DarkSide-50: status of the detector and results

Yann Guardincerri,P. Agnes,I. F. M. Albuquerque, T. Alexander, A. K. Alton, D. M. Asner, H. O. Back, B. Baldin, K. Biery, V. Bocci, G. Bonfini, W. Bonivento, M. Bossa,Bianca Bottino, A. Brigatti,J. Brodsky, F. Budano, S. Bussino,M. Cadeddu,L. Cadonati,M. Cadoni, F. Calaprice,N. Canci,A. Candela, M. Caravati, M. Cariello, M. Carlini, S. Catalanotti, P. Cavalcante, A. Chepurnov, Corrado Cicalo,A. Cocco,G. Covone,D. D'Angelo,M. D'Incecco,S. Davini,S. De Cecco,M. De Deo, M. De Vincenzi,A. Derbin, A. Devoto, F. Di Eusanio,G. Di Pietro,C. Dionisi, E. Edkins, A. Empl, A. Fan,G. Fiorillo, K. Fomenko,G. Forster,D. Franco,F. Gabriele, C. Galbiati, Stefano Giagu,C. Giganti,G. Giovanetti, A. Goretti, F. Granato,L. Grandi, M. Gromov, M. Guan, B. Hackett, K. Herner, D. Hughes, P. Humble,E. V. Hungerford, Al. Ianni, An. Ianni, I. James, T. N. Johnson, C. Jollet, K. Keeter, C. L. Kendziora, G. Koh, D. Korablev, G. Korga,A. Kubankin,X. Li,M. Lissia,B. Loer, P. Lombardi,G. Longo,Y. Ma, I. Machulin, A. Mandarano, S. M. Mari,J. Maricic,L. Marini, C. J. Martoff,A. Meregaglia,P. D. Meyers, R. Milincic,J. D. Miller, D. Montanari,A. Monte, B. J. Mount, V. Muratova, P. Musico,J. Napolitano, A. Navrer Agasson, S. Odrowski, M. Orsini, F. Ortica, L. Pagani,M. Pallavicini, E. Pantic, S. Parmeggiano,K. Pelczar, N. Pelliccia,A. Pocar, S. Pordes, D. A. Pugachev,H. Qian, K. Randle,G. Ranucci, M. Razeti,A. Razeto, B. Reinhold,A. L. Renshaw, M. Rescigno, Q. Riffard,A. Romani,B. Rossi,N. Rossi, D. Rountree, D. Sablone,P. Saggese,R. Saldanha, W. Sands,C. Savarese, B. Schlitzer,E. Segreto, D. Semenov,E. Shields, P. N. Singh, M. Skorokhvatov, O. Smirnov,A. Sotnikov,C. Stanford, Y. Suvorov, R. Tartaglia, J. Tatarowicz, G. Testera, A. Tonazzo,P. Trinchese,E. Unzhakov,M. Verducci, A. Vishneva, B. Vogelaar, M. Wada, S. Walker, H. Wang, Y. Wang,A. W. Watson,S. Westerdale, J. Wilhelmi, M. Wojcik,X. Xiang,X. Xiao,J. Xu, C. Yang, A. Zec, W. Zhong, C. Zhu,G. Zuzel

Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016)（2017）

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摘要

DarkSide-50 is a direct dark matter search experiment operating underground at Laboratori Nazionali del Gran Sasso. It is based on a Time Projection Chamber (TPC) that contains 50~kg of liquid argon;the TPC cryostat sits inside an active neutron veto based on a boron-loaded organic scintillator, which is in turn installed inside a water Cherenkov muon veto. The experiment started acquiring data in Nov 2013 filled with atmospheric argon. In April 2015 it commissioned the low-radioactivity argon from underground sources and has been running in a stable manner since then. We report the current status of the detector and the latest results, including the measurement of the radioactivity of the underground argon and the most sensitive dark matter search performed with an argon target.

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