Evidence is found for the f0(980), f0(1300), f0(1500) and fJ(1710) with J = 0 in the the S-wave. The rho(770) is observed dominantly in the P0-wave and the f2(1270) is observed dominantly in the D0-wave. In addition, there is evidence for a broad enhancement in the D-wave below 1 GeV.

Published
1999

30. Investigation of the $\pi^{0}\pi^{0}$ system at a primary momentum of 100 GeV/c by using the GAMS-4000 spectrometer

Author

Alde, D., Binon, F., Boutemeur, M., Bricman, C., Donskov, S V., Gouanere, M., Inaba, S., Inyakin, A V., Kachanov, V A., Khaustov, G V., Knapp, E A., Kondashov, A A., Lednev, A A., Lishin, V A., Peigneux, J P., Poulet, M., Prokoshkin Yu, D., Sadovsky, S A., Samoylenko, V D., Shagin, P M., Singovsky, A V., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tsuru, T., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), GAMS, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1999

31. Beam studies of SAD-150 heavy crystal PWO calorimeter, small angle multiphoton detector of GAMS-4$\pi$ spectrometer

Author

Binon, F G., Blick, A M., Dolgopolov, A V., Donskov, S V., Kachanov, V A., Khaustov, G V., Kolosov, V N., Korzhik, M V., Lednev, A A., Lishin, V A., Peigneux, J.P., Prokoshkin Yu, D., Shagin, P M., Singovsky, A V., Stroot, J P., Sugonyaev, V P., Laboratoire d'Annecy de Physique des Particules (LAPP), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques
Published
1999

32. Study of the reaction $\pi^{-}p \to \eta \pi^{0}n$ at 32, 38 and 100 GeV/c

Author

Alde, D., Binon, F., Blick, a M., Bricman, C., Boutemeur, M., Dolgopolov, a V., Donskov, S V., Gouanere, M., Inaba, S., Inyakin, a V., Khaustov, G V., Kinashi, T., Kobayashi, M., Kolosov, V N., Kondashov, a A., Lednev, a A., Mikhailov, Yuv., Nakagawa, T., Nakamura, T., Peigneux, J P., Polovnikov, S A., Polyakov, V A., Prokoshkin Yu, D., Samoylenko, V D., Shagin, P M., Shimizu, H., Singovsky, a V., Sobol, a E., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tsuru, T., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), GAMS, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1999

33. A partial wave analysis of the centrally produced $\pi^{0}\pi^{0}$ system in pp interactions at 450 GeV/c

Author

Barberis, D., Beusch, W., Binon, F G., Blick, A M., Close, F E., Danielsen, K M., Dolgopolov, A V., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Inyakin, A V., Ishida, T., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinashi, T., Kinson, J B., Kirk, A., Klempt, W., Kolosov, V., Kondashov, A A., Lednev, A A., Lenti, V., Maljukov, S., Martinengo, P., Minashvili, I., Myklebost, K., Nakagawa, T., Norman, K L., Olsen, J M., Peigneux, J P., Polovnikov, S A., Polyakov, V A., Prokoshkin Yu, D., Romanovsky, V., Rotscheidt, H., Rumyantsev, V., Russakovich, N., Samoylenko, V D., Semenov, A., Sene, M., Sene, R., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Solovjev, A., Stassinaki, M., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tchlatchidze, G., Tsuru, T., Vassiliadis, G., Venables, M., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment
Abstract

A partial wave analysis of the centrally produced pi0pi0 channel has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found. Evidence is found for the f0(980), f0(1300) and f0(1500) in the the S-wave. and the f2(1270) is observed dominantly in the D0-wave. In addition, there is evidence for a broad enhancement in the D-wave below 1 GeV.

Published
1999

34. A partial wave analysis of the centrally produced $K^{+}K^{-}$ and $K^{0}_{s}K^{0}_{s}$ systems in pp interactions at 450 GeV/c and new information on the spin of the $f_{1}$ (1710)

Author

Barberis, D., Beusch, W., Binon, F G., Blick, A M., Close, F E., Danielsen, K M., Dolgopolov, A V., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Inyakin, A V., Ishida, T., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinashi, T., Kinson, J B., Kirk, A., Klempt, W., Kolosov, V., Kondashov, A A., Lednev, A A., Lenti, V., Maljukov, S., Martinengo, P., Minashvili, I., Myklebost, K., Nakagawa, T., Norman, K L., Olsen, J M., Peigneux, J P., Polovnikov, S A., Polyakov, V A., Prokoshkin Yu, D., Romanovsky, V., Rotscheidt, H., Rumyantsev, V., Russakovich, N., Samoylenko, V D., Semenov, A., Sene, M., Sene, R., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Solovjev, A., Stassinaki, M., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tchlatchidze, G., Tsuru, T., Vassiliadis, G., Venables, M., Villalobos Baillie, O., Votruba, M F., Yasu, Y., BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and WA102

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Abstract

A partial wave analysis of the centrally produced K+K- and K0K0 channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found in each channel. The striking feature is the observation of peaks in the S-wave corresponding to the f0(1500) and fJ(1710) with J = 0. The D-wave shows evidence for the f2(1270)/a2(1320), the f2(1525) and the f2(2150) but there is no evidence for a statistically significant contribution in the D-wave in the 1.7 GeV mass region.

Published
1999

35. Study of the $\pi^{0}\pi^{0}$-system with the GAMS-4000 spectrometer at 100 GeV/c

Author

Alde, D., Binon, F G., Boutemeur, M., Bricman, C., Donskov, S V., Gouanere, M., InyakinA, V., Inaba, S., Kachanov, V A., Khaustov, G V., Knapp, E A., Kondashov, A A., Lednev, A A., Lishin, V A., Peigneux, J P., Poulet, M., Prokoshkin Yu, D., Sadovsky, S A., Samoylenko, V D., Shagin, P M., Singovsky, A V., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tsuru, T., BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and GAMS

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics - Experiment
Published
1998

36. A study of the centrally produced $\phi \phi$ system in pp interactions at 450 GeV/c

Author

Barberis, D., Beusch, W., Binon, F G., Blick, A M., Close, F E., Danielsen, K M., Dolgopolov, A V., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Inyakin, A V., Ishida, T., Jacholkowski, A., Jacobsen, T., Jones, G T., Khaustov, G V., Kinashi, T., Kinson, J B., Kirk, A., Klempt, W., Kolosov, V., Kondashov, A A., Lednev, A A., Lenti, V., Maljukov, S., Martinengo, P., Minashvili, I., Nakagawa, T., Norman, K L., Peigneux, J P., Polovnikov, S A., Polyakov, V A., Romanovsky, V., Rotscheidt, H., Rumyantsev, V., Russakovich, N., Samoylenko, V D., Semenov, A., Sene, M., Sene, R., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Soloviev, A., Stassinaki, M., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tchlatchidze, G., Tsuru, T., Venables, M., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1998

37. A study of the centrally produced $\pi^{+}\pi^{-} \pi^{0}$ channel in pp interactions at $450 GeV/c$

Author

Barberis, D., Beusch, W., Binon, F G., Blick, A M., Close, F E., Danielsen, K M., Dolgopolov, A V., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Inyakin, A V., Ishida, T., Jacholkowski, A., Jacobsen, T., Jones, G T., Khaustov, G V., Kinashi, T., Kinson, J B., Kirk, A., Klempt, W., Kolosov, V., Kondashov, A A., Lednev, A A., Lenti, V., Maljukov, S., Martinengo, P., Minashvili, I., Nakagawa, T., Norman, K L., Peigneux, J P., Polovnikov, S A., Polyakov, V A., Romanovsky, V., Rotscheidt, H., Rumyantsev, V., Russakovich, N., Samoylenko, V D., Semenov, A., Sene, M., Sene, R., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Soloviev, A., Stassinaki, M., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tchlatchidze, G., Tsuru, T., Venables, M., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1998

38. A study of the centrally produced $K^{\star}(892)\overline{K}^{\star}(892)$ and $\phi\omega$ systems in pp interaction at 450 GeV/c

Author

Barberis, D., Beusch, W., Binon, F G., Blick, A M., Close, F E., Danielsen, K M., Dolgopolov, A V., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Inyakin, A V., Ishida, T., Jacholkowski, A., Jacobsen, T., Jones, G T., Khaustov, G V., Kinashi, T., Kinson, J B., Kirk, A., Klempt, W., Kolosov, V., Kondashov, A A., Lednev, A A., Lenti, V., Maljukov, S., Martinengo, P., Minashvili, I., Nakagawa, T., Norman, K L., Peigneux, J P., Polovnikov, S A., Polyakov, V A., Romanovsky, V., Rotscheidt, H., Rumyantsev, V., Russakovich, N., Samoylenko, V D., Semenov, A., Sene, M., Sene, R., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Soloviev, A., Stassinaki, M., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tchlatchidze, G., Tsuru, T., Venables, M., Villalobos Baillie, O., Votruba, M F., Yasu, Y., BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA102

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1998

39. A study of pseudoscalar states produced centrally in pp interactions at 450 GeV/c

Author

Barberis, D., Beusch, W., Binon, F G., Blick, A M., Close, F E., Danielsen, K M., Dolgopolov, A V., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Inyakin, A V., Ishida, T., Jacholkowski, A., Jacobsen, T., Jones, G T., Khaustov, G V., Kinashi, T., Kinson, J B., Kirk, A., Klempt, W., Kolosov, V., Kondashov, A A., Lednev, A A., Lenti, V., Maljukov, S., Martinengo, P., Minashvili, I., Nakagawa, T., Norman, K L., Peigneux, J P., Polovnikov, S A., Polyakov, V A., Romanovsky, V., Rotscheidt, H., Rumyantsev, V., Russakovich, N., Samoylenko, V D., Semenov, A., Sene, M., Sene, R., Shagin, P M., Shimizu, H., Singovsky, A V., Sobol, A., Soloviev, A., Stassinaki, M., Stroot, J P., Sugonyaev, V P., Takamatsu, K., Tchlatchidze, G., Tsuru, T., Venables, M., Villalobos Baillie, O., Votruba, M F., Yasu, Y., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1998

40. Observation of the X(1740) $\to K^0_s K^0_s$ decay

Author

Donskov, S V., Inyakin, A V., Kachanov, V A., Khaustov, G V., Kondashov, A A., Kulik, A V., Landsberg, G L., Lednev, A A., Lishin, V A., Polovnikov, S A., Polyakov, V A., Prokoshkin Yu, D., Sadovsky, S A., Samoylenko, V D., Shagin, P M., Shtannikov, A V., Singovsky, A V., Sugonyaev, V P., Bricman, C., Stroot, J P., Binon, F., Gouanere, M., Peigneux, J P., Poulet, M., Alde, D., Knapp, E., Boutemeur, M., BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and GAMS

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1994

41. Measurement of the $\omega$ -- $\eta\gamma$ decay rate

Author

Donskov, S V., Inyakin, A V., Kachanov, V A., Khaustov, G V., Kondashov, A A., Kulik, A V., Landsberg, G L., Lednev, A A., Lishin, V A., Polovnikov, S A., Polyakov, V A., Prokoshkin Yu, D., Sadovsky, S A., Samoylenko, V D., Shagin, P M., Shtannikov, A V., Singovsky, A V., Sugonyaev, V P., Bricman, C., Stroot, J P., Binon, F., Gouanere, M., Peigneux, J P., Poulet, M., Alde, D., Knapp, E., Boutemeur, M., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), GAMS, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1993

42. Study of the reaction $\pi^{-}p \to \eta'\pi^{0}$n at the momenta 38 and 100 GeV/c

Author

Alde, D., Binon, F., Bricman, C., Boutemeur, M., Gouanere, M., Donskov, S V., Inyakin, A V., Kachanov, V A., Kulik, A V., Landsberg, G L., Lednev, A A., Knapp, E A., Peigneux, J P., Polovnikov, S A., Prokoshkin Yu, D., Poulet, M., Sadovsky, S A., Samoylenko, V D., Singovsky, A V., Stroot, J P., Sugonyaev, V P., Khaustov, G V., Shagin, P M., Shtannikov, A V., BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and GAMS

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1992

43. Study of $\omega\pi^0}$ system at high masses

Author

Alde, D., Bellazzini, R., Benchouk, B., Binon, F. G., Brez, A., Bricman, C., Boutemeur, M., Gouanere, M., Donskov, S. V., Inaba, S., Inyakin, A. V., Kachanov, V. A., Kobayashi, M., Kulik, A. V., Greg Landsberg, Lednev, A. A., Massai, M. M., Nakamura, T., Knapp, E. A., Peigneux, J. P., Polovnikov, S. A., Prokoshkin, Yu D., Poulet, M., Sadovsky, S. A., Samoilenko, V. D., Singovsky, A. V., Stroot, J. P., Sugonyaev, V. P., Tabidze, M. D., Takamatsu, K., Torquati, M. R., Tsuru, T., Khaustov, G. V., Chikovani, E. G., Shagin, P. M., Shtannikov, A. V., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), GAMS, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1992

44. Study of $\omega\pi^0}$ systems

Author

Alde, D., Bencheikh, B., Binon, F., Boutemeur, M., Bricman, C., Chikovani, E G., Donskov, S V., Gouanere, M., Inaba, S., Inyakin, A V., Kachanov, V A., Khaustov, G V., Knapp, E A., Kobayashi, M., Kulik, A V., Landsberg, G L., Lednev, A A., Nakamura, T., Peigneux, J P., Polovnikov, S A., Poulet, M., Prokoshkin Yu, D., Sadovsky, S A., Samoylenko, V D., Shagin, P M., Shtannikov, A V., Singovsky, A V., Stroot, J P., Sugonyaev, V P., Tabidze, M D., Takamatsu, K., Tsuru, T., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), GAMS, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1992

45. Further study of mesons which decay into $\omega\omega$

Author

Alde, D., Binon, F., Boutemeur, M., Bricman, C., Donskov, S V., Gouanere, M., Inyakin, a V., Kachanov, V A., Khaustov, G V., Knapp, E A., Kulik, a V., Lednev, a A., Peigneux, J P., Poulet, M., Prokoshkin Yu, D., Rodnov Yu, V., Sadovsky, S A., Samoylenko, V D., Shagin, P M., Shtannikov, a V., Singovsky, a V., Stroot, J P., Sugonyaev, V P., Tabidze, M D., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), GAMS, and BOMBAR, Claudine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics - Experiment
Published
1990

47. Observation of the f 2(1525) resonance in the ηη system produced in K − p interactions at a momentum of 32.5 GeV/ c.

Author

Binon, F., Blick, A. M., Donskov, S. V., Inaba, S., Kolosov, V. N., Kut'in, V. M., Ladygin, M. E., Lednev, A. A., Lishin, V. A., Mikhailov, Yu. V., Peigneux, J. P., Polyakov, V. A., Samoylenko, V. D., Sobol, A. E., Stroot, J. P., Sugonyaev, V. P., Takamatsu, K., Tsuru, T., Fujii, Y., and Khaustov, G. V.

Subjects
PARTICLES (Nuclear physics), SPECTRUM analysis, RESONANCE, ACCELERATOR mass spectrometry, NUCLEAR reactions
Abstract

The reaction K − p → ηη(Λ/Σ0) at a momentum of 32.5 GeV/ c was studied for the first time. The experiment was performed by using the GAMS-4π spectrometer at the 70-GeV accelerator of the Institute for High Energy Physics (IHEP, Protvino). The f 2(1525) resonance was observed in the effective-mass spectrum of the ηη system at a low background level. The cross section for f 2(1525) production was measured. The branching ratio for f 2(1525)-meson decay to ηη and K $$\bar K$$ was found to be R = 0.119 ± 0.015(stat.) ± 0.036(syst.), which is in agreement with the world-average value. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
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48. Investigation of the ηη System in π–p Interactions at a Momentum of 32.5 GeV/c at the GAMS-4π Spectrometer.

Author

Binon, F., Blik, A. M., Donskov, S. V., Inaba, S., Kolosov, V. N., Lednev, A. A., Lishin, V. A., Mikhailov, Yu. V., Peigneux, J. P., Polyakov, V. A., Sadovsky, S. A., Samoilenko, V. D., Sobol, A. E., Stroot, J. P., Sugonyaev, V. P., Takamatsu, K., Tsuru, T., Fujii, I., Khaustov, G. V., and Shimizu, H.

Subjects
MOMENTUM (Mechanics), SPECTROMETERS, SPECTRUM analysis instruments, MESONS
Abstract

The ηη system produced in charge-exchange π–p interaction at a momentum of 32.5 GeV/c is studied in an experiment performed with the GAMS-4π spectrometer at the 70-GeV accelerator of the Institute for High-Energy Physics (IHEP, Protvino). A partial-wave analysis is performed in the mass range between 1.1 and 3.9 GeV for –t < 0.2 (GeV/c)2, S, D, G, and J waves being taken into account in this analysis. The S wave has a complicated structure, displaying peaks at about 1.5 and 1.7 GeV. These peaks are associated with the f0(1500) and f0(1710) mesons. One of the solutions (preferable one) involves the f0(2200) and f2(1950) resonances. The mass region above 2.4 GeV is dominated by the G wave. A broad state of mass about 3 GeV and width 0.7 GeV is found in the J wave. The parameters of the resonances in question and their production cross sections are measured.© 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]

Published
2005
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49. Pentafulvenkomplexe des Titans — Synthese, Struktur und Fluktuierendes Verhalten von Cp′Ti{η6‐C5H4=C(p‐Tol)2}Cl (Cp′ = Cp*, Cp)

Author

Stroot, J., Lützen, A., Friedemann, M., Saak, W., and Beckhaus, R.

Abstract

Die Umsetzung von Cp′TiCl3(Cp′ = Cp* bzw. Cp) mit Magnesium und 6, 6‐Di‐para‐tolylpentafulven liefert in guten Ausbeuten die Pentafulvenkomplexe Cp*Ti{η6‐C5H4=C(p‐Tol)2}Cl (4) bzw. CpTi{η6‐C5H4=C(p‐Tol)2}Cl (5). Die Kristallstruktur von 4konnte durch Röntgenstrukturanalyse geeigneter Einkristalle ermittelt werden und zeigt verglichen mit bereits bekannten η6‐Fulvenkomplexen einen ungewöhnlich großen Ti—C(p‐Tol)2(Fv)‐Abstand (2.535(5)Å), der durch die sterisch anspruchsvollen Substituenten am exocyclischen Kohlenstoffatom des Fulvenliganden hervorgerufen wird. Mit Hilfe dynamischer 1H‐NMR‐ und Sättigungstransfer‐Experimente läßt sich eine Rotation des Fulvenliganden um die Ti—Ct2‐Achse (Ct2 = Schwerpunkt der Fulvenring‐Kohlenstoffatome) mit einer Aktivierungsbarriere ΔG≠C= 60.6 ± 0.5 kJ mol−1(TC= 314 ± 2 K) nachweisen. Für 5liegt diese deutlich höher. Ein analoges dynamisches Verhalten ist bereits für Dienkomplexe bekannt und war Gegenstand zahlreicher Untersuchungen, wird aber unseres Wissens hier erstmalig für einen Pentafulvenkomplex beschrieben.

Published
2002
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50. Reaktionen von Pentafulven‐Komplexen des Titans mit Nitrilen und iso‐Nitrilen — Synthese und Isomerisierungen von σ, π‐Chelatkomplexen mit Cp∼N‐Liganden

Author

Stroot, J., Saak, W., Haase, D., and Beckhaus, R.

Abstract

Die Umsetzungen der Fulvenkomplexe Cp*Ti{η6—C5H4=C(R)(R')}Cl (R = H, R' = tBu (1); R = Me, R' = iPr (4)) mit Nitrilen und iso‐Nitrilen, die zu σ, π‐Chelatkomplexen mit Cp∼N‐Liganden führten, wurden untersucht und die entstehenden Produkte charakterisiert. Während bei der Umsetzung von 1bzw. 4mit Nitrilen eine 1, 2‐Monoinsertion der CN‐Einheit in die Ti—C(R)(R') (Fv)‐Bindung beobachtet wird, führt die Reaktion mit iso‐Nitrilen zur Insertion zweier Moleküle iso‐Nitril. Das Nitril‐Insertionsprodukt von 1zeichnet sich durch eine Imin‐Enamin‐Tautomerisierung aus. Während die primär gebildete metastabile Imin‐Form (3) lediglich durch NMR‐Messungen in Lösung charakterisiert werden konnte, kristallisiert die Enanim‐Form (2) aus n‐Hexan, so daß die Kristallstuktur ermittelt werden konnte. Der primär gebildete Iminoacylkomplex (7) lagert sich aufgrund der Elektrophilie des Titanatoms unter Bildung einer Ti—N Bindung mit signifikantem N(pπ) → Ti(dπ) Bindungscharakter um.

Published
2002
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