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Autor:
V.D. Samoylenko, V. A. Lishin, V.A. Polyakov, G.V. Khaustov, A.A. Lednev, V.N. Kolosov, A. E. Sobol, A. M. Blik, V.P. Sugonyaev, Sergey Donskov, Yu.V. Mikhailov, A. M. Gorin
Publikováno v:
Physics of Atomic Nuclei. 72:231-236
The parameters of the Dalitz diagram for the decay η′ → ηπ0π0 in a generalized and a linear representation were determined by using a statistical sample of 15 × 103 events. A charge-exchange reaction at a momentum of 32 GeV/c was a source of
Autor:
V.D. Samoylenko, A. M. Gorin, A. M. Blik, V.P. Sugonyaev, V.A. Polyakov, G.V. Khaustov, A. E. Sobol, V. A. Lishin, Yu.V. Mikhailov, Sergey Donskov, A.A. Lednev, V.N. Kolosov
Publikováno v:
Physics of Atomic Nuclei. 71:2124-2128
An experiment performed with the GAMS-4π spectrometer resulted in observing 235 ± 45 events of the decay η′ → 3π 0. The respective charge-exchange reaction at a momentum of 32.5 GeV/c was used as a source of η′ mesons. The decay branching
Autor:
P. Abbon, E. Albrecht, V.Yu. Alexakhin, Yu. Alexandrov, G.D. Alexeev, M.G. Alekseev, A. Amoroso, H. Angerer, V.A. Anosov, B. Badełek, F. Balestra, J. Ball, J. Barth, G. Baum, M. Becker, Y. Bedfer, P. Berglund, C. Bernet, R. Bertini, M. Bettinelli, R. Birsa, J. Bisplinghoff, P. Bordalo, M. Bosteels, F. Bradamante, A. Braem, A. Bravar, A. Bressan, G. Brona, E. Burtin, M.P. Bussa, V.N. Bytchkov, M. Chalifour, A. Chapiro, M. Chiosso, P. Ciliberti, A. Cicuttin, M. Colantoni, A.A. Colavita, S. Costa, M.L. Crespo, P. Cristaudo, T. Dafni, N. d’Hose, S. Dalla Torre, C. d’Ambrosio, S. Das, S.S. Dasgupta, E. Delagnes, R. De Masi, P. Deck, N. Dedek, D. Demchenko, O.Yu. Denisov, L. Dhara, V. Diaz, N. Dibiase, A.M. Dinkelbach, A.V. Dolgopolov, A. Donati, S.V. Donskov, V.A. Dorofeev, N. Doshita, D. Durand, V. Duic, W. Dünnweber, A. Efremov, P.D. Eversheim, W. Eyrich, M. Faessler, V. Falaleev, P. Fauland, A. Ferrero, L. Ferrero, M. Finger, H. Fischer, C. Franco, J. Franz, F. Fratnik, J.M. Friedrich, V. Frolov, U. Fuchs, R. Garfagnini, L. Gatignon, F. Gautheron, O.P. Gavrichtchouk, S. Gerassimov, R. Geyer, J.M. Gheller, A. Giganon, M. Giorgi, B. Gobbo, S. Goertz, A.M. Gorin, F. Gougnaud, S. Grabmüller, O.A. Grajek, A. Grasso, B. Grube, A. Grünemaier, A. Guskov, F. Haas, R. Hagemann, J. Hannappel, D. von Harrach, T. Hasegawa, J. Heckmann, S. Hedicke, F.H. Heinsius, R. Hermann, C. Heß, F. Hinterberger, M. von Hodenberg, N. Horikawa, S. Horikawa, I. Horn, C. Ilgner, A.I. Ioukaev, S. Ishimoto, I. Ivanchin, O. Ivanov, T. Iwata, R. Jahn, A. Janata, R. Joosten, N.I. Jouravlev, E. Kabuß, V. Kalinnikov, D. Kang, F. Karstens, W. Kastaun, B. Ketzer, G.V. Khaustov, Yu.A. Khokhlov, J. Kiefer, Yu. Kisselev, F. Klein, K. Klimaszewski, S. Koblitz, J.H. Koivuniemi, V.N. Kolosov, E.V. Komissarov, K. Kondo, K. Königsmann, A.K. Konoplyannikov, I. Konorov, V.F. Konstantinov, A.S. Korentchenko, A. Korzenev, A.M. Kotzinian, N.A. Koutchinski, O. Kouznetsov, K. Kowalik, D. Kramer, N.P. Kravchuk, G.V. Krivokhizhin, Z.V. Kroumchtein, J. Kubart, R. Kuhn, V. Kukhtin, F. Kunne, K. Kurek, N.A. Kuzmin, M. Lamanna, J.M. Le Goff, M. Leberig, A.A. Lednev, A. Lehmann, V. Levinski, S. Levorato, V. I Lyashenko, J. Lichtenstadt, T. Liska, I. Ludwig, A. Maggiora, M. Maggiora, A. Magnon, G.K. Mallot, A. Mann, I.V. Manuilov, C. Marchand, J. Marroncle, A. Martin, J. Marzec, L. Masek, F. Massmann, T. Matsuda, D. Matthiä, A.N. Maximov, G. Menon, W. Meyer, A. Mielech, Yu.V. Mikhailov, M.A. Moinester, F. Molinié, F. Mota, A. Mutter, T. Nagel, O. Nähle, J. Nassalski, S. Neliba, F. Nerling, D. Neyret, M. Niebuhr, T. Niinikoski, V.I. Nikolaenko, A.A. Nozdrin, A.G. Olshevsky, M. Ostrick, A. Padee, P. Pagano, S. Panebianco, B. Parsamyan, D. Panzieri, S. Paul, B. Pawlukiewicz, H. Pereira, D.V. Peshekhonov, V.D. Peshekhonov, D. Piedigrossi, G. Piragino, S. Platchkov, K. Platzer, J. Pochodzalla, J. Polak, V.A. Polyakov, G. Pontecorvo, A.A. Popov, J. Pretz, S. Procureur, C. Quintans, J.-F. Rajotte, S. Ramos, I. Razaq, P. Rebourgeard, D. Reggiani, G. Reicherz, A. Richter, F. Robinet, E. Rocco, E. Rondio, L. Ropelewski, J.Y. Roussé, A.M. Rozhdestvensky, D. Ryabchikov, A.G. Samartsev, V.D. Samoylenko, A. Sandacz, M. Sans Merce, H. Santos, M.G. Sapozhnikov, F. Sauli, I.A. Savin, P. Schiavon, C. Schill, T. Schmidt, H. Schmitt, L. Schmitt, P. Schönmeier, W. Schroeder, D. Seeharsch, M. Seimetz, D. Setter, A. Shaligin, O.Yu. Shevchenko, A.A. Shishkin, H.-W. Siebert, L. Silva, F. Simon, L. Sinha, A.N. Sissakian, M. Slunecka, G.I. Smirnov, D. Sora, S. Sosio, F. Sozzi, A. Srnka, F. Stinzing, M. Stolarski, V.P. Sugonyaev, M. Sulc, R. Sulej, G. Tarte, N. Takabayashi, V.V. Tchalishev, S. Tessaro, F. Tessarotto, A. Teufel, D. Thers, L.G. Tkatchev, T. Toeda, V.V. Tokmenin, S. Trippel, J. Urban, R. Valbuena, G. Venugopal, M. Virius, N.V. Vlassov, A. Vossen, M. Wagner, R. Webb, E. Weise, Q. Weitzel, U. Wiedner, M. Wiesmann, R. Windmolders, S. Wirth, W. Wiślicki, H. Wollny, A.M. Zanetti, K. Zaremba, M. Zavertyaev, J. Zhao, R. Ziegler, M. Ziembicki, Y.L. Zlobin, A. Zvyagin
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 577:455-518
The COMPASS experiment makes use of the CERN SPS high-intensitymuon and hadron beams for the investigation of the nucleon spin structure and the spectroscopy of hadrons. One or more outgoing particles are detected in coincidence with the incoming muo
Autor:
A.A. Lednev, Sergey Donskov, A. M. Gorin, Susumu Inaba, V.A. Polyakov, I. V. Manuilov, V.N. Kolosov, V. A. Lishin, Yu.V. Mikhailov, A. M. Blik, V.P. Sugonyaev, Tsuneaki Tsuru, G.V. Khaustov, Kunio Takamatsu, M. E. Ladygin, A. E. Sobol, V.D. Samoylenko
Publikováno v:
Physics of Atomic Nuclei. 70:693-701
Searches for rare and forbidden neutral decays of η mesons are performed at the GAMS-4π facility. A charge-exchange reaction at an initial momentum of 32.5 GeV/c was used as a source of 3.7 × 106 η mesons. The following upper limits are establish
Autor:
Aram Kotzinian, R. Windmolders, M.G. Sapozhnikov, S. Neliba, L. Schmitt, A. Janata, J. Zhao, E. Burtin, J. Lichtenstadt, R. Geyer, D.V. Peshekhonov, P. Schiavon, V.F. Konstantinov, Q. Weitzel, J. Pretz, L. Ferrero, H. Fischer, A.G. Olshevsky, T. Hasegawa, S. Procureur, R. Ziegler, Yu. Alexandrov, A. Chapiro, M. Fabro, V.F. Obraztsov, M. Maggiora, K. Zaremba, D. Neyret, G.I. Smirnov, Fabrice Gautheron, M. A. Faessler, V.A. Polyakov, R. C. Webb, A. Mielech, S. Ishimoto, Frank Klein, Andres Cicuttin, A. Amoroso, G. Reicherz, J. Marzec, St. Goertz, V.Yu. Alexakhin, A. Korzenev, Colin Bernet, Massimo Lamanna, Yu. Kisselev, A. Sandacz, A. Srnka, R. Sulej, C. Ilgner, S. Platchkov, S. Dalla Torre, V.P. Sugonyaev, N.P. Kravchuk, A. Bravar, M. Ostrick, I. Konorov, M. Stolarski, C. Quintans, Grzegorz Brona, Gerhard K. Mallot, A. Zvyagin, Murray Moinester, S. Ramos, Alessandro Bressan, F. Tessarotto, E. M. Kabuß, A.M. Rozhdestvensky, N. V. Khomutov, A. Gorin, I.A. Savin, T. Matsuda, T. Iwata, Z.V. Kroumchtein, F. Sozzi, D. von Harrach, F. Balestra, Franco Bradamante, F.H. Heinsius, Norihiro Doshita, S. Gerassimov, W. Eyrich, J. Ball, L. G. Tkatchev, V. Falaleev, N. Horikawa, H.-W. Siebert, Yu.V. Mikhailov, S. Koblitz, N. d'Hose, E.V. Komissarov, A. Grasso, Sergey Donskov, S. Paul, V. Diaz Kavka, R. Jahn, A. Magnon, A. N. Sissakian, B. Grube, D. Panzieri, J. Nassalski, O.Yu. Denisov, T. Liška, Yu.A. Khokhlov, I. Ludwig, R. Joosten, K. Kurek, G. D. Alexeev, O.A. Grajek, Miroslav Sulc, F. Hinterberger, C. Marchand, A. Maximov, W. Dünnweber, M. Virius, J.M. Friedrich, V.D. Samoylenko, E. Weise, J. Pochodzalla, M.L. Colantoni, S. Hedicke, O.P. Gavrichtchouk, L. Sinha, J. Marroncle, S.S. Dasgupta, N. Takabayashi, J. Bisplinghoff, A.I. Ioukaev, E. Rondio, K. Kondo, R. De Masi, P. Bordalo, M.P. Bussa, A.A. Shishkin, G.V. Khaustov, Alan D. Martin, J. Heckmann, J. Franz, S. Wirth, Y. Bedfer, J. Hannappel, Paolo Pagano, Vladimir Peshekhonov, J. M. Le Goff, R. Birsa, N.I. Jouravlev, S. Horikawa, P.D. Eversheim, G. Piragino, V. Duic, W. Meyer, Maria Liz Crespo, M.E. Ladygin, A.A. Nozdrin, C. Heß, M. Giorgi, V. Frolov, V.N. Kolosov, F. Stinzing, N.A. Koutchinski, R. Kuhn, D. Kang, K. Königsmann, Christian Schill, A. Padee, O. Nähle, R. Bertini, A.B. Sadovski, R. Hermann, Andrea Ferrero, A. Maggiora, V.A. Dorofeev, L. Dhara, M. Slunecka, B. Badelek, W. Wiślicki, B. Gobbo, A.S. Korentchenko, A.M. Dinkelbach, B. Ketzer, A. Teufel, Oleg V. Ivanov, M. von Hodenberg, F. Kunne, A.A. Popov, N.V. Vlassov, Günter Baum, O.Yu. Shevchenko, V.I. Nikolaenko, R. Garfagnini, M. Finger, V.V. Tchalishev, S. Costa, J.H. Koivuniemi, S. Panebianco
Publikováno v:
Physics Letters B. 647:330-340
We present a precise measurement of the deuteron longitudinal spin asymmetry A 1 d and of the deuteron spin-dependent structure function g 1 d at Q 2 1 ( GeV / c ) 2 and 4 × 10 −5 x 2.5 × 10 −2 based on the data collected by the COMPASS experim
Autor:
R. Sulej, S. Neliba, P. Berglund, B. Grube, M.G. Sapozhnikov, H. Schmitt, A. Maggiora, E. Rondio, M. Varanda, A. Zvyagin, W. Kastaun, Colin Bernet, A. Srnka, I. Konorov, M.P. Bussa, A. Korzenev, E.S. Ageev, F. H. Heinsius, S. Gerassimov, J. M. Le Goff, T. Toeda, Marc Wagner, P.D. Eversheim, A. Mielech, S. Ishimoto, Frank Klein, K. Kondo, K. Zaremba, M. Wiesmann, J. Reymann, A.A. Shishkin, V. Duic, Sergey Donskov, O.P. Gavrichtchouk, S. Platchkov, P. Rebourgeard, Y. Bedfer, N. Dedek, L. Sinha, F. Balestra, S. Paul, R. Ziegler, V.N. Kolosov, V.A. Polyakov, N.P. Kravchuk, A.K. Konoplyannikov, J. Zhao, R. Jahn, A. Gorin, V. Diaz, M. Maggiora, R. Ijaduola, N. Takabayashi, R. De Masi, P. Bordalo, J. Bisplinghoff, Massimo Lamanna, Yu. Kisselev, A. Amoroso, Vladimir Peshekhonov, R. Birsa, E.V. Komissarov, Andres Cicuttin, J. Lichtenstadt, Norihiro Doshita, G. Piragino, N. d'Hose, Yu.A. Khokhlov, A. Maximov, G. Reicherz, Josef Pochodzalla, I. Ludwig, Naoaki Horikawa, M. Ostrick, Aram Kotzinian, R. Windmolders, A.A. Nozdrin, J. Nassalski, M. Giorgi, R. Bertini, Andrea Ferrero, Oleg V. Ivanov, R. Joosten, S. Dalla Torre, A. N. Sissakian, J.M. Friedrich, V.D. Samoylenko, Yu. Alexandrov, P. Fauland, Christian Schill, C. Marchand, M.E. Ladygin, V.F. Obraztsov, M. Finger, E. Weise, L. Ferrero, D. Kang, M.L. Colantoni, K. Königsmann, S. Hedicke, A. Colavita, S. Horikawa, R. C. Webb, A.M. Dinkelbach, K. Platzer, V.N. Bytchkov, A.V. Dolgopolov, S. Procureur, K. Kowalik, A.B. Sadovski, L. Cerini, V.I. Tretyak, J. Pretz, A. Grünemaier, G.V. Krivokhizhin, O.A. Grajek, N.A. Koutchinski, M. von Hodenberg, A. Sandacz, F. Karstens, U. Wiedner, S. S. Dasgupta, G.V. Khaustov, L. Schmitt, A. Grasso, M. Stolarski, J. Franz, L. G. Tkatchev, F. Stinzing, Grzegorz Brona, Miroslav Sulc, D. Thers, Anna Zanetti, A. Janata, Franco Bradamante, Gerhard K. Mallot, J. Ehlers, F. Kunne, V.V. Tchalishev, N.I. Jouravlev, S. Costa, E. Burtin, V.F. Konstantinov, W. Meyer, Maria Liz Crespo, A.I. Ioukaev, F. Sozzi, R. Hermann, E. M. Kabuß, Paolo Pagano, V.P. Sugonyaev, Q. Weitzel, A.A. Popov, S. Ramos, J.H. Koivuniemi, K. Rith, F. Hinterberger, P. Schiavon, S. Panebianco, H. Fischer, K. Medved, Alan D. Martin, Z.V. Kroumchtein, W. Eyrich, T. Hasegawa, A. Chapiro, Murray Moinester, T. Schmidt, D. Neyret, M. A. Faessler, Alessandro Bressan, D. von Harrach, C. Ilgner, Yu.V. Mikhailov, S. Trousov, J. Marzec, R. Geyer, A.G. Olshevsky, St. Goertz, O.Yu. Denisov, C. Heß, A. Magnon, L. Dhara, M. Slunecka, Takahiro Iwata, E. Saller, S. Koblitz, M. Sans, B. Gobbo, B. Badelek, J. Marroncle, A. Teufel, Miroslav Virius, K. Kurek, A. Padee, B. Ketzer, D. Peshekhonov, W. Wiślicki, H. D. Pereira, N.V. Vlassov, S. Wirth, C. Quintans, J. Hannappel, Günter Baum, O.Yu. Shevchenko, I.A. Savin, A. Bravar, V.I. Nikolaenko, R. Garfagnini, H.-W. Siebert, I. Manuilov, V. Falaleev, D. Panzieri, T. Liška, M. Fabro, M. Leberig, A.M. Rozhdestvensky, N. V. Khomutov, J. Ball, G.I. Smirnov, Fabrice Gautheron, T. Matsuda, V. Frolov, V.Yu. Alexakhin, W. Dünnweber, G. D. Alexeev, V.A. Dorofeev, A.S. Korentchenko, F. Tessarotto, R. Kuhn, O. Nähle, V. Kalinnikov, A. Skachkova
Publikováno v:
Physics Letters B. 633:25-32
We present a determination of the gluon polarization Δ G / G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q 2 1 ( GeV / c ) 2 , with a pair of large transverse-momentum hadrons in the final state. The data we
Autor:
Susumu Inaba, V.A. Polyakov, A. E. Sobol, Jean Pierre Peigneux, Tsuneaki Tsuru, Yoshiji Yasu, Kunio Takamatsu, H. M. Shimizu, I. Fujii, V. A. Lishin, Yu.V. Mikhailov, Freddy Binon, G.V. Khaustov, Andrey Lednev, S. A. Sadovsky, V.N. Kolosov, Sergey Donskov, V. D. Samoilenko, A. M. Blik, V.P. Sugonyaev, Jean-Pierre Stroot
Publikováno v:
Physics of Atomic Nuclei / Yadernaya Fizika
Physics of Atomic Nuclei / Yadernaya Fizika, MAIK Nauka/Interperiodica, 2005, 68, pp.960-973. ⟨10.1134/1.1954822⟩
Physics of Atomic Nuclei / Yadernaya Fizika, MAIK Nauka/Interperiodica, 2005, 68, pp.960-973. ⟨10.1134/1.1954822⟩
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 par
Autor:
S. Inaba, U. Van Bogget, V.P. Sugonyaev, T. Baba, K. Takamatsu, Motoi Inaba, T. Tsuru, T. Melebeck
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 442:309-315
A fast charge-to-amplitude converter (QAC) chip has been developed for the readout electronics of the electromagnetic calorimeter (ECAL) of the COMPASS experiment at CERN SPS. It is fabricated using a new advanced complementary bipolar process from H
Autor:
V. A. Lishin, Sergey Donskov, S. Inaba, Mikhail Korzhik, A.V. Dolgopolov, A.A. Lednev, Vassili Kachanov, A.V. Singovsky, A.M. Blick, T. Tsuru, Yu.D. Prokoshkin, V.N. Kolosov, K. Takamatsu, G.V. Khaustov, H. M. Shimizu, Freddy Binon, Jean-Pierre Stroot, V.P. Sugonyaev, Petr P.M. Shagin, Jean Pierre Peigneux
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 428:292-298
Small Angle Detector (SAD-150) is a PbWO4 heavy crystal electromagnetic calorimeter with high energy and coordinate resolution for multiphoton events. It has been included in the GAMS-4π setup and calibrated in muon and electron beams. Test measurem