The active muon shield in the SHiP experiment

A. Akmete, A. Alexandrov, A. Anokhina, S. Aoki, E. Atkin, N. Azorskiy, J. J. Back, A. Bagulya, A. Baranov, G. J. Barker, A. Bay, V. Bayliss, G. Bencivenni, A. Y. Berdnikov, Y. A. Berdnikov, M. Bertani, C. Betancourt, I. Bezshyiko, O. Bezshyyko, D. BickS. Bieschke, A. Blanco, J. Boehm, M. Bogomilov, K. Bondarenko, W. M. Bonivento, A. Boyarsky, R. Brenner, D. Breton, R. Brundler, M. Bruschi, V. Büscher, A. Buonaura, S. Buontempo, S. Cadeddu, A. Calcaterra, M. Campanelli, J. Chauveau, A. Chepurnov, M. Chernyavsky, K. Y. Choi, A. Chumakov, P. Ciambrone, G. M. Dallavalle, N. D'Ambrosio, G. D'Appollonio, G. De Lellis, A. De Roeck, M. De Serio, L. Dedenko, A. Di Crescenzo, N. Di Marco, C. Dib, H. Dijkstra, V. Dmitrenko, D. Domenici, S. Donskov, A. Dubreuil, J. Ebert, T. Enik, A. Etenko, F. Fabbri, L. Fabbri, O. Fedin, G. Fedorova, G. Felici, M. Ferro-Luzzi, R. A. Fini, P. Fonte, C. Franco, T. Fukuda, G. Galati, G. Gavrilov, S. Gerlach, L. Golinka-Bezshyyko, D. Golubkov, A. Golutvin, D. Gorbunov, S. Gorbunov, V. Gorkavenko, Y. Gornushkin, M. Gorshenkov, V. Grachev, E. Graverini, V. Grichine, A. M. Guler, Yu Guz, C. Hagner, H. Hakobyan, E. Van Herwijnen, A. Hollnagel, B. Hosseini, M. Hushchyn, G. Iaselli, A. Iuliano, R. Jacobsson, M. Jonker, I. Kadenko, C. Kamiscioglu, M. Kamiscioglu, M. Khabibullin, G. Khaustov, A. Khotyantsev, S. H. Kim, V. Kim, Y. G. Kim, N. Kitagawa, J. W. Ko, K. Kodama, A. Kolesnikov, D. I. Kolev, V. Kolosov, M. Komatsu, N. Konovalova, M. A. Korkmaz, I. Korol, I. Korol'Ko, A. Korzenev, S. Kovalenko, I. Krasilnikova, K. Krivova, Y. Kudenko, V. Kurochka, E. Kuznetsova, H. M. Lacker, A. Lai, G. Lanfranchi, O. Lantwin, A. Lauria, H. Lebbolo, K. Y. Lee, J. M. Lévy, L. Lopes, V. Lyubovitskij, J. Maalmi, A. Magnan, V. Maleev, A. Malinin, A. Mefodev, P. Mermod, S. Mikado, Yu Mikhaylov, D. A. Milstead, O. Mineev, A. Montanari, M. C. Montesi, K. Morishima, S. Movchan, N. Naganawa, M. Nakamura, T. Nakano, A. Novikov, B. Obinyakov, S. Ogawa, N. Okateva, P. H. Owen, A. Paoloni, B. D. Park, L. Paparella, A. Pastore, M. Patel, D. Pereyma, D. Petrenko, K. Petridis, D. Podgrudkov, V. Poliakov, N. Polukhina, M. Prokudin, A. Prota, A. Rademakers, F. Ratnikov, T. Rawlings, M. Razeti, F. Redi, S. Ricciardi, T. Roganova, A. Rogozhnikov, H. Rokujo, G. Rosa, T. Rovelli, O. Ruchayskiy, T. Ruf, V. Samoylenko, A. Saputi, O. Sato, E. S. Savchenko, W. Schmidt-Parzefall, N. Serra, A. Shakin, M. Shaposhnikov, P. Shatalov, T. Shchedrina, L. Shchutska, V. Shevchenko, H. Shibuya, A. Shustov, S. B. Silverstein, S. Simone, M. Skorokhvatov, S. Smirnov, J. Y. Sohn, A. Sokolenko, N. Starkov, B. Storaci, P. Strolin, S. Takahashi, I. Timiryasov, V. Tioukov, N. Tosi, D. Treille, R. Tsenov, S. Ulin, A. Ustyuzhanin, Z. Uteshev, G. Vankova-Kirilova, F. Vannucci, P. Venkova, S. Vilchinski, M. Villa, K. Vlasik, A. Volkov, R. Voronkov, R. Wanke, J. K. Woo, M. Wurm, S. Xella, D. Yilmaz, A. U. Yilmazer, C. S. Yoon, Yu Zaytsev

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The SHiP experiment is designed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at the CERN SPS. An essential task for the experiment is to keep the Standard Model background level to less than 0.1 event after 2× 1020 protons on target. In the beam dump, around 1011 muons will be produced per second. The muon rate in the spectrometer has to be reduced by at least four orders of magnitude to avoid muon-induced combinatorial background. A novel active muon shield is used to magnetically deflect the muons out of the acceptance of the spectrometer. This paper describes the basic principle of such a shield, its optimization and its performance.

Original languageEnglish
Article numberP05011
JournalJournal of Instrumentation
Volume12
Issue number5
DOIs
Publication statusPublished - 17 May 2017

Keywords

  • Detector design and construction technologies and materials
  • Performance of High Energy Physics Detectors

ASJC Scopus subject areas

  • Instrumentation
  • Mathematical Physics

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    Akmete, A., Alexandrov, A., Anokhina, A., Aoki, S., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Baranov, A., Barker, G. J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., ... Zaytsev, Y. (2017). The active muon shield in the SHiP experiment. Journal of Instrumentation, 12(5), [P05011]. https://doi.org/10.1088/1748-0221/12/05/P05011