Current status of the dark matter experiment DarkSide-50

Marini, L. and Pagani, L. and Agnes, P. and Alexander, T. and Alton, A. and Arisaka, K. and Back, H. O. and Baldin, B. and Biery, K. and Bonfini, G. and Bossa, M. and Brigatti, A. and Brodsky, J. and Budano, F. and Cadonati, L. and Calaprice, F. and Canci, N. and Candela, A. and Cao, H. and Cariello, M. and Cavalcante, P. and Chavarria, A. and Chepurnov, A. and Cocco, A. G. and D'Angelo, D. and D'Incecco, M. and Davini, S. and De Deo, M. and Derbin, A. and Devoto, A. and Di Eusanio, F. and Di Pietro, G. and Edkins, E. and Empl, A. and Fan, A. and Fiorillo, G. and Fomenko, K. and Forster, G. and Franco, D. and Gabriele, F. and Galbiati, C. and Goretti, A. and Grandi, L. and Gromov, M. and Guan, M. Y. and Guardincerri, Y. and Hackett, B. and Herner, K. and Humble, P. and Hungerford, E. V. and Ianni, Al. and Ianni, An. and Jollet, C. and Keeter, K. and Kendziora, C. and Kidner, S. and Kobychev, V. and Koh, G. and Korablev, D. and Korga, G. and Kurlej, A. and Li, P. X. and Lombardi, P. and Love, C. and Ludhova, L. and Luitz, S. and Ma, Y. Q. and Machulin, I. and Mandarano, A. and Mari, S. and Maricic, J. and Martoff, C. J. and Meregaglia, A. and Meroni, E. and Meyers, P. D. and Milincic, R. and Montanari, D. and Montuschi, M. and Monzani, M. E. and Mosteiro, P. and Mount, B. and Muratova, V. and Musico, P. and Nelson, A. and Odrowski, S. and Okounkova, M. and Orsini, M. and Ortica, F. and Pallavicini, M. and Pantic, E. and Papp, L. and Parmeggiano, S. and Parsells, R. and Pelczar, K. and Pelliccia, N. and Perasso, S. and Pocar, A. and Pordes, S. and Pugachev, D. and Qian, H. and Randle, K. and Ranucci, G. and Razeto, A. and Reinhold, B. and Renshaw, A. and Romani, A. and Rossi, B. and Rossi, N. and Rountree, S. D. and Sablone, D. and Saggese, P. and Saldanha, R. and Sands, W. and Sangiorgio, S. and Segreto, E. and Semenov, D. and Shields, E. and Skorokhvatov, M. and Smirnov, O. and Sotnikov, A. and Stanford, C. and Suvorov, Y. and Tartaglia, R. and Tatarowicz, J. and Testera, G. and Tonazzo, A. and Unzhakov, E. and Vogelaar, R. B. and Wada, M. and Walker, S. and Wang, H. and Wang, Y. and Watson, A. and Westerdale, S. and Wojcik, M. and Wright, A. and Xiang, X. and Xu, J. and Yang, C. G. and Yoo, J. and Zavatarelli, S. and Zec, A. and Zhu, C. and Zuzel, G. (2016) Current status of the dark matter experiment DarkSide-50. Il nuovo cimento C, 39 (1). pp. 1-5. ISSN 1826-9885

ncc11140.pdf - Published Version

Download (185kB) | Preview
Official URL:


DarkSide-50 is a dark matter direct search experiment at LNGS, searching for rare nuclear recoils possibly induced by WIMPs. It has two nested vetoes and a dual phase liquid argon TPC as dark matter detector. Key features of this experiment are the use of underground argon as radio-pure target and of muon and neutron active vetoes to suppress the background. The first data-taking campaign was running from November 2013 to April 2015 with an atmospheric argon target and a reduced efficiency neutron veto due to internal contamination. However, an upper limit on the WIMP-nucleon cross section of 6.1×10−44 cm2 at 90% CL was obtained for a WIMP mass of 100 GeV/c2 and an exposure of (1422 ± 67) kg·d. At present DarkSide-50 started a 3 years run, intended to be background-free because the neutron veto was successfully recovered and underground argon replaced the atmospheric one. Additionally calibration campaigns for both the TPC and the neutron veto were completed. Thanks to the good performance of the background rejection, the results obtained so far suggest the scalability of DarkSide-50 to a ton-scale detector, which will play a key role into the dark matter search scenario.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 23 Jun 2020 11:56
Last Modified: 23 Jun 2020 11:56

Actions (login required)

View Item View Item