A Geant4-based Monte Carlo package named G4DS has been developed to simulate the response of DarkSide-50, an experiment operating since 2013 at LNGS, designed to detect WIMP interactions in liquid argon. In the process of WIMP searches, DarkSide-50 has achieved two fundamental milestones: the rejection of electron recoil background with a power of â¼107, using the pulse shape discrimination technique, and the measurement of the residual39Ar contamination in underground argon, â¼3 orders of magnitude lower with respect to atmospheric argon. These results rely on the accurate simulation of the detector response to the liquid argon scintillation, its ionization, and electron-ion recombination processes. This work provides a complete overview of the DarkSide Monte Carlo and of its performance, with a particular focus on PARIS, the custom-made liquid argon response model.
Simulation of argon response and light detection in the DarkSide-50 dual phase TPC / P. Agnes, I.F.M. Albuquerque, T. Alexander, A.K. Alton, D.M. Asner, H.O. Back, K. Biery, V. Bocci, G. Bonfini, W. Bonivento, M. Bossa, B. Bottino, F. Budano, S. Bussino, M. Cadeddu, M. Cadoni, F. Calaprice, N. Canci, A. Candela, M. Caravati, M. Cariello, M. Carlini, S. Catalanotti, V. Cataudella, P. Cavalcante, A. Chepurnov, C. Cicalo, A.G. Cocco, G. Covone, D. D'Angelo, M. D'Incecco, S. Davini, A. De Candia, S. De Cecco, M. De Deo, G. De Filippis, M. De Vincenzi, A.V. Derbin, G. De Rosa, A. Devoto, F. Di Eusanio, G. Di Pietro, C. Dionisi, E. Edkins, A. Empl, A. Fan, G. Fiorillo, K. Fomenko, D. Franco, F. Gabriele, C. Galbiati, S. Giagu, C. Giganti, G.K. Giovanetti, A.M. Goretti, F. Granato, M. Gromov, M. Guan, Y. Guardincerri, B.R. Hackett, K. Herner, D. Hughes, P. Humble, E.V. Hungerford, A. Ianni, I. James, T.N. Johnson, K. Keeter, C.L. Kendziora, G. Koh, D. Korablev, G. Korga, A. Kubankin, X. Li, M. Lissia, B. Loer, G. Longo, Y. Ma, A.A. Machado, I.N. Machulin, A. Mandarano, S.M. Mari, J. Maricic, C.J. Martoff, P.D. Meyers, R. Milincic, A. Monte, B.J. Mount, V.N. Muratova, P. Musico, J. Napolitano, A.N. Agasson, A. Oleinik, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, E. Pantic, K. Pelczar, N. Pelliccia, A. Pocar, S. Pordes, D.A. Pugachev, H. Qian, K. Randle, M. Razeti, A. Razeto, B. Reinhold, A.L. Renshaw, M. Rescigno, Q. Riffard, A. Romani, B. Rossi, N. Rossi, D. Sablone, W. Sands, S. Sanfilippo, C. Savarese, B. Schlitzer, E. Segreto, D.A. Semenov, P.N. Singh, M.D. Skorokhvatov, O. Smirnov, A. Sotnikov, C. Stanford, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, P. Trinchese, E.V. Unzhakov, M. Verducci, A. Vishneva, B. Vogelaar, M. Wada, S. Walker, H. Wang, Y. Wang, A.W. Watson, S. Westerdale, J. Wilhelmi, M.M. Wojcik, X. Xiang, X. Xiao, C. Yang, Z. Ye, C. Zhu, G. Zuzel. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 12:10(2017), pp. P10015.1-P10015.26. [10.1088/1748-0221/12/10/P10015]
Simulation of argon response and light detection in the DarkSide-50 dual phase TPC
D. D'Angelo;
2017
Abstract
A Geant4-based Monte Carlo package named G4DS has been developed to simulate the response of DarkSide-50, an experiment operating since 2013 at LNGS, designed to detect WIMP interactions in liquid argon. In the process of WIMP searches, DarkSide-50 has achieved two fundamental milestones: the rejection of electron recoil background with a power of â¼107, using the pulse shape discrimination technique, and the measurement of the residual39Ar contamination in underground argon, â¼3 orders of magnitude lower with respect to atmospheric argon. These results rely on the accurate simulation of the detector response to the liquid argon scintillation, its ionization, and electron-ion recombination processes. This work provides a complete overview of the DarkSide Monte Carlo and of its performance, with a particular focus on PARIS, the custom-made liquid argon response model.File | Dimensione | Formato | |
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