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101. Decay η' -> ωγ

Author

Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Subjects
Physique atomique et nucléaire
Abstract

info:eu-repo/semantics/published

Published
1987

102. Study of pi-p --> eta'$\eta$n in a search for glueballs

Author

Binon, Freddy G, Bricman, C, Donskov, S V, 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, Mouthuy, T, Peigneux, J P, Possoz, A, Prokoshkin, Yu D, Rodnov, Yu V, Sadovsky, S A, Shagin, P M, Sillou, D, Singovsky, A V, Stroot, Jean-Pierre, and Sugonyaev, V P

Subjects
Particle Physics - Experiment
Published
1984

103. Small

Author

Binon, Freddy, Davydov, Vasily V.A., Donskov, Sergey, Dufournaud, J., Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Khodirev, Yu. S., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Roosen, Robert, Sadovsky, Sergey S.A., Starzev, A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, and Yakutin, A.E.

Subjects
Physique, Astronomie
Abstract

π-p→π0n differential cross-sections have been measured in the region of small 4-momentum transfer at 40 GeV/c incident momentum. The experiment performed at the IHEP 70 GeV accelerator makes use of a hodoscope γ-spectrometer. The t- dependence of the cross-section points to a dominance of the spin-flip amplitude. © 1981 Springer-Verlag., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1981

104. Study of $\omega\omega$ systems produced in 38 GeV/c $\pi^{-}p$ collisions

Author

Alde, D G, Binon, Freddy G, Bricman, C, Donskov, S V, Gouanère, M, Inyakin, A V, Kachanov, V A, Khaustov, G V, Knapp, E A, Lednev, A A, 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, Jean-Pierre, Sugonyaev, V P, and Tabidze, M D

Subjects
Particle Physics - Experiment
Published
1988

105. eta puzzle: the decay eta --> pi$^{0}$gamma.gamma

Author

Davydov, 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, Singovsky, A V, Starzev, A V, Binon, Freddy G, Bricman, C, Lagnaux, J P, Stroot, Jean-Pierre, Dufournaud, J, Gouanère, M, Peigneux, J P, Sugonyaev, V P, and Duteil, P

Subjects
Particle Physics - Experiment
Published
1981

106. Observation of the decay $\eta \to \pi^0 \gamma \gamma$

Author

Binon, Freddy G, 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, Jean-Pierre, and Sugonyaev, V P

Subjects
Particle Physics - Experiment
Published
1982

108. Decay $\eta$' --> $\omega\gamma$

Author

Alde, D, Binon, Freddy G, Bricman, C, Donskov, S V, Duteil, P, Gouanère, 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, T, Peigneux, J P, Possoz, A, Prokoshkin, Yu D, Rodnov, Yu V, Sadovsky, S A, Samoylenko, V D, Shagin, P M, Shtannikov, A V, Sillou, D, Singovsky, A V, Stroot, Jean-Pierre, and Sugonyaev, V P

Subjects
Particle Physics - Experiment
Published
1986

110. New results from GAMS

Author

Binon, Freddy

Subjects
Physique atomique et nucléaire
Abstract

info:eu-repo/semantics/published

Published
1987

111. A combined photon-hadron hodoscope calorimeter

Author

Binon, Freddy, Bricman, Charles, Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Lagnaux, Jean-Pierre, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rykalin, Vladimir V.I., Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Subjects
Physique atomique et nucléaire
Abstract

info:eu-repo/semantics/published

Published
1988

112. Observation of the decay η → π0γγ

Author

Binon, Freddy, Bricman, Charles, Gouanère, M., Davydov, V.A., Donskov, Sergey, Duteil, P., Defournaud, J., Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu Y.K., Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovski, A., Sin'govskii, A.V., Startsev, A.V., Stroot, Jean-Pierre, Sugonyaev, A.P., and Khaustov, G.

Subjects
Physique atomique et nucléaire
Abstract

info:eu-repo/semantics/published

Published
1982

113. GAMS search for exotics

Author

Binon, Freddy and Binon, Freddy

Abstract

Two of the latest results of the GAMS Collaboration are discussed. The evidence for an exotic 1-+ meson M(1405) decaying into π0η, produced in π-p exclusive reactions at 100 GeV/c, is reviewed. New data are presented on the reaction π-p → ωωn at 38 GeV/c showing the existence of two tensor mesons: X(1640) and X(1960). © 1989., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1989

114. Structure of the η′η system with mass 2.22 GeV observed in π-p collisions at 38 and 100 GeV

Author

Alde, D., Binon, Freddy, Bricman, Charles, Gouanère, M., Donskov, Sergey, Dufournaud, J., Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu Y.K., Mouthuy, Th, Knapp, Edward E.A., Obraztsov, V., Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoilenko, V.D. V.D., Sin'govskii, A.V., Sillou, Daniel, Stroot, Jean-Pierre, Sugonyaev, Valentine, Khaustov, G., Shagin, Petr P.M., Shtannikov, A.V. A.V., Alde, D., Binon, Freddy, Bricman, Charles, Gouanère, M., Donskov, Sergey, Dufournaud, J., Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu Y.K., Mouthuy, Th, Knapp, Edward E.A., Obraztsov, V., Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoilenko, V.D. V.D., Sin'govskii, A.V., Sillou, Daniel, Stroot, Jean-Pierre, Sugonyaev, Valentine, Khaustov, G., Shagin, Petr P.M., and Shtannikov, A.V. A.V.

Abstract

info:eu-repo/semantics/published

Published
1987

115. Production of pseudoscalar mesons in 300 GeV central π+N collisions

Author

Alde, D., Bellazzini, Ronaldo, Binon, Freddy, Boutemeur, Madjid, Brez, Alessandro, Bricman, Charles, Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lednev, Andrey, Massai, Marco Maria, Massonnet, L., Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Torquati, M.R. M.R., Alde, D., Bellazzini, Ronaldo, Binon, Freddy, Boutemeur, Madjid, Brez, Alessandro, Bricman, Charles, Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lednev, Andrey, Massai, Marco Maria, Massonnet, L., Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, and Torquati, M.R. M.R.

Abstract

The exculsive production of π0, η, and η′ mesons in π+N central collisions has been studied with 300 GeV incident pions. The experiment has been performed at the CERN SPS. The gammas from decaying mesons were detected in the hodoscope multiphoton spectrometer GAMS-4000. The measured differential cross sections show a plateau in the longitudinal momentum interval 0.1

Published
1989

116. Hodoscope multiphoton spectrometer GAMS-2000

Author

Binon, Freddy, Buyanov, V.M., Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Khaustov, G., Lagnaux, Jean-Pierre, Lednev, Andrey, Michotte de Welle, Jacques, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Potapov, V.V., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Binon, Freddy, Buyanov, V.M., Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Khaustov, G., Lagnaux, Jean-Pierre, Lednev, Andrey, Michotte de Welle, Jacques, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Potapov, V.V., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

A hodoscope γ spectrometer comprising 1536 lead-glass cells is described. This detector allows the coordinates and the energies of a large number of gammas (up to ≈ 10) to be measured simultaneously and the masses (with an accuracy of 1%) and the momenta of particles decaying into photons to be determined. The use of fast processors allows selection of events by mass, energy and momentum transfer. The procedure for a fully automatic calibration of the spectrometer in an electron beam (with ∼ 1% accuracy) and for its control during long-term physical experiments is described. © 1986., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1986

117. χ particle production in π-p collisions at 38 GeV/c

Author

Binon, Freddy, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Binon, Freddy, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

The production of χ particles in the reaction π-p → χ + .has been studied near threshold. The measurements have been performed at the 70 GeV IHEP proton synchrotron using the hodoscope spectrometer GAMS-2000. The χ particles have been identified through their decay χ → J/ψ + γ, J/ψ → e+e-. In the region XF ≳0.4 the fraction of obsered J/ψ particles which is obtained via the decay of χ states is 0.44 ± 0.16. The χ longitudinal and transverse momentum distributions are similar to those obtained for J/ψ. The inclusive production cross section of χ particles (3P1 and 3P2 states) at 38 GeV/c is σXF>0 (π-p → χ + .) = (28±11) nb. © 1984., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1984

118. Observation of a spin-6 neutral meson r(2510)

Author

Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Singovsky, Alexandre A.V., Mikhailov, Yu, Sugonyaev, Valentine, Binon, Freddy, Lagnaux, Jean-Pierre, Stroot, Jean-Pierre, Gouanère, M., Peigneux, Jean Pierre, Duteil, P., Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Singovsky, Alexandre A.V., Mikhailov, Yu, Sugonyaev, Valentine, Binon, Freddy, Lagnaux, Jean-Pierre, Stroot, Jean-Pierre, Gouanère, M., Peigneux, Jean Pierre, and Duteil, P.

Abstract

In a high-statistics experiment (200 events/nanobarn) performed at the 70 GeV IHEP accelerator, a new dipion resonance has been observed in π-p collisions at 38 GeV/c momentum. The gamma-rays in reaction π-p → M0n, M0 → π0π0 → 4γ have been detected in the hodoscope spectrometer GAMS-2000. The new meson, r(2510), has a mass (2510±30) MeV/c2, a width (240±60) MeV/c2 and spin-parity J PC=6++. The production cross-section of the f, h and r mesons decreases exponentially with spin like exp [-0.9 J]. © 1984 Società Italiana di Fisica., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1984

119. Coordinate measurements with a hodoscope hadron calorimeter at energies up to 300 GeV

Author

Binon, Freddy, Davydov, Vasily V.A., Donskov, Sergey, Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Stroot, Jean-Pierre, Binon, Freddy, Davydov, Vasily V.A., Donskov, Sergey, Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., and Stroot, Jean-Pierre

Abstract

The possibilities offered by a novel experimental technique - the hodoscope hadron calorimeter - to determine coordinates of high-energy hadrons accurately by measuring the transverse spread of their associated showers have been studied. This accuracy is shown to improve with energy as (ln4E + q1E) 1 2/E and at E = 300 GeV it reaches σy = 3 mm. The shrinkage of the hadron shower and the growth of its central component with increasing energy have been measured. As for energy resolution, the hodoscope calorimeter does not yield to conventional calorimeters. © 1983., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1983

120. Neutral decays of the η meson

Author

Alde, D., Binon, Freddy, Bricman, Charles, Gouanère, M., Donskov, Sergey, Duteil, P., Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Maishev, V.A., Mel'nik, Yu.M., Mikailov, Yu.V., Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovski, A., Sin'govskii, A.V., Sillou, Daniel, Stroot, Jean-Pierre, Sugonyaev, A.P., Khaustov, G., Shagin, Petr P.M., Alde, D., Binon, Freddy, Bricman, Charles, Gouanère, M., Donskov, Sergey, Duteil, P., Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Maishev, V.A., Mel'nik, Yu.M., Mikailov, Yu.V., Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovski, A., Sin'govskii, A.V., Sillou, Daniel, Stroot, Jean-Pierre, Sugonyaev, A.P., Khaustov, G., and Shagin, Petr P.M.

Abstract

info:eu-repo/semantics/published

Published
1984

121. Production of G(1590) and other mesons decaying into η pairs by 100 GeV/c π- on protons

Author

Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Dufournaud, J., Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lac, C.D., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Obraztsov, V., Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Dufournaud, J., Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lac, C.D., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Obraztsov, V., Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

New data on the scalar G(1590) meson which decays into ηη have been obtained in an experiment at the CERN SPS. η pairs are detected with the electromagnetic calorimeter GAMS both through their decay into 4γ and into 8γ. ε{lunate}(1300), f(1270), f′(1525) as well as the spin-4 h(2030) mesons have also been observed to decay in the same mode. Their branching ratios have been evaluated. The presence of high-mass spin-0 and spin-2 structures is discussed. © 1986., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1986

122. 2.22 GeV ηη′ structure observed in 38 GeV / c and 100 GeV / c π-p collisions

Author

Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Dufournaud, J., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Obraztsov, V., Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Dufournaud, J., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Obraztsov, V., Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

A structure has been observed at 2220 MeV in the mass spectrum of ηη′ systems produced by 38GeV/c and 100 GeV/c′ negative pions on protons. The angular distribution of the decay products shows that this structure is presumably a spin J ≥ 2 meson. © 1986., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1986

123. Hodoscope gamma spectrometer gams-200

Author

Binon, Freddy, Bricman, Charles, Davydov, Vasily V.A., Donskov, Sergey, Dufournaud, J., Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Roosen, Robert, Sadovsky, Sergey S.A., Sillou, Daniel, Starzev, A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Binon, Freddy, Bricman, Charles, Davydov, Vasily V.A., Donskov, Sergey, Dufournaud, J., Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Roosen, Robert, Sadovsky, Sergey S.A., Sillou, Daniel, Starzev, A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

A 208 channel hodoscope γ spectrometer, the cells of which are made of lead-glass, is described. This detector makes it possible to measure simultaneously the coordinates (with an accuracy of 1.5 mm), and energy (to a few percent) of a large number of gammas and to reconstruct the mass and momentum of the particles decaying into gammas. The characteristics of the spectrometer have been studied in an electron beam and also under the conditions of real experiments (π0 → 2γ). © 1981., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1981

124. Observation of a 1750 MeV narrow meson decaying into ηη

Author

Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoilenko, V.D. V.D., Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoilenko, V.D. V.D., Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

A narrow meson which decays into ηη is observed in 38 GeV/c π-p collisions at large momentum transfer. The experiment has been performed at the Serpukhov accelerator with the GAMS-2000 spectrometer. The mass of this new meson is (1755 ± 8) MeV, its width is less than 50 MeV. Its spin-parity is JPC=0++ or less probably 2++. © 1986., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1986

125. Matrix element of the η′(958) → ηπ0π0 decay

Author

Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

The decay η′ → ηπ0π0 → 6γ has been measured accurately with the GAMS-2000 spectrometer in a high statistics experiment performed at the 70 GeV IHEP accelerator. The parameters of a linear matrix element have been obtained which show that it is practically constant, with a slight dependence on only one of the Dalitz variables. © 1986., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1986

126. η puzzle: the decay η →π°γγ

Author

Davtdov, V.A., Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Mikhailov, Yu, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Singovskt, A.V., Starzev, A.V., Binon, Freddy, Bricman, Charles, Lagnaux, Jean-Pierre, Stroot, Jean-Pierre, Dufournaud, J., Gouanère, M., Peigneux, Jean Pierre, Sugonyaev, Valentine, Duteil, P., Davtdov, V.A., Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Mikhailov, Yu, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Singovskt, A.V., Starzev, A.V., Binon, Freddy, Bricman, Charles, Lagnaux, Jean-Pierre, Stroot, Jean-Pierre, Dufournaud, J., Gouanère, M., Peigneux, Jean Pierre, Sugonyaev, Valentine, and Duteil, P.

Abstract

SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1981

127. The isospin-violating decay η' → 3π0

Author

Binon, Freddy, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Binon, Freddy, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

In an experiment performed at the 70 GeV IHEP accelerator the rate decay η'(958) → 3π0, which violates isosoin conservation, has been observed. The six final decay gamma rays are detected in the hodoscope spectrometer GAMS-2000. The branching ratio of this decay is BR (η' → 3π0) = (1.6 ± 0.4) × 10-3. An estimate of the ratio of the masses of u and d quarks is given. © 1984., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1984

128. Study of π-p→η′ηn in a search for glueballs

Author

Binon, Freddy, Bricman, Charles, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Khaustov, G., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Binon, Freddy, Bricman, Charles, Donskov, Sergey, Duteil, P., Gouanère, M., Inyakin, Alexandre A.V., Khaustov, G., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Shagin, Petr P.M., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

η′η pair production in the charge exchange reaction π-p→η′ηn has been observed and studied in a search for glueballs with the 38 GeV/c pion beam of the 70 GeV IHEP accelerator. The γ-rays from the decay η′η→4γ were detected with the hodoscope spectrometer GAMS-2000. The η′η events in the mass range from threshold up to 1.8 GeV are decays of the scalar G(1590)-meson which has been already observed in its ηη decay mode. The measured ratio of the partial widths of the G→η′η and the G → ηη decay channels is 2.7±0.8 in agreement with the value expected for glueballs. © 1984 Società Italiana di Fisica., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1984

129. Neutral decays of η′(958)

Author

Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

The partial widths of the η′(958) decays into 2γ, ωγ, 3π0 and ηπ0π0 have been measured with the GAMS-2000 spectrometer at the 70 GeV IHEP accelerator. Upper limits for the η′ decays into 3γ, π0γγ, 2π0 and 4π0 have also been obtained. The slope of a linear matrix element for the G-parity violating decay η′→3π0 has been determined. © 1987 Springer-Verlag., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1987

130. J/ψ production by 24 GeV/c protons

Author

Bamberger, Andreas, Binon, Freddy, Bricman, Charles, Brüning, H., Duteil, P., Gouanère, M., Hartung, R., Jansen, J., Lagnaux, Jean-Pierre, Massas, G., Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., Stroot, Jean-Pierre, Vilain, Pierre, Bamberger, Andreas, Binon, Freddy, Bricman, Charles, Brüning, H., Duteil, P., Gouanère, M., Hartung, R., Jansen, J., Lagnaux, Jean-Pierre, Massas, G., Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., Stroot, Jean-Pierre, and Vilain, Pierre

Abstract

We report measurements at the CERN PS of the production cross section of J/ψ(3.1) by 24 GeV protons on hydrogen, carbon, and tungsten. © 1978., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1978

131. Neutral mesons which decay into 4π0

Author

Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Obraztsov, V., Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Bricman, Charles, Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lednev, Andrey, Mikhailov, Yu, Mouthuy, Th, Obraztsov, V., Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

Data on the 4π0 decay mode of mesons have been obtained in a search for glueballs performed at the CERN SPS with the GAMS-4000 multiphoton spectrometer. A new tensor glueball candidate X(1810) appears as a clear peak in the 4π0 mass spectrum. The 4π0 decay of G(1590) is also observed. The measured value of BR(G→4π0)/BR(G→ηη)=0.8±0.3 further supports the glueball assignment of this scalar particle. The rate decay of f(1270) into 4π0 has been measured: BR(f→4π0) = (3±1)×10-3. © 1987., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1987

132. Evidence for a 1.9 GeV meson decaying into ηη′

Author

Alde, D., Knapp, Edward E.A., Binon, Freddy, Bricman, Charles, Stroot, Jean-Pierre, Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Sugonyaev, Valentine, Gouanère, M., Peigneux, Jean Pierre, Alde, D., Knapp, Edward E.A., Binon, Freddy, Bricman, Charles, Stroot, Jean-Pierre, Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Sugonyaev, Valentine, Gouanère, M., and Peigneux, Jean Pierre

Abstract

Evidence for a new meson decaying into ηη′ has been found in 38 GeV π-p charge-exchange interactions. The mass and the width of this meson are (1917 ± 15) MeV and (90-50+35) MeV, respectively. Possible spin and parity assignments are JPC = 0++, 1-+ or 2++, isospin and G-parity are IG = 0+. The t-dependence of the differential cross section follows an exponential behaviour exp(bt with a small slope: b = (2±1) (GeV/c)-2.Upper limits on its decay into ππ, ηη and KK exotic interpretation of this meson. © 1989., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1989

133. Evidence for a 1-+ exotic meson

Author

Alde, D., Knapp, Edward E.A., Binon, Freddy, Bricman, Charles, Lagnaux, Jean-Pierre, Stroot, Jean-Pierre, Boutemeur, Madjid, Gouanère, M., Massonnet, L., Peigneux, Jean Pierre, Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Lednev, Andrey, Obraztsov, V., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Sugonyaev, Valentine, Alde, D., Knapp, Edward E.A., Binon, Freddy, Bricman, Charles, Lagnaux, Jean-Pierre, Stroot, Jean-Pierre, Boutemeur, Madjid, Gouanère, M., Massonnet, L., Peigneux, Jean Pierre, Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Lednev, Andrey, Obraztsov, V., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., and Sugonyaev, Valentine

Abstract

A non qq,JPC = 1-+, IG=1- meson has been observed in the study of the exclusive reaction π-p→π0ηn at 100 GeV. Its mass is (1406±20) MeV. Its width is (180±30) MeV. © 1988., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1988

134. Study of ωω systems produced in 38 GeV/c π- p collisions

Author

Alde, D., Knapp, Edward E.A., Binon, Freddy, Bricman, Charles, Stroot, Jean-Pierre, Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Sugonyaev, Valentine, Tabidze, M.D. M.D., Gouanère, M., Peigneux, Jean Pierre, Alde, D., Knapp, Edward E.A., Binon, Freddy, Bricman, Charles, Stroot, Jean-Pierre, Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Sugonyaev, Valentine, Tabidze, M.D. M.D., Gouanère, M., and Peigneux, Jean Pierre

Abstract

The π- p→ωωn reaction has studied for the first time at the 70 GeV IHEP accelerator. The six photons from the decay of the two ω mesons were detected in GAMS-2000, a hodoscope multi-photon spectometer. Two resonances decaying into ωω,X (1640) and X(1960), have been observed. Their quantum numbers are JPC=2++, IG=0+. The reaction is dominated by the one-pion exchange mechanism. The production cross sections σ. BR(X→ωω) are 0.65±0.15 μb and 1.0±0.2 μb, respectively. © 1989., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1989

135. High-pT two-body correlations and single-particle inclusive hadron spectra in 24 GeV proton-nucleus collisions

Author

Jansen, J., Vilain, Pierre, Yaouanc, A., Bamberger, Andreas, Binon, Freddy, Bricman, Charles, Brüning, H., Ditteil, P., Gouanère, M., Hartung, E., Lagnaux, Jean-Pierre, Massas, G., Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., Stroot, Jean-Pierre, Jansen, J., Vilain, Pierre, Yaouanc, A., Bamberger, Andreas, Binon, Freddy, Bricman, Charles, Brüning, H., Ditteil, P., Gouanère, M., Hartung, E., Lagnaux, Jean-Pierre, Massas, G., Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., and Stroot, Jean-Pierre

Abstract

Results are presented on inclusive spectra of π±, K+- and p+- produced in 24 GeV p12C collisions near θc.m. = 90° in the transverse-momentum range 0.49

Published
1981

136. Production of G(1590) in 300 GeV central π-N collisions

Author

Alde, D., Knapp, Edward E.A., Bellazzini, Ronaldo, Brez, Alessandro, Massai, Marco Maria, Torquati, M.R. M.R., Binon, Freddy, Bricman, Charles, Lagnaux, Jean-Pierre, Stroot, Jean-Pierre, Boutemeur, Madjid, Gouanère, M., Massonnet, L., Peigneux, Jean Pierre, Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Obraztsov, V., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Sugonyaev, Valentine, Alde, D., Knapp, Edward E.A., Bellazzini, Ronaldo, Brez, Alessandro, Massai, Marco Maria, Torquati, M.R. M.R., Binon, Freddy, Bricman, Charles, Lagnaux, Jean-Pierre, Stroot, Jean-Pierre, Boutemeur, Madjid, Gouanère, M., Massonnet, L., Peigneux, Jean Pierre, Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Obraztsov, V., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., and Sugonyaev, Valentine

Abstract

Significant production of G(1590), a scalar glueball candidate, is observed in a study of η pairs produced in π-N central collisions at 300 GeV/c. © 1988., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1988

137. A high resolution liquid radiator differential Čerenkov counter

Author

Binon, Freddy, Bricman, Charles, Duteil, P., Gouanère, M., Jansen, J., Lagnaux, Jean-Pierre, Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., Stroot, Jean-Pierre, Binon, Freddy, Bricman, Charles, Duteil, P., Gouanère, M., Jansen, J., Lagnaux, Jean-Pierre, Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., and Stroot, Jean-Pierre

Abstract

A liquid-differential Cerenkov counter built to separate protons from kaons between 2 GeV/c and 9.5 GeV/c or kaons from pions up to 5 GeV/c is described. This counter has a 20 cm diameter useful cross-area. It can accept a ±7% momentum bite around its nominal setting. A resolution Δβ β better than 3% is achieved in the vicinity of β = 1. © 1978., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1978

139. Preliminary results on the 3.1 GeV/c² resonance production in hydrogen by 24 GeV/c protons

Author

the 18 th conference on High-Energy Physics (1976-07: Tbilissi), Bamberger, Andreas, Binon, Freddy, Bricman, Charles, Bruening, H., Duteil, P., Gouanère, M., Hartung, R., Jansen, J., Lagnaux, Jean-Pierre, Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., Stroot, Jean-Pierre, the 18 th conference on High-Energy Physics (1976-07: Tbilissi), Bamberger, Andreas, Binon, Freddy, Bricman, Charles, Bruening, H., Duteil, P., Gouanère, M., Hartung, R., Jansen, J., Lagnaux, Jean-Pierre, Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., and Stroot, Jean-Pierre

Abstract

info:eu-repo/semantics/nonPublished

Published
1976

140. Particle identification with a combined hodoscope calorimeter

Author

Alde, D., Binon, Freddy, Bricman, Charles, Datsko, V.C., Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lednev, Andrey, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Rykalin, Vladimir V.I., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Bricman, Charles, Datsko, V.C., Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lednev, Andrey, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Rykalin, Vladimir V.I., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

The differences in width and in deposited energy between electromagnetic and hadron showers developed by 18.5 and 38 GeV/c pions and electrons in a combined hodoscope detector composed of a GAMS-type electromagnetic calorimeter and a modular hadron calorimeter allow to reject pions or electrons to a level ≪ 0.1% keeping a detection efficiency larger than 90% when the other particle is selected. The hadron calorimeter helps to efficiently reject background in studies of multiphoton decays of neutral mesons with GAMS. © 1989., SCOPUS: le.j, info:eu-repo/semantics/published

Published
1989

141. Measurement of the resolution of a combined hodoscope calorimeter at 18 GeV and 38 GeV

Author

Alde, D., Binon, Freddy, Bricman, Charles, Datsko, V.S., Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lapshin, V.G., Lednev, Andrey, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Rykalin, Vladimir V.I., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Bricman, Charles, Datsko, V.S., Donskov, Sergey, Gouanère, M., Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Kulik, Alexei A.V., Lagnaux, Jean-Pierre, Lapshin, V.G., Lednev, Andrey, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Rykalin, Vladimir V.I., Sadovsky, Sergey S.A., Samoylenko, Vladimir, Shagin, Petr P.M., Shtannikov, A.V. A.V., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

The energy and spatial resolution of a combined detector consisting of the Cherenkov photon calorimeter GAMS-2000 and the modular hadron calorimeter MHC-100 has been studied at 18.5 and 38 GeV incident pion energies at the IHEP accelerator. The energy resolution of the combined setup is substantially improved by applying a correction based on the analysis of the lateral development of hadron showers in GAMS and MHC. It is shown that the parameters of the correction depend only weakly on the hadron energy. The influence of the gap between both photon and hadron calorimeters on the combined detector characteristics is of less importance with increasing energy. © 1988., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1988

142. Acquisition system for the hodoscope spectrometer GAMS-4000

Author

Alde, D., Binon, Freddy, Boget, D., Bricman, Charles, Donskov, Sergey, Dromby, G., Dufournaud, J., Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Lac, C.D., Lagnaux, Jean-Pierre, Lednev, Andrey, Michotte de Welle, Jacques, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Potter, James, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sillou, Daniel, Stroot, Jean-Pierre, Sugonyaev, Valentine, Alde, D., Binon, Freddy, Boget, D., Bricman, Charles, Donskov, Sergey, Dromby, G., Dufournaud, J., Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Knapp, Edward E.A., Lac, C.D., Lagnaux, Jean-Pierre, Lednev, Andrey, Michotte de Welle, Jacques, Mikhailov, Yu, Mouthuy, Th, Peigneux, Jean Pierre, Potter, James, Possoz, A., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sillou, Daniel, Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

A data acquisition system with high amplitude resolution (12 bits), high speed conversion (clock frequency 50 MHz), used in an experiment with a large number of counters (∼ 4200) is described. Physical quantities (masses and momentum transfer) are computed during data transmission itself, allowing improved trigger selectivity. © 1985., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1985

143. Modular hadron calorimeter

Author

Binon, Freddy, Bricman, Charles, Buyanov, V.M., Datsko, V.S., Dufournaud, J., Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Lagnaux, Jean-Pierre, Lapshin, V.G., Lednev, Andrey, Michotte de Welle, Jacques, Mikhailov, Yu, Mouthuy, Th, Obraztsov, V., Peigneux, Jean Pierre, Possoz, A., Potapov, V.V., Prokoshkin, Yu Y.D., Rykalin, Vladimir V.I., Shagin, Petr P.M., Shtannikov, A.V. A.V., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Sugonyaev, Valentine, Binon, Freddy, Bricman, Charles, Buyanov, V.M., Datsko, V.S., Dufournaud, J., Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Lagnaux, Jean-Pierre, Lapshin, V.G., Lednev, Andrey, Michotte de Welle, Jacques, Mikhailov, Yu, Mouthuy, Th, Obraztsov, V., Peigneux, Jean Pierre, Possoz, A., Potapov, V.V., Prokoshkin, Yu Y.D., Rykalin, Vladimir V.I., Shagin, Petr P.M., Shtannikov, A.V. A.V., Sillou, Daniel, Singovsky, Alexandre A.V., Stroot, Jean-Pierre, and Sugonyaev, Valentine

Abstract

A large cellular hadron calorimeter consisting of independent modular total aborption counters (iron-scintillator sandwiches) is described. Scintillation light is collected using light guides with a wavelength shifter. The characteristics of the detector have been studied in a 200 GeV hadron beam. The detector makes it possible to measure simultaneously the energy and coordinates of several particles. © 1987., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1987

144. Photomultiplier gain tuning system

Author

Binon, Freddy, Donskov, Sergey, Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kulik, Alexei A.V., Michotte de Welle, Jacques, Mikhailov, Yu, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Singovsky, Alexandre A.V., Stroot, Jean-Pierre, Binon, Freddy, Donskov, Sergey, Duteil, P., Gouanère, M., Kachanov, Vasilij V.A., Kulik, Alexei A.V., Michotte de Welle, Jacques, Mikhailov, Yu, Peigneux, Jean Pierre, Prokoshkin, Yu Y.D., Singovsky, Alexandre A.V., and Stroot, Jean-Pierre

Abstract

SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1983

145. Small-momentum-transfer K-p charge exchange scattering at 30 GeV/c

Author

Binon, Freddy, Lagnaux, Jean-Pierre, Roosen, Robert, Stroot, Jean-Pierre, Davydov, Vasily V.A., Donskov, Sergey, Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Khaustov, G., Kuljk, A.V., Lednev, Andrey, Maisheev, Vladimir V.A., Melnikov, Yu, Mikhailov, Yu, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Starzev, A.V., Dufournaud, J., Gouanère, M., Peigneux, Jean Pierre, Duteil, P., Binon, Freddy, Lagnaux, Jean-Pierre, Roosen, Robert, Stroot, Jean-Pierre, Davydov, Vasily V.A., Donskov, Sergey, Inyakin, Alexandre A.V., Kakauridze, D.B. D.B., Kachanov, Vasilij V.A., Khaustov, G., Kuljk, A.V., Lednev, Andrey, Maisheev, Vladimir V.A., Melnikov, Yu, Mikhailov, Yu, Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Starzev, A.V., Dufournaud, J., Gouanère, M., Peigneux, Jean Pierre, and Duteil, P.

Abstract

The {Mathematical expression} charge exchange differential cross-section has been measured at 30 GeV/c with high statistical accuracy and high angular resolution. The experiment was made at the IHEP 70 GeV accelerator, by using a hodoscope hadron calorimeter to detect K L 0 .The cross-section shows a dip at small, SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1981

146. Pion Induced Reactions on Light Nuclei

Author

Binon, Freddy and Binon, Freddy

Abstract

info:eu-repo/semantics/published, Meson-Nuclear Physics, editors P.D. Barnes, R.A. Eisenstein, L.S. Kisslinger, American Institute of Physics

Published
1976

147. Scattering of negative pions on helium

Author

Binon, Freddy, Duteil, P., Gouanère, M., Hugon, L., Jansen, J., Lagnaux, Jean-Pierre, Palevsky, Harry, Peigneux, Jean Pierre, Spighel, M., Stroot, Jean-Pierre, Binon, Freddy, Duteil, P., Gouanère, M., Hugon, L., Jansen, J., Lagnaux, Jean-Pierre, Palevsky, Harry, Peigneux, Jean Pierre, Spighel, M., and Stroot, Jean-Pierre

Abstract

Differential cross sections for negative pion scattering on 4He have been measured at five pion kinetic energies between 110 and 260 MeV in the angular range from 5° to 180°. Total cross sections have also been measured at eleven energies between 67 and 285 MeV. The differential cross sections have been fitted with a phenomenological expression for the nuclear scattering amplitude. Conventional phase shifts have been reconstructed starting from the parameters of the fits. © 1978., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1978

148. Accurate time measurements with plastic scintillation counters

Author

Binon, Freddy, Bricman, Charles, Duteil, P., Gouanère, M., Jansen, J., Lagnaux, Jean-Pierre, Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., Stroot, Jean-Pierre, Vilain, Pierre, Binon, Freddy, Bricman, Charles, Duteil, P., Gouanère, M., Jansen, J., Lagnaux, Jean-Pierre, Peigneux, Jean Pierre, Sillou, Daniel, Spighel, M., Stroot, Jean-Pierre, and Vilain, Pierre

Abstract

A plastic scintillation counter, with a useful areaof 24×25 cm2 and a resolution of 290 ps (fwhm) for determining the time of impact of a minimum ionizing particle, is described. The resolution may be brought down to 100 ps with smaller counters. Lower time spreads are obtained with more ionizing particles. © 1978., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
1978

149. A hodoscope calorimeter for high enegy hadrons: ihep-iisn-lapp collaboration.

Author

Davidov, V.A., Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Mikhailov, Yu Y.K., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Starzev, A.V., Lagnaux, Jean-Pierre, Binon, Freddy, Davidov, V.A., Donskov, Sergey, Inyakin, Alexandre A.V., Kachanov, Vasilij V.A., Kakauridze, D.B. D.B., Khaustov, G., Kulik, Alexei A.V., Lednev, Andrey, Mikhailov, Yu Y.K., Prokoshkin, Yu Y.D., Rodnov, Yu Y.V., Sadovsky, Sergey S.A., Starzev, A.V., Lagnaux, Jean-Pierre, and Binon, Freddy

Abstract

A total absorption hodoscope calorimeter is described. It allows the simultaneous measurement of the energy of the incident hadrons as well as their coordinates with a precision of 1 cm for hadron energies of tens of GeV and higher. The behavior of the calorimeter is studied with incident pions, kaons, antiprotons and electrons., SCOPUS: NotDefined.j, info:eu-repo/semantics/published

Published
1980

150. High-energy particle spectra from proton interactions at 19.2 GeV/c

Author

Allaby, Jim J.V., Binon, Freddy, Diddens, A.N., Duteil, P., Klovning, Atle, Meunier, Robert, Peigneux, Jean Pierre, Sacharidis, E.J., Schlupmann, K., Spighel, M., Stroot, Jean-Pierre, Thorndike, Alan A.M., and Wetherell, A.M.

Subjects
Physics::Instrumentation and Detectors, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, Physique atomique et nucléaire
Abstract

CERN 70/12, info:eu-repo/semantics/published

Published
1970

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