The active muon shield in the SHiP experiment
Instrumentation and Detectors
2017-05-19 v2 High Energy Physics - Experiment
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 protons on target. In the beam dump, around 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.
Cite
@article{arxiv.1703.03612,
title = {The active muon shield in the SHiP experiment},
author = {SHiP collaboration and A. Akmete and A. Alexandrov and A. Anokhina and S. Aoki and E. Atkin and N. Azorskiy and J. J. Back and A. Bagulya and A. Baranov and G. J. Barker and A. Bay and V. Bayliss and G. Bencivenni and A. Y. Berdnikov and Y. A. Berdnikov and M. Bertani and C. Betancourt and I. Bezshyiko and O. Bezshyyko and D. Bick and S. Bieschke and A. Blanco and J. Boehm and M. Bogomilov and K. Bondarenko and W. M. Bonivento and A. Boyarsky and R. Brenner and D. Breton and R. Brundler and M. Bruschi and V. Büscher and A. Buonaura and S. Buontempo and S. Cadeddu and A. Calcaterra and M. Campanelli and J. Chauveau and A. Chepurnov and M. Chernyavsky and K. -Y. Choi and A. Chumakov and P. Ciambrone and G. M. Dallavalle and N. D'Ambrosio and G. D'Appollonio and G. De Lellis and A. De Roeck and M. De Serio and L. Dedenko and A. Di Crescenzo and N. Di Marco and C. Dib and H. Dijkstra and V. Dmitrenko and D. Domenici and S. Donskov and A. Dubreuil and J. Ebert and T. Enik and A. Etenko and F. Fabbri and L. Fabbri and O. Fedin and G. Fedorova and G. Felici and M. Ferro-Luzzi and R. A. Fini and P. Fonte and C. Franco and T. Fukuda and G. Galati and G. Gavrilov and S. Gerlach and L. Golinka-Bezshyyko and D. Golubkov and A. Golutvin and D. Gorbunov and S. Gorbunov and V. Gorkavenko and Y. Gornushkin and M. Gorshenkov and V. Grachev and E. Graverini and V. Grichine and A. M. Guler and Yu. Guz and C. Hagner and H. Hakobyan and E. van Herwijnen and A. Hollnagel and B. Hosseini and M. Hushchyn and G. Iaselli and A. Iuliano and R. Jacobsson and M. Jonker and I. Kadenko and C. Kamiscioglu and M. Kamiscioglu and M. Khabibullin and G. Khaustov and A. Khotyantsev and S. H. Kim and V. Kim and Y. G. Kim and N. Kitagawa and J. -W. Ko and K. Kodama and A. Kolesnikov and D. I. Kolev and V. Kolosov and M. Komatsu and N. Konovalova and M. A. Korkmaz and I. Korol and I. Korol'ko and A. Korzenev and S. Kovalenko and I. Krasilnikova and K. Krivova and Y. Kudenko and V. Kurochka and E. Kuznetsova and H. M. Lacker and A. Lai and G. Lanfranchi and O. Lantwin and A. Lauria and H. Lebbolo and K. Y. Lee and J. -M. Lévy and V. Likacheva and L. Lopes and V. Lyubovitskij and J. Maalmi and A. Magnan and V. Maleev and A. Malinin and A. Mefodev and P. Mermod and S. Mikado and Yu. Mikhaylov and D. A. Milstead and O. Mineev and A. Montanari and M. C. Montesi and K. Morishima and S. Movchan and N. Naganawa and M. Nakamura and T. Nakano and A. Novikov and B. Obinyakov and S. Ogawa and N. Okateva and P. H. Owen and A. Paoloni and B. D. Park and L. Paparella and A. Pastore and M. Patel and D. Pereyma and D. Petrenko and K. Petridis and D. Podgrudkov and V. Poliakov and N. Polukhina and M. Prokudin and A. Prota and A. Rademakers and F. Ratnikov and T. Rawlings and M. Razeti and F. Redi and S. Ricciardi and T. Roganova and A. Rogozhnikov and H. Rokujo and G. Rosa and T. Rovelli and O. Ruchayskiy and T. Ruf and V. Samoylenko and A. Saputi and O. Sato and E. S. Savchenko and W. Schmidt-Parzefall and N. Serra and A. Shakin and M. Shaposhnikov and P. Shatalov and T. Shchedrina and L. Shchutska and V. Shevchenko and H. Shibuya and A. Shustov and S. B. Silverstein and S. Simone and M. Skorokhvatov and S. Smirnov and J. Y. Sohn and A. Sokolenko and N. Starkov and B. Storaci and P. Strolin and S. Takahashi and I. Timiryasov and V. Tioukov and N. Tosi and D. Treille and R. Tsenov and S. Ulin and A. Ustyuzhanin and Z. Uteshev and G. Vankova-Kirilova and F. Vannucci and P. Venkova and S. Vilchinski and M. Villa and K. Vlasik and A. Volkov and R. Voronkov and R. Wanke and J. -K. Woo and M. Wurm and S. Xella and D. Yilmaz and A. U. Yilmazer and C. S. Yoon and Yu. Zaytsev},
journal= {arXiv preprint arXiv:1703.03612},
year = {2017}
}
Comments
8 pages, 5 figures; added clarifications to the penalty function and emphasized that we care about neutrino interactions in the air