The COMPASS setup for physics with hadron beams

P. Abbon, C. Adolph, R. Akhunzyanov, Yu Alexandrov, M. G. Alexeev, G. D. Alexeev, A. Amoroso, V. Andrieux, V. Anosov, A. Austregesilo, B. Badełek, F. Balestra, J. Barth, G. Baum, R. Beck, Y. Bedfer, A. Berlin, J. Bernhard, K. Bicker, E. R. BielertJ. Bieling, R. Birsa, J. Bisplinghoff, M. Bodlak, M. Boer, P. Bordalo, F. Bradamante, C. Braun, A. Bressan*, M. Büchele, E. Burtin, L. Capozza, P. Ciliberti, M. Chiosso, S. U. Chung, A. Cicuttin, M. Colantoni, D. Cotte, M. L. Crespo, Q. Curiel, T. Dafni, S. Dalla Torre, S. S. Dasgupta, S. Dasgupta, O. Yu Denisov, D. Desforge, A. M. Dinkelbach, S. V. Donskov, N. Doshita, V. Duic, W. Dünnweber, D. Durand, M. Dziewiecki, A. Efremov, C. Elia, P. D. Eversheim, W. Eyrich, M. Faessler, A. Ferrero, M. Finger, M. Finger, H. Fischer, C. Franco, N. Du Fresne Von Hohenesche, J. M. Friedrich, V. Frolov, L. Gatignon, F. Gautheron, O. P. Gavrichtchouk, S. Gerassimov, R. Geyer, A. Giganon, I. Gnesi, B. Gobbo, S. Goertz, M. Gorzellik, S. Grabmüller, A. Grasso, M. Gregori, B. Grube, T. Grussenmeyer, A. Guskov, F. Haas, D. Von Harrach, D. Hahne, R. Hashimoto, F. H. Heinsius, F. Herrmann, F. Hinterberger, Ch Höppner, N. Horikawa, N. D'Hose, S. Huber, S. Ishimoto, A. Ivanov, Yu Ivanshin, T. Iwata, R. Jahn, V. Jary, P. Jasinski, P. Jörg, R. Joosten, E. Kabuß, B. Ketzer, G. V. Khaustov, Yu A. Khokhlov, Yu Kisselev, F. Klein, K. Klimaszewski, J. H. Koivuniemi, V. N. Kolosov, K. Kondo, K. Königsmann, I. Konorov, V. F. Konstantinov, A. M. Kotzinian, O. Kouznetsov, M. Krämer, Z. V. Kroumchtein, N. Kuchinski, R. Kuhn, F. Kunne, K. Kurek, R. P. Kurjata, A. A. Lednev, A. Lehmann, M. Levillain, S. Levorato, J. Lichtenstadt, A. Maggiora, A. Magnon, N. Makke, G. K. Mallot, C. Marchand, J. Marroncle, A. Martin, J. Marzec, J. Matousek, H. Matsuda, T. Matsuda, G. Menon, G. Meshcheryakov, W. Meyer, T. Michigami, Yu V. Mikhailov, Y. Miyachi, M. A. Moinester, A. Nagaytsev, T. Nagel, F. Nerling, S. Neubert, D. Neyret, V. I. Nikolaenko, J. Novy, W. D. Nowak, A. S. Nunes, A. G. Olshevsky, I. Orlov, M. Ostrick, R. Panknin, D. Panzieri, B. Parsamyan, S. Paul, G. Pesaro, V. Pesaro, D. V. Peshekhonov, C. Pires, S. Platchkov, J. Pochodzalla, V. A. Polyakov, J. Pretz, M. Quaresma, C. Quintans, S. Ramos, C. Regali, G. Reicherz, J. M. Reymond, E. Rocco, N. S. Rossiyskaya, J. Y. Rousse, D. I. Ryabchikov, A. Rychter, A. Samartsev, V. D. Samoylenko, A. Sandacz, S. Sarkar, I. A. Savin, G. Sbrizzai, P. Schiavon, C. Schill, T. Schlüter, K. Schmidt, H. Schmieden, K. Schönning, S. Schopferer, M. Schott, O. Yu Shevchenko, L. Silva, L. Sinha, S. Sirtl, M. Slunecka, S. Sosio, F. Sozzi, A. Srnka, L. Steiger, M. Stolarski, M. Sulc, R. Sulej, H. Suzuki, A. Szabelski, T. Szameitat, P. Sznajder, S. Takekawa, G. Terça, J. Ter Wolbeek, S. Tessaro, F. Tessarotto, F. Thibaud, V. Tskhay, S. Uhl, I. Uman, M. Virius, L. Wang, T. Weisrock, Q. Weitzel, M. Wilfert, R. Windmolders, H. Wollny, K. Zaremba, M. Zavertyaev, E. Zemlyanichkina, M. Ziembicki, A. Zink

*Corresponding author for this work

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Abstract

The main characteristics of the COMPASS experimental setup for physics with hadron beams are described. This setup was designed to perform exclusive measurements of processes with several charged and/or neutral particles in the final state. Making use of a large part of the apparatus that was previously built for spin structure studies with a muon beam, it also features a new target system as well as new or upgraded detectors. The hadron setup is able to operate at the high incident hadron flux available at CERN. It is characterised by large angular and momentum coverages, large and nearly flat acceptances, and good two and three-particle mass resolutions. In 2008 and 2009 it was successfully used with positive and negative hadron beams and with liquid hydrogen and solid nuclear targets. This paper describes the new and upgraded detectors and auxiliary equipment, outlines the reconstruction procedures used, and summarises the general performance of the setup.

Funding

FundersFunder number
Israel Academy of Sciences and Humanities
Seventh Framework Programme
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Bundesministerium für Bildung und Forschung
Daiko Foundation
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Deutsche Forschungsgemeinschaft
Yamada Foundation
Fundaçāo para a Ciência e Tecnologia
Ministero dell’Istruzione, dell’Università e della Ricerca
Programa Operacional Temático Factores de Competitividade
State Key Laboratory of Structural Analysis for Industrial Equipment
Center for Strategic Research
Ministry of Education, Culture, Sports, Science and Technology
Ministerstvo Školství, Mládeže a TělovýchovyLA242, ME492
Fundação para a Ciência e a TecnologiaCERN/FP/109323/2009
QRENCERN/FP/116376/2010, CERN/FP/123600/2011
CERN-RFBR12-02-91500, 08-02-91009
European Commission283286
Narodowe Centrum NaukiDEC-2011/01/M/ST2/02350
Japan Society for the Promotion of Science18002006, 20540299, 18540281

    Keywords

    • Calorimetry
    • Data acquisition and reconstruction
    • Fixed target experiment for hadron spectroscopy
    • Front-end electronics
    • Micro Pattern detectors and Drift chambers
    • Monte-Carlo simulation
    • RICH

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