From Fermi to Planck : a bottom up approach

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Sensitivity of the SHiP experiment to light dark matter

Publication . Ahdida, C.; Akmete, A.; Albanese, R.; Alexandrov, A.; Anokhina, A.; Aoki, S.; Arduini, G.; Atkin, E.; Azorskiy, N.; Back, J. J.; Bagulya, A.; Karpenkov, D.; Kershaw, K.; Battistin, M.; Uvarov, L.; Khabibullin, M.; Bezshyiko, I.; Golubkov, D.; Khalikov, E.; Khaustov, G.; Tosi, N.; D’Appollonio, G.; Krasilnikova, I.; Khoriauli, G.; Redi, F.; Khotyantsev, A.; Sanchez Galan, F.; Durhan, O.; Kim, Y. G.; Lantwin, O.; Vankova-Kirilova, G.; Marsh, S.; de Asmundis, R.; Kolev, D. I.; Marshall, A. M.; Mattelaer, O.; Mefodev, A.; Mermod, P.; Miano, A.; Mikado, S.; Mikhaylov, Yu.; Milstead, D. A.; Poliakov, V.; De Carvalho Saraiva, J.; Rodin, Volodymyr; Pastore, A.; Di Giulio, L.; Sato, O.; Prieto Prieto, J.; Ehlert, M.; Mineev, O.; Robbe, P.; Froeschl, R.; Montanari, A.; Rademakers, A.; Berdnikov, Y. A.; Bondarenko, K.; Woo, J.-K.; Montesi, M. C.; Morishima, K.; Rovelli, T.; Movchan, S.; Yoon, C. S.; Bencivenni, G.; Muttoni, Y.; De Lellis, G.; Naganawa, N.; Elikkaya, E.; Nakamura, M.; Tramontano, F.; Fabbri, F.; Bieschke, S.; Bonivento, W. M.; Nakano, T.; Di Marco, N.; Nasybulin, S.; Kono, A.; Frugiuele, C.; Ninin, P.; Venturi, V.; Gatignon, L.; Ferrillo, M.; Nishio, A.; Polukhina, N.; Bertani, M.; Novikov, A.; Enik, T.; Bick, D.; Obinyakov, B.; Kurochka, V.; Ogawa, S.; Okateva, N.; Wurm, M.; Treille, D.; Savchenko, E. S.; Golovtsov, V.; Kitagawa, N.; Opitz, B.; de Magistris, M.; Rodin, Viktor; Osborne, J.; Ovchynnikov, M.; Fukuda, T.; Dib, C.; Owtscharenko, N.; Golovatiuk, A.; Malinin, A.; Owen, P. H.; Pacholek, P.; De Roeck, A.; Ratnikov, F.; Betancourt, C.; Vilchinski, S.; Paoloni, A.; Xella, S.; Korol’ko, I.; Park, B. D.; Rodrigues Cavalcante, A. B.; Dijkstra, H.; Schliwinski, J. S.; Petridis, K.; Schmidt-Parzefall, W.; Serra, N.; Sgobba, S.; Shadura, O.; Shakin, A.; Shaposhnikov, M.; Shatalov, P.; Shchedrina, T.; Tsenov, R.; Vincke, Helmut; Than Naing, S.; Ko, J.-W.; Zaytsev, Yu.; Ulin, S.; Korzenev, A.; Blanco, A.; Vlasik, K.; Lauria, A.; Shchutska, L.; Baaltasar Dos Santos, F.; Baranov, A.; Fedin, O.; Shevchenko, V.; Shibuya, H.; Wertelaers, P.; Shirobokov, S.; Filippov, K.; Gavrilov, G.; Shustov, A.; Silverstein, S. B.; Bay, A.; Simone, S.; De Serio, M.; Kovalenko, S.; Golutvin, A.; Gorshenkov, M.; Simoniello, R.; Kodama, K.; Skorokhvatov, M.; Lee, K. S.; Smirnov, S.; Dougherty, L. A.; Lopes, L.; Kurbatov, P.; Boehm, J.; Boiarska, I.; Goddard, B.; Sohn, J. Y.; Kostyukhin, V.; Sokolenko, A.; Ricciardi, S.; Solodko, E.; Starkov, N.; Fedotovs, F.; De Simone, D.; Zelenov, A.; Maleev, V.; Patel, M.; Stoel, L.; Visone, C.; Stramaglia, M. E.; Sukhonos, D.; Lee, K. Y.; Bauche, J.; Suzuki, Y.; Magnan, A.; Sanz Ull, A.; Takahashi, S.; Tastet, J. L.; Vannucci, F.; Golinka-Bezshyyko, L.; Dolmatov, A.; Bogomilov, M.; Felici, G.; Prokudin, M.; Teterin, P.; Volkov, A.; Kolesnikov, A.; Zimmerman, J.; Borburgh, J.; Boyarsky, A.; Brenner, R.; Breton, D.; Büscher, V.; Buonaura, A.; Buonocore, L.; Buontempo, S.; Dedenko, L.; Donskov, S.; Pereyma, D.; Fini, R. A.; Dergachev, P.; Prota, A.; Gorbounov, P.; Dubreuil, A.; Roganova, T.; Cadeddu, S.; Fraser, M.; Fresa, R.; Calcaterra, A.; Calviani, M.; Etenko, A.; Campanelli, M.; Kuznetsova, E.; Lopez Sola, E.; Casolino, M.; Charitonidis, N.; Gall, J.; Chau, P.; Rakai, A.; Maltoni, F.; Berdnikov, A. Y.; Chauveau, J.; Perillo-Marcone, A.; Chepurnov, A.; Rokujo, H.; Chernyavskiy, M.; Kolosov, V.; Ruchayskiy, O.; Gorbunov, D.; Gorkavenko, V.; Lyubovitskij, V.; Choi, K.-Y.; Quercia, A.; Chumakov, A.; Vincke, Heinz; Ciambrone, P.; Cicero, V.; Kudenko, Y.; Fonte, P.; Santos Diaz, P.; Timiryasov, I.; Congedo, L.; Drohan, V.; Cornelis, K.; Cristinziani, M.; Rosa, G.; Galati, G.; Crupano, A.; Yilmazer, A. U.; Dallavalle, G. M.; Datwyler, A.; Dmitrenko, V.; Maalmi, J.; Komatsu, M.; Gorbunov, S.; Kurbatov, E.; Ursov, E.; D’Ambrosio, N.; Petkov, G. L.; Franco, C.; Grachev, V.; Grandchamp, A. L.; Graverini, E.; Grenard, J.-L.; Grenier, D.; Grichine, V.; Gruzinskii, N.; Guler, A. M.; Konovalova, N.; Tioukov, V.; Lacker, H. M.; Kim, V.; Ustyuzhanin, A.; Manabe, Y.; Korol, I.; Voronkov, R.; Guz, Yu.; Lanfranchi, G.; Bardou, F.; Haefeli, G. J.; Koukovini Platia, E.; Hagner, C.; Rinaldesi, M.; Ruf, T.; Hakobyan, H.; Harris, I. W.; Loschiavo, V. P.; van Herwijnen, E.; Saputi, A.; Gentile, V.; Hessler, C.; Tommasini, D.; Hollnagel, A.; van Waasen, S.; Hosseini, B.; Petrov, A.; Williams, O.; Managadze, A. K.; Samoylenko, V.; Hushchyn, M.; Uteshev, Z.; Iaselli, G.; Domenici, D.; Barker, G. J.; Iuliano, A.; Rawlings, T.; Bayliss, V.; Yilmaz, D.; Jacobsson, R.; Kormannshaus, S.; Joković, D.; Jonker, M.; Wanke, R.; Lévy, J.-M.; Kadenko, I.; Ferro-Luzzi, M.; Kain, V.; Kaiser, B.; Samsonov, V.; Podgrudkov, D.; Manfredi, M.; Bezshyyko, O.; Di Crescenzo, A.; Kamiscioglu, C.; Torii, M.; Lamont, M.

Dark matter is a well-established theoretical addition to the Standard Model supported by many observations in modern astrophysics and cosmology. In this context, the existence of weakly interacting massive particles represents an appealing solution to the observed thermal relic in the Universe. Indeed, a large experimental campaign is ongoing for the detection of such particles in the sub-GeV mass range. Adopting the benchmark scenario for light dark matter particles produced in the decay of a dark photon, with αD = 0.1 and mA′ = 3mχ, we study the potential of the SHiP experiment to detect such elusive particles through its Scattering and Neutrino detector (SND). In its 5-years run, corresponding to 2 · 1020 protons on target from the CERN SPS, we find that SHiP will improve the current limits in the mass range for the dark matter from about 1 MeV to 300 MeV. In particular, we show that SHiP will probe the thermal target for Majorana candidates in most of this mass window and even reach the Pseudo-Dirac thermal relic.

2021-04-20Journal article

Open access

The active muon shield in the SHiP experiment

Publication . SHiP collaboration (231 authors); Blanco, A.; Fonte, P.; Franco, C.; Lopes, L.

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 $2\times 10^{20}$ protons on target. In the beam dump, around $10^{11}$ 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.

2017-05-17Journal article

Open access