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1. Search for low mass dark matter in DarkSide-50: the bayesian network approach

Author: P. Agnes, I. F. M. Albuquerque, T. Alexander, A. K. Alton, M. Ave, H. O. Back, G. Batignani, K. Biery, V. Bocci, W. M. Bonivento, B. Bottino, S. Bussino, M. Cadeddu, M. Cadoni, F. Calaprice, A. Caminata, M. D. Campos, N. Canci, M. Caravati, N. Cargioli, M. Cariello, M. Carlini, V. Cataudella, P. Cavalcante, S. Cavuoti, S. Chashin, A. Chepurnov, C. Cicalò, G. Covone, D. D’Angelo, S. Davini, A. De Candia, S. De Cecco, G. De Filippis, G. De Rosa, A. V. Derbin, A. Devoto, M. D’Incecco, C. Dionisi, F. Dordei, M. Downing, D. D’Urso, M. Fairbairn, G. Fiorillo, D. Franco, F. Gabriele, C. Galbiati, C. Ghiano, C. Giganti, G. K. Giovanetti, A. M. Goretti, G. Grilli di Cortona, A. Grobov, M. Gromov, M. Guan, M. Gulino, B. R. Hackett, K. Herner, T. Hessel, B. Hosseini, F. Hubaut, E. V. Hungerford, An. Ianni, V. Ippolito, K. Keeter, C. L. Kendziora, M. Kimura, I. Kochanek, D. Korablev, G. Korga, A. Kubankin, M. Kuss, M. La Commara, M. Lai, X. Li, M. Lissia, G. Longo, O. Lychagina, I. N. Machulin, L. P. Mapelli, S. M. Mari, J. Maricic, A. Messina, R. Milincic, J. Monroe, M. Morrocchi, X. Mougeot, V. N. Muratova, P. Musico, A. O. Nozdrina, A. Oleinik, F. Ortica, L. Pagani, M. Pallavicini, L. Pandola, E. Pantic, E. Paoloni, K. Pelczar, N. Pelliccia, S. Piacentini, A. Pocar, D. M. Poehlmann, S. Pordes, S. S. Poudel, P. Pralavorio, D. D. Price, F. Ragusa, M. Razeti, A. Razeto, A. L. Renshaw, M. Rescigno, J. Rode, A. Romani, D. Sablone, O. Samoylov, E. Sandford, W. Sands, S. Sanfilippo, C. Savarese, B. Schlitzer, D. A. Semenov, A. Shchagin, A. Sheshukov, M. D. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Stracka, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, E. V. Unzhakov, A. Vishneva, R. B. Vogelaar, M. Wada, H. Wang, Y. Wang, S. Westerdale, M. M. Wojcik, X. Xiao, C. Yang, G. Zuzel, and DarkSide-50 Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract We present a novel approach for the search of dark matter in the DarkSide-50 experiment, relying on Bayesian Networks. This method incorporates the detector response model into the likelihood function, explicitly maintaining the connection with the quantity of interest. No assumptions about the linearity of the problem or the shape of the probability distribution functions are required, and there is no need to morph signal and background spectra as a function of nuisance parameters. By expressing the problem in terms of Bayesian Networks, we have developed an inference algorithm based on a Markov Chain Monte Carlo to calculate the posterior probability. A clever description of the detector response model in terms of parametric matrices allows us to study the impact of systematic variations of any parameter on the final results. Our approach not only provides the desired information on the parameter of interest, but also potential constraints on the response model. Our results are consistent with recent published analyses and further refine the parameters of the detector response model.
Published: 2023
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2. SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range

Author: C. E. Aalseth, S. Abdelhakim, P. Agnes, R. Ajaj, I. F. M. Albuquerque, T. Alexander, A. Alici, A. K. Alton, P. Amaudruz, F. Ameli, J. Anstey, P. Antonioli, M. Arba, S. Arcelli, R. Ardito, I. J. Arnquist, P. Arpaia, D. M. Asner, A. Asunskis, M. Ave, H. O. Back, V. Barbaryan, A. Barrado Olmedo, G. Batignani, M. G. Bisogni, V. Bocci, A. Bondar, G. Bonfini, W. Bonivento, E. Borisova, B. Bottino, M. G. Boulay, R. Bunker, S. Bussino, A. Buzulutskov, M. Cadeddu, M. Cadoni, A. Caminata, N. Canci, A. Candela, C. Cantini, M. Caravati, M. Cariello, F. Carnesecchi, A. Castellani, P. Castello, P. Cavalcante, D. Cavazza, S. Cavuoti, S. Cebrian, J. M. Cela Ruiz, B. Celano, R. Cereseto, S. Chashin, W. Cheng, A. Chepurnov, C. Cicalò, L. Cifarelli, M. Citterio, F. Coccetti, V. Cocco, M. Colocci, E. Conde Vilda, L. Consiglio, F. Cossio, G. Covone, P. Crivelli, I. D’Antone, M. D’Incecco, M. D. Da Rocha Rolo, O. Dadoun, M. Daniel, S. Davini, S. De Cecco, M. De Deo, A. De Falco, D. De Gruttola, G. De Guido, G. De Rosa, G. Dellacasa, P. Demontis, S. De Pasquale, A. V. Derbin, A. Devoto, F. Di Eusanio, L. Di Noto, G. Di Pietro, P. Di Stefano, C. Dionisi, G. Dolganov, F. Dordei, M. Downing, F. Edalatfar, A. Empl, M. Fernandez Diaz, C. Filip, G. Fiorillo, K. Fomenko, A. Franceschi, D. Franco, E. Frolov, G. E. Froudakis, N. Funicello, F. Gabriele, A. Gabrieli, C. Galbiati, M. Garbini, P. Garcia Abia, D. Gascón Fora, A. Gendotti, C. Ghiano, A. Ghisi, P. Giampa, R. A. Giampaolo, C. Giganti, M. A. Giorgi, G. K. Giovanetti, M. L. Gligan, O. Gorchakov, M. Grab, R. Graciani Diaz, M. Grassi, J. W. Grate, A. Grobov, M. Gromov, M. Guan, M. B. B. Guerra, M. Guerzoni, M. Gulino, R. K. Haaland, B. R. Hackett, A. Hallin, M. Haranczyk, B. Harrop, E. W. Hoppe, S. Horikawa, B. Hosseini, F. Hubaut, P. Humble, E. V. Hungerford, An. Ianni, A. Ilyasov, V. Ippolito, C. Jillings, K. Keeter, C. L. Kendziora, I. Kochanek, K. Kondo, G. Kopp, D. Korablev, G. Korga, A. Kubankin, R. Kugathasan, M. Kuss, M. La Commara, L. La Delfa, M. Lai, M. Lebois, B. Lehnert, N. Levashko, X. Li, Q. Liqiang, M. Lissia, G. U. Lodi, G. Longo, R. Lussana, L. Luzzi, A. A. Machado, I. N. Machulin, A. Mandarano, S. Manecki, L. Mapelli, A. Margotti, S. M. Mari, M. Mariani, J. Maricic, M. Marinelli, D. Marras, M. Martínez, A. D. Martinez Rojas, M. Mascia, J. Mason, A. Masoni, A. B. McDonald, A. Messina, T. Miletic, R. Milincic, A. Moggi, S. Moioli, J. Monroe, M. Morrocchi, T. Mroz, W. Mu, V. N. Muratova, S. Murphy, C. Muscas, P. Musico, R. Nania, T. Napolitano, A. Navrer Agasson, M. Nessi, I. Nikulin, V. Nosov, J. A. Nowak, A. Oleinik, V. Oleynikov, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, S. Palmas, L. Pandola, E. Pantic, E. Paoloni, F. Pazzona, S. Peeters, P. A. Pegoraro, K. Pelczar, L. A. Pellegrini, C. Pellegrino, N. Pelliccia, F. Perotti, V. Pesudo, E. Picciau, F. Pietropaolo, A. Pocar, T. R. Pollmann, D. Portaluppi, S. S. Poudel, P. Pralavorio, D. Price, B. Radics, F. Raffaelli, F. Ragusa, M. Razeti, C. Regenfus, A. L. Renshaw, S. Rescia, M. Rescigno, F. Retiere, L. P. Rignanese, C. Ripoli, A. Rivetti, J. Rode, A. Romani, L. Romero, N. Rossi, A. Rubbia, P. Sala, P. Salatino, O. Samoylov, E. Sánchez García, E. Sandford, S. Sanfilippo, M. Sant, D. Santone, R. Santorelli, C. Savarese, E. Scapparone, B. Schlitzer, G. Scioli, E. Segreto, A. Seifert, D. A. Semenov, A. Shchagin, A. Sheshukov, S. Siddhanta, M. Simeone, P. N. Singh, P. Skensved, M. D. Skorokhvatov, O. Smirnov, G. Sobrero, A. Sokolov, A. Sotnikov, R. Stainforth, A. Steri, S. Stracka, V. Strickland, G. B. Suffritti, S. Sulis, Y. Suvorov, A. M. Szelc, R. Tartaglia, G. Testera, T. Thorpe, A. Tonazzo, A. Tosi, M. Tuveri, E. V. Unzhakov, G. Usai, A. Vacca, E. Vázquez-Jáuregui, T. Viant, S. Viel, F. Villa, A. Vishneva, R. B. Vogelaar, J. Wahl, J. J. Walding, H. Wang, Y. Wang, S. Westerdale, R. J. Wheadon, R. Williams, J. Wilson, Ma. M. Wojcik, Ma. Wojcik, S. Wu, X. Xiao, C. Yang, Z. Ye, M. Zuffa, G. Zuzel, and The DarkSide-20k collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter searches to record (in the gas phase) the ionization signal induced by particle scattering in the liquid phase. The “standard” EL mechanism is considered to be due to noble gas excimer emission in the vacuum ultraviolet (VUV). In addition, there are two alternative mechanisms, producing light in the visible and near infrared (NIR) ranges. The first is due to bremsstrahlung of electrons scattered on neutral atoms (“neutral bremsstrahlung”, NBrS). The second, responsible for electron avalanche scintillation in the NIR at higher electric fields, is due to transitions between excited atomic states. In this work, we have for the first time demonstrated two alternative techniques of the optical readout of two-phase argon detectors, in the visible and NIR range, using a silicon photomultiplier matrix and electroluminescence due to either neutral bremsstrahlung or avalanche scintillation. The amplitude yield and position resolution were measured for these readout techniques, which allowed to assess the detection threshold for electron and nuclear recoils in two-phase argon detectors for dark matter searches. To the best of our knowledge, this is the first practical application of the NBrS effect in detection science.
Published: 2021
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3. First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso

Author: P. Agnes, T. Alexander, A. Alton, K. Arisaka, H.O. Back, B. Baldin, K. Biery, G. Bonfini, M. Bossa, A. Brigatti, J. Brodsky, F. Budano, L. Cadonati, F. Calaprice, N. Canci, A. Candela, H. Cao, M. Cariello, P. Cavalcante, A. Chavarria, A. Chepurnov, A.G. Cocco, L. Crippa, D. D'Angelo, M. D'Incecco, S. Davini, M. De Deo, A. Derbin, A. Devoto, F. Di Eusanio, G. Di Pietro, E. Edkins, A. Empl, A. Fan, G. Fiorillo, K. Fomenko, G. Forster, D. Franco, F. Gabriele, C. Galbiati, A. Goretti, L. Grandi, M. Gromov, M.Y. Guan, Y. Guardincerri, B. Hackett, K. Herner, E.V. Hungerford, Al. Ianni, An. Ianni, C. Jollet, K. Keeter, C. Kendziora, S. Kidner, V. Kobychev, G. Koh, D. Korablev, G. Korga, A. Kurlej, P.X. Li, B. Loer, P. Lombardi, C. Love, L. Ludhova, S. Luitz, Y.Q. Ma, I. Machulin, A. Mandarano, S. Mari, J. Maricic, L. Marini, C.J. Martoff, A. Meregaglia, E. Meroni, P.D. Meyers, R. Milincic, D. Montanari, A. Monte, M. Montuschi, M.E. Monzani, P. Mosteiro, B. Mount, V. Muratova, P. Musico, A. Nelson, S. Odrowski, M. Okounkova, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, E. Pantic, L. Papp, S. Parmeggiano, R. Parsells, K. Pelczar, N. Pelliccia, S. Perasso, A. Pocar, S. Pordes, D. Pugachev, H. Qian, K. Randle, G. Ranucci, A. Razeto, B. Reinhold, A. Renshaw, A. Romani, B. Rossi, N. Rossi, S.D. Rountree, D. Sablone, P. Saggese, R. Saldanha, W. Sands, S. Sangiorgio, E. Segreto, D. Semenov, E. Shields, M. Skorokhvatov, O. Smirnov, A. Sotnikov, C. Stanford, Y. Suvorov, R. Tartaglia, J. Tatarowicz, G. Testera, A. Tonazzo, E. Unzhakov, R.B. Vogelaar, M. Wada, S. Walker, H. Wang, Y. Wang, A. Watson, S. Westerdale, M. Wojcik, A. Wright, X. Xiang, J. Xu, C.G. Yang, J. Yoo, S. Zavatarelli, A. Zec, C. Zhu, and G. Zuzel
Subjects: Physics, QC1-999
Abstract: We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a (46.4±0.7) kg active mass, operated inside a 30 t organic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a (1422±67) kgd exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1×10−44 cm2 for a WIMP mass of 100 Gev/c2. Keywords: Dark matter, WIMP, Noble liquid detectors, Low-background detectors, Liquid scintillators
Published: 2015
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4. The DarkSide Multiton Detector for the Direct Dark Matter Search

Author: C. E. Aalseth, P. Agnes, A. Alton, K. Arisaka, D. M. Asner, H. O. Back, B. Baldin, K. Biery, G. Bonfini, M. Bossa, A. Brigatti, J. Brodsky, F. Budano, L. Cadonati, M. Cadoni, F. Calaprice, N. Canci, A. Candela, H. Cao, M. Cariello, P. Cavalcante, A. Chepurnov, A. G. Cocco, C. Condon, L. Crippa, D. D’Angelo, M. D’Incecco, S. Davini, M. De Deo, A. Derbin, A. Devoto, F. Di Eusanio, E. Edkins, A. Empl, A. Fan, G. Fiorillo, K. Fomenko, G. Forster, M. Foxe, D. Franco, F. Gabriele, C. Galbiati, A. Goretti, L. Grandi, M. Gromov, M. Y. Guan, Y. Guardincerri, B. Hackett, K. Herner, A. Hime, P. Humble, E. Hungerford, Al. Ianni, An. Ianni, D. E. Jaffe, C. Jollet, K. Keeter, C. Kendziora, S. Kidner, V. Kobychev, G. Koh, D. Korablev, G. Korga, A. Kurlej, P. X. Li, M. Lissia, P. Lombardi, L. Ludhova, S. Luitz, G. Lukyachenko, Y. Q. Ma, I. Machulin, A. Mandarano, S. M. Mari, J. Maricic, L. Marini, D. Markov, J. Martoff, A. Meregaglia, E. Meroni, P. D. Meyers, T. Miletic, R. Milincic, M. Montuschi, M. E. Monzani, P. Mosteiro, B. Mount, V. Muratova, P. Musico, D. Montanari, A. Nelson, S. Odrowski, A. Odrzywolek, J. L. Orrell, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, E. Pantic, S. Parmeggiano, B. Parsells, K. Pelczar, N. Pelliccia, S. Perasso, L. Perasso, A. Pocar, S. Pordes, D. Pugachev, H. Qian, K. Randle, G. Ranucci, A. Razeto, K. Recine, B. Reinhold, A. Renshaw, A. Romani, N. Rossi, B. Rossi, S. D. Rountree, D. Sablone, P. Saggese, R. Saldanha, W. Sands, S. Sangiorgio, E. Segreto, D. Semenov, E. Shields, M. Skorokhvatov, M. Smallcomb, O. Smirnov, A. Sotnikov, Y. Suvurov, R. Tartaglia, J. Tatarowicz, G. Testera, A. Tonazzo, E. Unzhakov, R. B. Vogelaar, M. Wada, S. E. Walker, H. Wang, Y. Wang, A. W. Watson, S. Westerdale, R. Williams, M. Wojcik, J. Xu, C. G. Yang, J. Yoo, B. Yu, S. Zavatarelli, W. L. Zhong, and G. Zuzel
Subjects: Physics, QC1-999
Abstract: Although the existence of dark matter is supported by many evidences, based on astrophysical measurements, its nature is still completely unknown. One major candidate is represented by weakly interacting massive particles (WIMPs), which could in principle be detected through their collisions with ordinary nuclei in a sensitive target, producing observable low-energy (
Published: 2015
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5. A study of events with photoelectric emission in the DarkSide-50 liquid argon Time Projection Chamber

Author: P. Agnes, I.F.M. Albuquerque, T. Alexander, A.K. Alton, M. Ave, H.O. Back, G. Batignani, K. Biery, V. Bocci, W.M. Bonivento, B. Bottino, S. Bussino, M. Cadeddu, M. Cadoni, F. Calaprice, A. Caminata, N. Canci, M. Caravati, N. Cargioli, M. Cariello, M. Carlini, M. Carpinelli, S. Catalanotti, V. Cataudella, P. Cavalcante, S. Cavuoti, A. Chepurnov, C. Cicalò, A.G. Cocco, G. Covone, D. D’Angelo, S. Davini, A. De Candia, S. De Cecco, G. De Filippis, G. De Rosa, A.V. Derbin, A. Devoto, M. D’Incecco, C. Dionisi, F. Dordei, M. Downing, D. D’Urso, G. Fiorillo, D. Franco, F. Gabriele, C. Galbiati, C. Ghiano, C. Giganti, G.K. Giovanetti, O. Gorchakov, A.M. Goretti, A. Grobov, M. Gromov, M. Guan, Y. Guardincerri, M. Gulino, B.R. Hackett, K. Herner, B. Hosseini, F. Hubaut, E.V. Hungerford, An. Ianni, V. Ippolito, K. Keeter, C.L. Kendziora, I. Kochanek, D. Korablev, G. Korga, A. Kubankin, M. Kuss, M. La Commara, M. Lai, X. Li, M. Lissia, G. Longo, I.N. Machulin, L.P. Mapelli, S.M. Mari, J. Maricic, C.J. Martoff, A. Messina, P.D. Meyers, R. Milincic, M. Morrocchi, V.N. Muratova, P. Musico, A. Navrer Agasson, A.O. Nozdrina, A. Oleinik, F. Ortica, L. Pagani, M. Pallavicini, L. Pandola, E. Pantic, E. Paoloni, K. Pelczar, N. Pelliccia, E. Picciau, A. Pocar, S. Pordes, S.S. Poudel, P. Pralavorio, F. Ragusa, M. Razeti, A. Razeto, A.L. Renshaw, M. Rescigno, J. Rode, A. Romani, D. Sablone, O. Samoylov, W. Sands, S. Sanfilippo, C. Savarese, B. Schlitzer, D.A. Semenov, A. Shchagin, A. Sheshukov, M.D. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Stracka, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, E.V. Unzhakov, A. Vishneva, R.B. Vogelaar, M. Wada, H. Wang, Y. Wang, S. Westerdale, Ma.M. Wojcik, X. Xiao, C. Yang, G. Zuzel, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DarkSide-50, Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Ave, M., Back, H. O., Batignani, G., Biery, K., Bocci, V., Bonivento, W. M., Bottino, B., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Canci, N., Caravati, M., Cargioli, N., Cariello, M., Carlini, M., Carpinelli, M., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Chepurnov, A., Cical??, C., Cocco, A. G., Covone, G., D???angelo, D., Davini, S., De Candia, A., De Cecco, S., De Filippis, G., De Rosa, G., Derbin, A. V., Devoto, A., D???incecco, M., Dionisi, C., Dordei, F., Downing, M., D???urso, D., Fiorillo, G., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giganti, C., Giovanetti, G. K., Gorchakov, O., Goretti, A. M., Grobov, A., Gromov, M., Guan, M., Guardincerri, Y., Gulino, M., Hackett, B. R., Herner, K., Hosseini, B., Hubaut, F., Hungerford, E. V., Ianni, An., Ippolito, V., Keeter, K., Kendziora, C. L., Kochanek, I., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lissia, M., Longo, G., Machulin, I. N., Mapelli, L. P., Mari, S. M., Maricic, J., Martoff, C. J., Messina, A., Meyers, P. D., Milincic, R., Morrocchi, M., Muratova, V. N., Musico, P., Navrer Agasson, A., Nozdrina, A. O., Oleinik, A., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pelczar, K., Pelliccia, N., Picciau, E., Pocar, A., Pordes, S., Poudel, S. S., Pralavorio, P., Ragusa, F., Razeti, M., Razeto, A., Renshaw, A. L., Rescigno, M., Rode, J., Romani, A., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Savarese, C., Schlitzer, B., Semenov, D. A., Shchagin, A., Sheshukov, A., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stracka, S., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Unzhakov, E. V., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wojcik, Ma. M., Xiao, X., Yang, C., Zuzel, G., Cicalò, C., D’Angelo, D., D’Incecco, M., D’Urso, D., Agasson, A. Navrer, Agnes, P, Albuquerque, I, Alexander, T, Alton, A, Ave, M, Back, H, Batignani, G, Biery, K, Bocci, V, Bonivento, W, Bottino, B, Bussino, S, Cadeddu, M, Cadoni, M, Calaprice, F, Caminata, A, Canci, N, Caravati, M, Cargioli, N, Cariello, M, Carlini, M, Carpinelli, M, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavuoti, S, Chepurnov, A, Cicalo, C, Cocco, A, Covone, G, D'Angelo, D, Davini, S, De Candia, A, De Cecco, S, De Filippis, G, De Rosa, G, Derbin, A, Devoto, A, D'Incecco, M, Dionisi, C, Dordei, F, Downing, M, D'Urso, D, Fiorillo, G, Franco, D, Gabriele, F, Galbiati, C, Ghiano, C, Giganti, C, Giovanetti, G, Gorchakov, O, Goretti, A, Grobov, A, Gromov, M, Guan, M, Guardincerri, Y, Gulino, M, Hackett, B, Herner, K, Hosseini, B, Hubaut, F, Hungerford, E, Ianni, A, Ippolito, V, Keeter, K, Kendziora, C, Kochanek, I, Korablev, D, Korga, G, Kubankin, A, Kuss, M, La Commara, M, Lai, M, Li, X, Lissia, M, Longo, G, Machulin, I, Mapelli, L, Mari, S, Maricic, J, Martoff, C, Messina, A, Meyers, P, Milincic, R, Morrocchi, M, Muratova, V, Musico, P, Agasson, A, Nozdrina, A, Oleinik, A, Ortica, F, Pagani, L, Pallavicini, M, Pandola, L, Pantic, E, Paoloni, E, Pelczar, K, Pelliccia, N, Picciau, E, Pocar, A, Pordes, S, Poudel, S, Pralavorio, P, Ragusa, F, Razeti, M, Razeto, A, Renshaw, A, Rescigno, M, Rode, J, Romani, A, Sablone, D, Samoylov, O, Sands, W, Sanfilippo, S, Savarese, C, Schlitzer, B, Semenov, D, Shchagin, A, Sheshukov, A, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Stracka, S, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Unzhakov, E, Vishneva, A, Vogelaar, R, Wada, M, Wang, H, Wang, Y, Westerdale, S, Wojcik, M, Xiao, X, Yang, C, and Zuzel, G
Subjects: dark matter: interaction, Physics - Instrumentation and Detectors, Dark matter Liquid argon Underground argon, Physics::Instrumentation and Detectors, photoelectron: emission, FOS: Physical sciences, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), dark matter: detector, electrode, time projection chamber: liquid argon, sensitivity, dark matter, liquid argon, High Energy Physics - Experiment, efficiency: quantum, High Energy Physics - Experiment (hep-ex), Underground argon, Dark matter, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], upgrade, Liquid argon, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], underground argon, photoelectron: yield
Abstract: Finding unequivocal evidence of dark matter interactions in a particle detector is a major objective of physics research. Liquid argon time projection chambers offer a path to probe Weakly Interacting Massive Particles scattering cross sections on nucleus down to the so-called neutrino floor, in a mass range from few GeV's to hundredths of TeV's. Based on the successful operation of the DarkSide-50 detector at LNGS, a new and more sensitive experiment, DarkSide-20k, has been designed and is now under construction. A thorough understanding of the DarkSide-50 detector response and, therefore, of all kind of observed events, is essential for an optimal design of the new experiment. In this paper, we report on a particular set of events, which were not used for dark matter searches. Namely, standard two-pulse scintillation-ionization signals accompanied by a small amplitude third pulse, originating from single or few electrons, in a time window of less than a maximum drift time. We compare our findings to those of a recent paper of the LUX Collaboration (D.S.Akerib et al. Phys.Rev.D 102, 092004). Indeed, both experiments observe events related to photoionization of the cathode. From the measured rate of these events, we estimate for the first time the quantum efficiency of the tetraphenyl butadiene deposited on the DarkSide-50 cathode at wavelengths around 128 nm, in liquid argon. Also, both experiments observe events likely related to photoionization of impurities in the liquid. The probability of photoelectron emission per unit length turns out to be one order of magnitude smaller in DarkSide-50 than in LUX. This result, together with the much larger measured electron lifetime, coherently hints toward a lower concentration of contaminants in DarkSide-50 than in LUX., 10 pages, 8 figures, 1 table
Published: 2021
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6. Design and construction of a new detector to measure ultra-low radioactive-isotope contamination of argon

Author: C.E. Aalseth, S. Abdelhakim, F. Acerbi, P. Agnes, R. Ajaj, I.F.M. Albuquerque, T. Alexander, A. Alici, A.K. Alton, P. Amaudruz, F. Ameli, J. Anstey, P. Antonioli, M. Arba, S. Arcelli, R. Ardito, I.J. Arnquist, P. Arpaia, D.M. Asner, A. Asunskis, M. Ave, H.O. Back, V. Barbaryan, A. Barrado Olmedo, G. Batignani, M.G. Bisogni, V. Bocci, A. Bondar, G. Bonfini, W. Bonivento, E. Borisova, B. Bottino, M.G. Boulay, R. Bunker, S. Bussino, A. Buzulutskov, M. Cadeddu, M. Cadoni, A. Caminata, N. Canci, A. Candela, C. Cantini, M. Caravati, M. Cariello, F. Carnesecchi, M. Carpinelli, A. Castellani, P. Castello, S. Catalanotti, V. Cataudella, P. Cavalcante, D. Cavazza, S. Cavuoti, S. Cebrian, J.M. Cela Ruiz, B. Celano, R. Cereseto, W. Cheng, A. Chepurnov, C. Cicalò, L. Cifarelli, M. Citterio, F. Coccetti, A.G. Cocco, V. Cocco, M. Colocci, L. Consiglio, F. Cossio, G. Covone, P. Crivelli, I. D'Antone, M. D'Incecco, D. D'Urso, M.D. Da Rocha Rolo, O. Dadoun, M. Daniel, S. Davini, A. De Candia, S. De Cecco, M. De Deo, A. De Falco, G. De Filippis, D. De Gruttola, G. De Guido, G. De Rosa, G. Dellacasa, P. Demontis, S. DePaquale, A.V. Derbin, A. Devoto, F. Di Eusanio, L. Di Noto, G. Di Pietro, P. Di Stefano, C. Dionisi, G. Dolganov, F. Dordei, M. Downing, F. Edalatfar, A. Empl, M. Fernandez Diaz, A. Ferri, C. Filip, G. Fiorillo, K. Fomenko, A. Franceschi, D. Franco, G.E. Froudakis, F. Gabriele, A. Gabrieli, C. Galbiati, M. Garbini, P. Garcia Abia, D. Gascón Fora, A. Gendotti, C. Ghiano, A. Ghisi, S. Giagu, P. Giampa, R.A. Giampaolo, C. Giganti, M.A. Giorgi, G.K. Giovanetti, M.L. Gligan, A. Gola, O. Gorchakov, M. Grab, R. Graciani Diaz, F. Granato, M. Grassi, J.W. Grate, G.Y. Grigoriev, A. Grobov, M. Gromov, M. Guan, M.B.B. Guerra, M. Guerzoni, M. Gulino, R.K. Haaland, B.R. Hackett, A. Hallin, B. Harrop, E.W. Hoppe, S. Horikawa, B. Hosseini, F. Hubaut, P. Humble, E.V. Hungerford, An. Ianni, A. Ilyasov, V. Ippolito, C. Jillings, K. Keeter, C.L. Kendziora, S. Kim, I. Kochanek, K. Kondo, G. Kopp, D. Korablev, G. Korga, A. Kubankin, R. Kugathasan, M. Kuss, M. Kuźniak, M. La Commara, L. La Delfa, M. Lai, S. Langrock, M. Lebois, B. Lehnert, N. Levashko, X. Li, Q. Liqiang, M. Lissia, G.U. Lodi, G. Longo, R. López Manzano, R. Lussana, L. Luzzi, A.A. Machado, I.N. Machulin, A. Mandarano, L. Mapelli, M. Marcante, A. Margotti, S.M. Mari, M. Mariani, J. Maricic, M. Marinelli, D. Marras, M. Martínez, J.J. Martínez Morales, A.D. Martinez Rojas, C.J. Martoff, M. Mascia, J. Mason, A. Masoni, A. Mazzi, A.B. McDonald, A. Messina, P.D. Meyers, T. Miletic, R. Milincic, A. Moggi, S. Moioli, J. Monroe, M. Morrocchi, T. Mroz, W. Mu, V.N. Muratova, S. Murphy, C. Muscas, P. Musico, R. Nania, T. Napolitano, A. Navrer Agasson, M. Nessi, I. Nikulin, A. Oleinik, V. Oleynikov, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, S. Palmas, L. Pandola, E. Pantic, E. Paoloni, G. Paternoster, F. Pazzona, S. Peeters, P.A. Pegoraro, K. Pelczar, L.A. Pellegrini, C. Pellegrino, N. Pelliccia, F. Perotti, V. Pesudo, E. Picciau, C. Piemonte, F. Pietropaolo, A. Pocar, T.R. Pollmann, D. Portaluppi, S.S. Poudel, P. Pralavorio, D. Price, B. Radics, F. Raffaelli, F. Ragusa, M. Razeti, A. Razeto, V. Regazzoni, C. Regenfus, A.L. Renshaw, S. Rescia, M. Rescigno, F. Retiere, L.P. Rignanese, A. Rivetti, A. Romani, L. Romero, N. Rossi, A. Rubbia, D. Sablone, P. Sala, P. Salatino, O. Samoylov, E. Sánchez García, S. Sanfilippo, M. Sant, D. Santone, R. Santorelli, C. Savarese, E. Scapparone, B. Schlitzer, G. Scioli, E. Segreto, A. Seifert, D.A. Semenov, A. Shchagin, A. Sheshukov, S. Siddhanta, M. Simeone, P.N. Singh, P. Skensved, M.D. Skorokhvatov, O. Smirnov, G. Sobrero, A. Sokolov, A. Sotnikov, R. Stainforth, A. Steri, S. Stracka, V. Strickland, G.B. Suffritti, S. Sulis, Y. Suvorov, A.M. Szelc, R. Tartaglia, G. Testera, T. Thorpe, A. Tonazzo, A. Tosi, M. Tuveri, E.V. Unzhakov, G. Usai, A. Vacca, E. Vázquez-Jáuregui, M. Verducci, T. Viant, S. Viel, F. Villa, A. Vishneva, R.B. Vogelaar, M. Wada, J. Wahl, J.J. Walding, H. Wang, Y. Wang, S. Westerdale, R.J. Wheadon, R. Williams, J. Wilson, Marcin Wojcik, Mariusz Wojcik, S. Wu, X. Xiao, C. Yang, Z. Ye, M. Zuffa, G. Zuzel, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Fondazione Bruno Kessler [Trento, Italy] (FBK), Trento Institute for Fundamental Physics and Applications, Italy, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut Fédératif de Recherche en Sciences et Ingénierie de la Santé (IFRESIS-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-IFR143, University of Surrey (UNIS), Aalseth, C, Abdelhakim, S, Acerbi, F, Agnes, P, Ajaj, R, Albuquerque, I, Alexander, T, Alici, A, Alton, A, Amaudruz, P, Ameli, F, Anstey, J, Antonioli, P, Arba, M, Arcelli, S, Ardito, R, Arnquist, I, Arpaia, P, Asner, D, Asunskis, A, Ave, M, Back, H, Barbaryan, V, Barrado Olmedo, A, Batignani, G, Bisogni, M, Bocci, V, Bondar, A, Bonfini, G, Bonivento, W, Borisova, E, Bottino, B, Boulay, M, Bunker, R, Bussino, S, Buzulutskov, A, Cadeddu, M, Cadoni, M, Caminata, A, Canci, N, Candela, A, Cantini, C, Caravati, M, Cariello, M, Carnesecchi, F, Carpinelli, M, Castellani, A, Castello, P, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavazza, D, Cavuoti, S, Cebrian, S, Cela Ruiz, J, Celano, B, Cereseto, R, Cheng, W, Chepurnov, A, Cicalo, C, Cifarelli, L, Citterio, M, Coccetti, F, Cocco, A, Cocco, V, Colocci, M, Consiglio, L, Cossio, F, Covone, G, Crivelli, P, D'Antone, I, D'Incecco, M, D'Urso, D, da Rocha Rolo, M, Dadoun, O, Daniel, M, Davini, S, de Candia, A, de Cecco, S, de Deo, M, de Falco, A, de Filippis, G, de Gruttola, D, de Guido, G, de Rosa, G, Dellacasa, G, Demontis, P, Depaquale, S, Derbin, A, Devoto, A, Di Eusanio, F, Di Noto, L, Di Pietro, G, Di Stefano, P, Dionisi, C, Dolganov, G, Dordei, F, Downing, M, Edalatfar, F, Empl, A, Fernandez Diaz, M, Ferri, A, Filip, C, Fiorillo, G, Fomenko, K, Franceschi, A, Franco, D, Froudakis, G, Gabriele, F, Gabrieli, A, Galbiati, C, Garbini, M, Garcia Abia, P, Gascon Fora, D, Gendotti, A, Ghiano, C, Ghisi, A, Giagu, S, Giampa, P, Giampaolo, R, Giganti, C, Giorgi, M, Giovanetti, G, Gligan, M, Gola, A, Gorchakov, O, Grab, M, Graciani Diaz, R, Granato, F, Grassi, M, Grate, J, Grigoriev, G, Grobov, A, Gromov, M, Guan, M, Guerra, M, Guerzoni, M, Gulino, M, Haaland, R, Hackett, B, Hallin, A, Harrop, B, Hoppe, E, Horikawa, S, Hosseini, B, Hubaut, F, Humble, P, Hungerford, E, Ianni, A, Ilyasov, A, Ippolito, V, Jillings, C, Keeter, K, Kendziora, C, Kim, S, Kochanek, I, Kondo, K, Kopp, G, Korablev, D, Korga, G, Kubankin, A, Kugathasan, R, Kuss, M, Kuzniak, M, la Commara, M, la Delfa, L, Lai, M, Langrock, S, Lebois, M, Lehnert, B, Levashko, N, Li, X, Liqiang, Q, Lissia, M, Lodi, G, Longo, G, Lopez Manzano, R, Lussana, R, Luzzi, L, Machado, A, Machulin, I, Mandarano, A, Mapelli, L, Marcante, M, Margotti, A, Mari, S, Mariani, M, Maricic, J, Marinelli, M, Marras, D, Martinez, M, Martinez Morales, J, Martinez Rojas, A, Martoff, C, Mascia, M, Mason, J, Masoni, A, Mazzi, A, Mcdonald, A, Messina, A, Meyers, P, Miletic, T, Milincic, R, Moggi, A, Moioli, S, Monroe, J, Morrocchi, M, Mroz, T, Mu, W, Muratova, V, Murphy, S, Muscas, C, Musico, P, Nania, R, Napolitano, T, Navrer Agasson, A, Nessi, M, Nikulin, I, Oleinik, A, Oleynikov, V, Orsini, M, Ortica, F, Pagani, L, Pallavicini, M, Palmas, S, Pandola, L, Pantic, E, Paoloni, E, Paternoster, G, Pazzona, F, Peeters, S, Pegoraro, P, Pelczar, K, Pellegrini, L, Pellegrino, C, Pelliccia, N, Perotti, F, Pesudo, V, Picciau, E, Piemonte, C, Pietropaolo, F, Pocar, A, Pollmann, T, Portaluppi, D, Poudel, S, Pralavorio, P, Price, D, Radics, B, Raffaelli, F, Ragusa, F, Razeti, M, Razeto, A, Regazzoni, V, Regenfus, C, Renshaw, A, Rescia, S, Rescigno, M, Retiere, F, Rignanese, L, Rivetti, A, Romani, A, Romero, L, Rossi, N, Rubbia, A, Sablone, D, Sala, P, Salatino, P, Samoylov, O, Sanchez Garcia, E, Sanfilippo, S, Sant, M, Santone, D, Santorelli, R, Savarese, C, Scapparone, E, Schlitzer, B, Scioli, G, Segreto, E, Seifert, A, Semenov, D, Shchagin, A, Sheshukov, A, Siddhanta, S, Simeone, M, Singh, P, Skensved, P, Skorokhvatov, M, Smirnov, O, Sobrero, G, Sokolov, A, Sotnikov, A, Stainforth, R, Steri, A, Stracka, S, Strickland, V, Suffritti, G, Sulis, S, Suvorov, Y, Szelc, A, Tartaglia, R, Testera, G, Thorpe, T, Tonazzo, A, Tosi, A, Tuveri, M, Unzhakov, E, Usai, G, Vacca, A, Vazquez-Jauregui, E, Verducci, M, Viant, T, Viel, S, Villa, F, Vishneva, A, Vogelaar, R, Wada, M, Wahl, J, Walding, J, Wang, H, Wang, Y, Westerdale, S, Wheadon, R, Williams, R, Wilson, J, Wojcik, M, Wu, S, Xiao, X, Yang, C, Ye, Z, Zuffa, M, Zuzel, G, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut Fédératif de Recherche en Sciences et Ingénierie de la Santé (IFRESIS), Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS), Aalseth, C. E., Abdelhakim, S., Acerbi, F., Agnes, P., Ajaj, R., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Ameli, F., Anstey, J., Antonioli, P., Arba, M., Arcelli, S., Ardito, R., Arnquist, I. J., Arpaia, P., Asner, D. M., Asunskis, A., Ave, M., Back, H. O., Barbaryan, V., Olmedo, A. Barrado, Batignani, G., Bisogni, M. G., Bocci, V., Bondar, A., Bonfini, G., Bonivento, W., Borisova, E., Bottino, B., Boulay, M. G., Bunker, R., Bussino, S., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Candela, A., Cantini, C., Caravati, M., Cariello, M., Carnesecchi, F., Carpinelli, M., Castellani, A., Castello, P., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavazza, D., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Celano, B., Cereseto, R., Cheng, W., Chepurnov, A., Cicalò, C., Cifarelli, L., Citterio, M., Coccetti, F., Cocco, A. G., Cocco, V., Colocci, M., Consiglio, L., Cossio, F., Covone, G., Crivelli, P., D'Antone, I., D'Incecco, M., D'Urso, D., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., Candia, A. De, Cecco, S. De, Deo, M. De, Falco, A. De, Filippis, G. De, Gruttola, D. De, Guido, G. De, Rosa, G. De, Dellacasa, G., Demontis, P., Depaquale, S., Derbin, A. V., Devoto, A., Eusanio, F. Di, Noto, L. Di, Pietro, G. Di, Stefano, P. Di, Dionisi, C., Dolganov, G., Dordei, F., Downing, M., Edalatfar, F., Empl, A., Diaz, M. Fernandez, Ferri, A., Filip, C., Fiorillo, G., Fomenko, K., Franceschi, A., Franco, D., Froudakis, G. E., Gabriele, F., Gabrieli, A., Galbiati, C., Garbini, M., Abia, P. Garcia, Fora, D. Gascón, Gendotti, A., Ghiano, C., Ghisi, A., Giagu, S., Giampa, P., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Gola, A., Gorchakov, O., Grab, M., Diaz, R. Graciani, Granato, F., Grassi, M., Grate, J. W., Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerra, M. B. B., Guerzoni, M., Gulino, M., Haaland, R. K., Hackett, B. R., Hallin, A., Harrop, B., Hoppe, E. W., Horikawa, S., Hosseini, B., Hubaut, F., Humble, P., Hungerford, E. V., Ianni, An., Ilyasov, A., Ippolito, V., Jillings, C., Keeter, K., Kendziora, C. L., Kim, S., Kochanek, I., Kondo, K., Kopp, G., Korablev, D., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., Commara, M. La, Delfa, L. La, Lai, M., Langrock, S., Lebois, M., Lehnert, B., Levashko, N., Li, X., Liqiang, Q., Lissia, M., Lodi, G. U., Longo, G., Manzano, R. López, Lussana, R., Luzzi, L., Machado, A. A., Machulin, I. N., Mandarano, A., Mapelli, L., Marcante, M., Margotti, A., Mari, S. M., Mariani, M., Maricic, J., Marinelli, M., Marras, D., Martínez, M., Morales, J. J. Martínez, Rojas, A. D. Martinez, Martoff, C. J., Mascia, M., Mason, J., Masoni, A., Mazzi, A., Mcdonald, A. B., Messina, A., Meyers, P. D., Miletic, T., Milincic, R., Moggi, A., Moioli, S., Monroe, J., Morrocchi, M., Mroz, T., Mu, W., Muratova, V. N., Murphy, S., Muscas, C., Musico, P., Nania, R., Napolitano, T., Agasson, A. Navrer, Nessi, M., Nikulin, I., Oleinik, A., Oleynikov, V., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pazzona, F., Peeters, S., Pegoraro, P. A., Pelczar, K., Pellegrini, L. A., Pellegrino, C., Pelliccia, N., Perotti, F., Pesudo, V., Picciau, E., Piemonte, C., Pietropaolo, F., Pocar, A., Pollmann, T. R., Portaluppi, D., Poudel, S. S., Pralavorio, P., Price, D., Radics, B., Raffaelli, F., Ragusa, F., Razeti, M., Razeto, A., Regazzoni, V., Regenfus, C., Renshaw, A. L., Rescia, S., Rescigno, M., Retiere, F., Rignanese, L. P., Rivetti, A., Romani, A., Romero, L., Rossi, N., Rubbia, A., Sablone, D., Sala, P., Salatino, P., Samoylov, O., García, E. Sánchez, Sanfilippo, S., Sant, M., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Segreto, E., Seifert, A., Semenov, D. A., Shchagin, A., Sheshukov, A., Siddhanta, S., Simeone, M., Singh, P. N., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Sobrero, G., Sokolov, A., Sotnikov, A., Stainforth, R., Steri, A., Stracka, S., Strickland, V., Suffritti, G. B., Sulis, S., Suvorov, Y., Szelc, A. M., Tartaglia, R., Testera, G., Thorpe, T., Tonazzo, A., Tosi, A., Tuveri, M., Unzhakov, E. V., Usai, G., Vacca, A., Vázquez-Jáuregui, E., Verducci, M., Viant, T., Viel, S., Villa, F., Vishneva, A., Vogelaar, R. B., Wada, M., Wahl, J., Walding, J. J., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, R., Wilson, J., Wojcik, Marcin, Wojcik, Mariusz, Wu, S., Xiao, X., Yang, C., Ye, Z., Zuffa, M., Zuzel, G., Aalseth C.E., Abdelhakim S., Acerbi F., Agnes P., Ajaj R., Albuquerque I.F.M., Alexander T., Alici A., Alton A.K., Amaudruz P., Ameli F., Anstey J., Antonioli P., Arba M., Arcelli S., Ardito R., Arnquist I.J., Arpaia P., Asner D.M., Asunskis A., Ave M., Back H.O., Barbaryan V., Barrado Olmedo A., Batignani G., Bisogni M.G., Bocci V., Bondar A., Bonfini G., Bonivento W., Borisova E., Bottino B., Boulay M.G., Bunker R., Bussino S., Buzulutskov A., Cadeddu M., Cadoni M., Caminata A., Canci N., Candela A., Cantini C., Caravati M., Cariello M., Carnesecchi F., Carpinelli M., Castellani A., Castello P., Catalanotti S., Cataudella V., Cavalcante P., Cavazza D., Cavuoti S., Cebrian S., Cela Ruiz J.M., Celano B., Cereseto R., Cheng W., Chepurnov A., Cicalo C., Cifarelli L., Citterio M., Coccetti F., Cocco A.G., Cocco V., Colocci M., Consiglio L., Cossio F., Covone G., Crivelli P., D'Antone I., D'Incecco M., D'Urso D., da Rocha Rolo M.D., Dadoun O., Daniel M., Davini S., de Candia A., de Cecco S., de Deo M., de Falco A., de Filippis G., de Gruttola D., de Guido G., de Rosa G., Dellacasa G., Demontis P., DePaquale S., Derbin A.V., Devoto A., Di Eusanio F., Di Noto L., Di Pietro G., Di Stefano P., Dionisi C., Dolganov G., Dordei F., Downing M., Edalatfar F., Empl A., Fernandez Diaz M., Ferri A., Filip C., Fiorillo G., Fomenko K., Franceschi A., Franco D., Froudakis G.E., Gabriele F., Gabrieli A., Galbiati C., Garbini M., Garcia Abia P., Gascon Fora D., Gendotti A., Ghiano C., Ghisi A., Giagu S., Giampa P., Giampaolo R.A., Giganti C., Giorgi M.A., Giovanetti G.K., Gligan M.L., Gola A., Gorchakov O., Grab M., Graciani Diaz R., Granato F., Grassi M., Grate J.W., Grigoriev G.Y., Grobov A., Gromov M., Guan M., Guerra M.B.B., Guerzoni M., Gulino M., Haaland R.K., Hackett B.R., Hallin A., Harrop B., Hoppe E.W., Horikawa S., Hosseini B., Hubaut F., Humble P., Hungerford E.V., Ianni An., Ilyasov A., Ippolito V., Jillings C., Keeter K., Kendziora C.L., Kim S., Kochanek I., Kondo K., Kopp G., Korablev D., Korga G., Kubankin A., Kugathasan R., Kuss M., Kuzniak M., la Commara M., la Delfa L., Lai M., Langrock S., Lebois M., Lehnert B., Levashko N., Li X., Liqiang Q., Lissia M., Lodi G.U., Longo G., Lopez Manzano R., Lussana R., Luzzi L., Machado A.A., Machulin I.N., Mandarano A., Mapelli L., Marcante M., Margotti A., Mari S.M., Mariani M., Maricic J., Marinelli M., Marras D., Martinez M., Martinez Morales J.J., Martinez Rojas A.D., Martoff C.J., Mascia M., Mason J., Masoni A., Mazzi A., McDonald A.B., Messina A., Meyers P.D., Miletic T., Milincic R., Moggi A., Moioli S., Monroe J., Morrocchi M., Mroz T., Mu W., Muratova V.N., Murphy S., Muscas C., Musico P., Nania R., Napolitano T., Navrer Agasson A., Nessi M., Nikulin I., Oleinik A., Oleynikov V., Orsini M., Ortica F., Pagani L., Pallavicini M., Palmas S., Pandola L., Pantic E., Paoloni E., Paternoster G., Pazzona F., Peeters S., Pegoraro P.A., Pelczar K., Pellegrini L.A., Pellegrino C., Pelliccia N., Perotti F., Pesudo V., Picciau E., Piemonte C., Pietropaolo F., Pocar A., Pollmann T.R., Portaluppi D., Poudel S.S., Pralavorio P., Price D., Radics B., Raffaelli F., Ragusa F., Razeti M., Razeto A., Regazzoni V., Regenfus C., Renshaw A.L., Rescia S., Rescigno M., Retiere F., Rignanese L.P., Rivetti A., Romani A., Romero L., Rossi N., Rubbia A., Sablone D., Sala P., Salatino P., Samoylov O., Sanchez Garcia E., Sanfilippo S., Sant M., Santone D., Santorelli R., Savarese C., Scapparone E., Schlitzer B., Scioli G., Segreto E., Seifert A., Semenov D.A., Shchagin A., Sheshukov A., Siddhanta S., Simeone M., Singh P.N., Skensved P., Skorokhvatov M.D., Smirnov O., Sobrero G., Sokolov A., Sotnikov A., Stainforth R., Steri A., Stracka S., Strickland V., Suffritti G.B., Sulis S., Suvorov Y., Szelc A.M., Tartaglia R., Testera G., Thorpe T., Tonazzo A., Tosi A., Tuveri M., Unzhakov E.V., Usai G., Vacca A., Vazquez-Jauregui E., Verducci M., Viant T., Viel S., Villa F., Vishneva A., Vogelaar R.B., Wada M., Wahl J., Walding J.J., Wang H., Wang Y., Westerdale S., Wheadon R.J., Williams R., Wilson J., Wojcik M., Wu S., Xiao X., Yang C., Ye Z., Zuffa M., Zuzel G., Barrado Olmedo, A., Cela Ruiz, J. M., Da Rocha Rolo, M. D., De Candia, A., De Cecco, S., De Deo, M., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Di Eusanio, F., Di Noto, L., Di Pietro, G., Di Stefano, P., Fernandez Diaz, M., Garcia Abia, P., Gascón Fora, D., Graciani Diaz, R., La Commara, M., La Delfa, L., López Manzano, R., Martínez Morales, J. J., Martinez Rojas, A. D., Navrer Agasson, A., Sánchez García, E., and Szelcc, A. M.
Subjects: Physics - Instrumentation and Detectors, gas and liquid scintillators), axions, Physics::Instrumentation and Detectors, Noble liquid detectors (scintillation, ionization, double-phase), 01 natural sciences, 030218 nuclear medicine & medical imaging, Dark Matter detectors (WIMPs, axions, etc.), 0302 clinical medicine, Recoil, Noble liquid detectors (scintillation, ionization, double-phase), Dark Matter detectors (WIMPs, axions, etc.), Cryogenic detectors, Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators), Noble liquid detectors (scintillation, Cryogenic detectors, Scintillation and light emission processes (solid, gas, liquid scintillators), Scintillators, etc.), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Detectors and Experimental Techniques, physics.ins-det, Instrumentation, Mathematical Physics, Physics, Scintillation and light emission processes (solid, Time projection chamber, Detector, Instrumentation and Detectors (physics.ins-det), double-phase), Dark Matter detectors(WIMPs, axions, etc.), Scintillators, scintillation and light emission processes(solid, gas and liquid scintillators), scintillation and light emission processes(solid, Weakly interacting massive particles, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics and Astronomy, Dark matter, Cryogenic detector, chemistry.chemical_element, FOS: Physical sciences, Nuclear physics, 03 medical and health sciences, gas, ionization, 0103 physical sciences, liquid scintillators), Instrumentation and Methods for Astrophysics (astro-ph.IM), Dark Matter detectors (WIMPs, Argon, 010308 nuclear & particles physics, Canfranc Underground Laboratory, Scintillator, Dark Matter detectors(WIMPs, chemistry, astro-ph.IM, ArDM
Abstract: Large liquid argon detectors offer one of the best avenues for the detection of galactic weakly interacting massive particles (WIMPs) via their scattering on atomic nuclei. The liquid argon target allows exquisite discrimination between nuclear and electron recoil signals via pulse-shape discrimination of the scintillation signals. Atmospheric argon (AAr), however, has a naturally occurring radioactive isotope, $^{39}$Ar, a $\beta$ emitter of cosmogenic origin. For large detectors, the atmospheric $^{39}$Ar activity poses pile-up concerns. The use of argon extracted from underground wells, deprived of $^{39}$Ar, is key to the physics potential of these experiments. The DarkSide-20k dark matter search experiment will operate a dual-phase time projection chamber with 50 tonnes of radio-pure underground argon (UAr), that was shown to be depleted of $^{39}$Ar with respect to AAr by a factor larger than 1400. Assessing the $^{39}$Ar content of the UAr during extraction is crucial for the success of DarkSide-20k, as well as for future experiments of the Global Argon Dark Matter Collaboration (GADMC). This will be carried out by the DArT in ArDM experiment, a small chamber made with extremely radio-pure materials that will be placed at the centre of the ArDM detector, in the Canfranc Underground Laboratory (LSC) in Spain. The ArDM LAr volume acts as an active veto for background radioactivity, mostly $\gamma$-rays from the ArDM detector materials and the surrounding rock. This article describes the DArT in ArDM project, including the chamber design and construction, and reviews the background required to achieve the expected performance of the detector., Comment: 13 pages, 8 figures. Corresponding author: E. S\'anchez Garc\'ia
Published: 2020
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7. Status of the MAJORANA DEMONSTRATOR

Author: D. Byram, Jonathan D. Leon, M. Shirchenko, T. Gilliss, John L. Orrell, Vladimir Yumatov, R. D. Martin, Alan Poon, M. P. Green, Anne-Marie Suriano, J. A. Detwiler, W. Xu, Stanley M. Howard, H. Ejiri, J. F. Wilkerson, C.-H. Yu, C.M. O'Shaughnessy, B. R. White, R. G. H. Robertson, Yu. Efremenko, M. Buuck, Keith Rielage, E. Romero-Romero, S. I. Konovalov, J. E. Trimble, J. Rager, A. Galindo-Uribarri, I. Zhitnikov, Matthew Busch, C. Cuesta, F. T. Avignone, Kai Vetter, S. Vasilyev, Yuen-Dat Chan, Brian D. LaFerriere, C. D. Christofferson, R. L. Varner, J. MacMullin, Reyco Henning, N. Abgrall, D. J. Tedeschi, I. S. Guinn, B. Shanks, B. R. Jasinski, Eric W. Hoppe, J. Gruszko, A. S. Caldwell, V. E. Guiseppe, K. Vorren, C. Wiseman, M. A. Howe, F. E. Bertrand, J. Goett, A. W. Bradley, S. R. Elliott, D. C. Radford, K. Keeter, E. Yakushev, A. S. Barabash, V.B. Brudanin, Richard T. Kouzes, C. X. Balderrot-Barrera, G. K. Giovanetti, S. J. Meijer, Susanne Mertens, M. F. Kidd, I. J. Arnquist, and N. Snyder
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, business.industry, Modular design, 01 natural sciences, Semiconductor detector, Nuclear physics, MAJORANA, 0103 physical sciences, Detector array, 010306 general physics, business
Abstract: The MAJORANA Collaboration is constructing the MAJORANA DEMONSTRATOR, an ultralow background, 40-kg modular high purity Ge (HPGe) detector array to search for neutrinoless double-beta decay (0νββ-decay) in 76Ge. The goal of the experiment is to demonstrate a background rate at or below 3 counts/(t-y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for 76Ge 0νββ-decay. In this paper, the status of the MAJORANA DEMONSTRATOR, including its design and measurements of properties of the HPGe crystals is presented.
Published: 2017
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8. 003 Characteristics of Men Who Use Direct to Consumer Men’s Health Telemedicine Services in an Online Population

Author: J. Wren, Richard J. Fantus, Joshua A. Halpern, M. Hudnall, M. K. Keeter, Robert E. Brannigan, and Nelson E. Bennett
Subjects: Infertility, education.field_of_study, medicine.medical_specialty, Telemedicine, business.industry, Urology, Endocrinology, Diabetes and Metabolism, Population, Testosterone (patch), medicine.disease, Odds, Psychiatry and Mental health, Survey methodology, Endocrinology, Reproductive Medicine, Sexual medicine, Family medicine, Health care, Medicine, education, business
Abstract: Introduction: For the technologically adept man, the use of online direct-to-consumer (DTC) men’s health services such as Hims® and Roman® offer convenience, accessibility, and discretion when pursuing care for sensitive issues such as erectile dysfunction Characteristics of the users of these telemedicine services have not been well described We surveyed a population of adult men to determine their perception of infertility and semen analysis, as well as their use of online men’s health services Objective: To determine the familiarity with and use of DTC men’s health services among adult men Additionally, we sought to evaluate perceptions regarding infertility, low testosterone, and semen analysis testing among these men using an online survey Methods: The survey was conducted between November 2019 to January 2020 through ResearchMatch com, a voluntary online registry of individuals interested in participating in clinical research Males age 18 and over were invited to complete an online survey with 5-point Likert items assessing concern for low testosterone, infertility, and likelihood of conducting a semen analysis test without a physician recommendation Participants were also asked about their familiarity with and use of DTC health services such as Hims®, Roman®, and 23andMe® Responses were dichotomized and logistic regression estimated the association between participant characteristics and outcomes of interest Results: Of 1,276 participants who completed the survey, 794 (62 2%) expressed some degree of concern about having low testosterone, and 277 (21 7%) were concerned about infertility Of all participants, 48 5% reported familiarity with Hims®, Roman® or similar online men’s health services but only 2 9% (n=37) reported actual use More than 85% of DTC users were under age 65 Factors associated with use of DTC men’s health telemedicine services included age < 60, (age 18-39: OR 4 20, 95% CI 1 14 to 15 56, p=0 032;age 40-59: OR 3 94, 95% CI 1 22 to 12 75, p =0 022), income between $50K and $100K ($50K to $75K: OR 4 71, 95% CI 1 01 to 21 94, p=0 048;$75K to $100K: OR 6 41, 95% CI 1 31 to 31 45, p=0 022), and concern about low testosterone (OR 3 16, 95% CI 1 15 to 8 69, p=0 026) Number of recent doctor visits, use of testosterone and other supplements, prior use of 23andMe®, and concern about infertility were not associated with increased odds of use Conclusions: Younger generation men in the middle-income bracket had higher odds of using online DTC men’s health telemedicine services than older or wealthier men Level of engagement with the traditional health care system as determined by recent doctor visits did not predict use of DTC men’s health services As telemedicine use accelerates during the COVID-19 pandemic, it is increasingly important for physicians to understand the characteristics of patients who access DTC websites, delineate the health concerns that can and cannot be comprehensively addressed through this modality, and recognize the long-term consequences for the landscape of sexual medicine care in the United States Disclosure: Work supported by industry: no
Published: 2021
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9. DarkSide-20k: A 20 tonne two-phase LAr TPC for direct dark matter detection at LNGS

Author: Craig E. Aalseth, P. F. Loverre, T. Viant, Fabrizio Giulio Luca Pilo, A. Vishneva, R. Perruzza, E. Segreto, P. Garcia Abia, T. N. Johnson, Manuel Colocci, Lelio Luzzi, R. Tartaglia, M. Bossa, S. Murphy, I. N. Machulin, M. Razeti, V. Pavletcov, M. Kuźniak, H. O. Back, N. Canci, P. D. Meyers, A.V. Shchagin, R. Cereseto, P. Skensved, Jocelyn Monroe, A. Buzulutskov, Davide Portaluppi, Giovanni Covone, G. Dellacasa, Vittorio Cataudella, P. Giampa, B. Rossi, D. Korablev, V. Pesudo, André Rubbia, Marco Pallavicini, Ivone F. M. Albuquerque, K. Fomenko, G. Fiorillo, G. Testera, K. Pelczar, A. Dolgov, F. Retiere, L. Shekhtman, George E. Froudakis, Mariano Cadoni, A. Moggi, L. Romero, M. La Commara, Aldo Ghisi, P. Cavalcante, S. Corgiolu, A. Oleinik, E. V. Hungerford, Cristiano Galbiati, Piero Salatino, D. D'Urso, M. Wada, Rosario Nania, M. Rescigno, Yuting Wang, T. Pollmann, Alan Watson, N. Rossi, C. J. Jillings, F. Gabriele, A. Empl, M. G. Boulay, S. Sanfilippo, A. Mandarano, S. J. M. Peeters, L. Pagani, M. D'Incecco, Alessandro Ferri, S. Westerdale, K. Keeter, R. Bunker, Claudio Piemonte, Andrea Alici, Federica Villa, D. Sablone, G. Di Pietro, Gilda Scioli, Allen Seifert, Marisa Gulino, P. Trinchese, G. Bonfini, S. Catalanotti, F. Granato, D. A. Semenov, M. Carlini, Luciano Pandola, A. Sotnikov, Min-Xin Guan, Alberto Tosi, H. Qian, M. D. Skorokhvatov, S. Bettarini, A. de Candia, An. Ianni, A. Sheshukov, W. Bonivento, V. Regazzoni, E. Pantic, F. Speziale, M. Mayer, Annalisa Vacca, X. Xiang, P. N. Singh, M. Gromov, S. Wu, A. G. Cocco, V. N. Muratova, B. Bottino, Andrea Gabrieli, Mario Giorgi, E. Sanchez Garcia, Jay W. Grate, Y. Suvorov, R. Milincic, G. Batignani, E. Bertoldo, M. Orsini, B. Radics, Giuseppe Longo, C. L. Kendziora, S. Bussino, M. Ave, V. Bocci, B. Reinhold, S. Dussoni, Eugenio Scapparone, A. L. Hallin, Richard M. Williams, S. Horikawa, B. Hosseini, S. Kim, D. Hughes, I. D'Antone, A. M. Goretti, A. S. Chepurnov, C. Giganti, I. J. Arnquist, Antonino Zichichi, A. Castellani, M. Fernandez Diaz, A. L. Renshaw, C. Filip, Silvia Arcelli, Fabio Acerbi, D. M. Asner, Monica Verducci, Marco Sant, Giovanni Paternoster, C. Dionisi, M. Da Rocha Rolo, S. Davini, C. J. Martoff, M. Marcante, M. Cadeddu, Paul H. Humble, E. Paoloni, Z. Ye, C. Cicalo, W. Mu, Laura A. Pellegrini, F. Pazzona, A. S. Kubankin, C. Savarese, G. Sobrero, Stefano Giagu, M. Caravati, A. A. Machado, Chung-Yao Yang, N. N. Nurakhov, G. Koh, Paolo Crivelli, M. Carpinelli, S. De Cecco, Fausto Ortica, G. De Rosa, I. Dormia, Federico Perotti, A. Yllera de Llano, Franco Zappa, J. Wahl, M. Guerzoni, Andrea Messina, Pietro Antonioli, Rudi Lussana, C. Cantini, Pierfranco Demontis, B. Vogelaar, O. Gorchakov, Angelo Rivetti, Simonetta Palmas, Hui Wang, Ben Loer, A. Devoto, J. Walding, Paolo Musico, Alberto Gola, G. Gibertoni, Thomas Alexander, I. Nikulin, D. A. Pugachev, R. Stainforth, A. Monte, A. V. Derbin, Andrey Sokolov, G. Zuzel, J. Maricic, A. B. McDonald, A. Zullo, L. Cifarelli, R. Santorelli, Giuseppe Baldovino Suffritti, Yanhui Ma, B. Schlitzer, Marino Simeone, Stefania Moioli, D. Franco, Michele Mascia, Mario Mariani, Raffaele Ardito, M. K. Daniel, C. Stanford, Mauro Citterio, A.E. Bondar, Caoxiang Zhu, O. Samoylov, Francesco Ragusa, R. K. Haaland, A. Gendotti, M. De Deo, G. Y. Grigoriev, A. Caminata, A. K. Alton, G. U. Lodi, G. Korga, Q. Riffard, M. Zullo, Xiujiang Li, Marco Grassi, M. Della Valle, C. Regenfus, Eric W. Hoppe, E. Vázquez-Jáuregui, L. Mapelli, Stefano Maria Mari, A. Tonazzo, A. Barrado Olmedo, V. Oleynikov, F. Di Eusanio, Maria Giuseppina Bisogni, B. J. Mount, Matteo Morrocchi, M. Kuss, E. Shemyakina, A. Candela, Aldo Romani, P. Agnes, G. K. Giovanetti, B. Lehnert, A. Razeto, Stefano Cavuoti, A. Navrer Agasson, V. Nosov, M. Cariello, N. Pelliccia, Simone Rizzardini, G. De Guido, M. Lissia, G. De Filippis, Marcin Wójcik, Anselmo Margotti, Xiang Xiao, Marcelo Braga Bueno Guerra, W. Sands, M. L. Gligan, A. O. Nozdrina, F. Raffaelli, G. Zappalà, A. Pocar, O. Smirnov, E. V. Unzhakov, B. Harrop, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (INFN, Sezione di Bologna), Istituto Nazionale di Fisica Nucleare (INFN), LVMH Recherche, LVMH Moët Hennessy Louis Vuitton, Dipartimento di Scienze Fisiche [Naples], Università degli studi di Napoli Federico II, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Meccanica, Matematica e Management Politecnico di Bari, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Department of Electrical Engineering, University of Pavia, Laboratorio de Instrumentaçao, Engenharia Biomédica e Fisica da Radiaçao (LIBPhys-UNL), Departamento de Fìsica [Lisboa] (DF), Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA), Paul Scherrer Institute (PSI), Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (INFN, Sezione di Napoli), Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Laboratoire de Biochimie et Biologie Moléculaire Végétales - UMR6134, Université Pascal Paoli (UPP)-Centre National de la Recherche Scientifique (CNRS), Department of Geological Sciences, University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare, Sezione di Torino (INFN, Sezione di Torino), Migration et différenciation des cellules souches hématopoiétiques = Migration and differentiation of hematopoietic stem cells (LBD-E06), Institut National de la Santé et de la Recherche Médicale (INSERM)-Laboratoire de Biologie du Développement (LBD), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Biologie Paris Seine (IBPS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Biologie Paris Seine (IBPS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Department of Microsystems Engineering [Freiburg] (IMTEK), University of Freiburg [Freiburg], Pondicherry Univrsity, Department of Earth Sciences, School of Physical, Chemical & Applied Sciences, Rhodes University, Grahamstown, inconnu, Inconnu, Key Lab of Computer System and Architecture, Institute of Computing Technology [Beijing] (ICT), Chinese Academy of Sciences [Beijing] (CAS), Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Macquarie University, Laboratoire Géophysique et évaluation non destructive (IFSTTAR/GERS/GeoEND), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-PRES Université Nantes Angers Le Mans (UNAM), Aalseth, C. E., Acerbi, F., Agnes, P., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Antonioli, P., Arcelli, S., Ardito, R., Arnquist, I. J., Asner, D. M., Ave, M., Back, H. O., Barrado Olmedo, A. I., Batignani, G., Bertoldo, E., Bettarini, S., Bisogni, M. G., Bocci, V., Bondar, A., Bonfini, G., Bonivento, W., Bossa, M., Bottino, B., Boulay, M., Bunker, R., Bussino, S., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Candela, A., Cantini, C., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cereseto, R., Chepurnov, A., Cicalò, C., Cifarelli, L., Citterio, M., Cocco, A. G., Colocci, M., Corgiolu, S., Covone, G., Crivelli, P., D’Antone, I., D’Incecco, M., D’Urso, D., Da Rocha Rolo, M. D., Daniel, M., Davini, S., de Candia, A., De Cecco, S., De Deo, M., De Filippis, G., De Guido, G., De Rosa, G., Dellacasa, G., Della Valle, M., Demontis, P., Derbin, A., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Dolgov, A., Dormia, I., Dussoni, S., Empl, A., Fernandez Diaz, M., Ferri, A., Filip, C., Fiorillo, G., Fomenko, K., Franco, D., Froudakis, G. E., Gabriele, F., Gabrieli, A., Galbiati, C., Garcia Abia, P., Gendotti, A., Ghisi, A., Giagu, S., Giampa, P., Gibertoni, G., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Gola, A., Gorchakov, O., Goretti, A. M., Granato, F., Grassi, M., Grate, J. W., Grigoriev, G. Y., Gromov, M., Guan, M., Guerra, M. B. B., Guerzoni, M., Gulino, M., Haaland, R. K., Hallin, A., Harrop, B., Hoppe, E. W., Horikawa, S., Hosseini, B., Hughes, D., Humble, P., Hungerford, E. V., Ianni, An., Jillings, C., Johnson, T. N., Keeter, K., Kendziora, C. L., Kim, S., Koh, G., Korablev, D., Korga, G., Kubankin, A., Kuss, M., Kuźniak, M., La Commara, M., Lehnert, B., Li, X., Lissia, M., Lodi, G. U., Loer, B., Longo, G., Loverre, P., Lussana, R., Luzzi, L., Ma, Y., Machado, A. A., Machulin, I. N., Mandarano, A., Mapelli, L., Marcante, M., Margotti, A., Mari, S. M., Mariani, M., Maricic, J., Martoff, C. J., Mascia, M., Mayer, M., Mcdonald, A. B., Messina, A., Meyers, P. D., Milincic, R., Moggi, A., Moioli, S., Monroe, J., Monte, A., Morrocchi, M., Mount, B. J., Mu, W., Muratova, V. N., Murphy, S., Musico, P., Nania, R., Navrer Agasson, A., Nikulin, I., Nosov, V., Nozdrina, A. O., Nurakhov, N. N., Oleinik, A., Oleynikov, V., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pavletcov, V., Pazzona, F., Peeters, S., Pelczar, K., Pellegrini, L. A., Pelliccia, N., Perotti, F., Perruzza, R., Pesudo, V., Piemonte, C., Pilo, F., Pocar, A., Pollmann, T., Portaluppi, D., Pugachev, D. A., Qian, H., Radics, B., Raffaelli, F., Ragusa, F., Razeti, M., Razeto, A., Regazzoni, V., Regenfus, C., Reinhold, B., Renshaw, A. L., Rescigno, M., Retière, F., Riffard, Q., Rivetti, A., Rizzardini, S., Romani, A., Romero, L., Rossi, B., Rossi, N., Rubbia, A., Sablone, D., Salatino, P., Samoylov, O., Sánchez García, E., Sands, W., Sanfilippo, S., Sant, M., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Segreto, E., Seifert, A., Semenov, D. A., Shchagin, A., Shekhtman, L., Shemyakina, E., Sheshukov, A., Simeone, M., Singh, P. N., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Sobrero, G., Sokolov, A., Sotnikov, A., Speziale, F., Stainforth, R., Stanford, C., Suffritti, G. B., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Tosi, A., Trinchese, P., Unzhakov, E. V., Vacca, A., Vázquez-Jáuregui, E., Verducci, M., Viant, T., Villa, F., Vishneva, A., Vogelaar, B., Wada, M., Wahl, J., Walding, J., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Williams, R., Wojcik, M. M., Wu, S., Xiang, X., Xiao, X., Yang, C., Ye, Z., Yllera de Llano, A., Zappa, F., Zappalà, G., Zhu, C., Zichichi, A., Zullo, M., Zullo, A., Zuzel, G., National Institute for Nuclear Physics (INFN), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Unité de Catalyse et de Chimie du Solide - Site Artois (UCCS Artois), Université d'Artois (UA)-Université de Lille, Sciences et Technologies-Ecole Centrale de Lille-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Faculdade de Ciências e Tecnologia (FCT NOVA), Universidade Nova de Lisboa (NOVA)-Universidade Nova de Lisboa (NOVA)-Faculdade de Ciências e Tecnologia (FCT NOVA), Universidade Nova de Lisboa (NOVA)-Universidade Nova de Lisboa (NOVA), Université de Montpellier (UM)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Université de Corse, CNRS UMR6134 SPE, Laboratoire de Biochimie et Biologie Moléculaire Végétales, École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université de Cergy Pontoise (UCP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Biologie Paris Seine (IBPS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Department of Microsystems Engineering - IMTEK, Rhodes University, Aalseth, C, Acerbi, F, Agnes, P, Albuquerque, I, Alexander, T, Alici, A, Alton, A, Antonioli, P, Arcelli, S, Ardito, R, Arnquist, I, Asner, D, Ave, M, Back, H, Barrado Olmedo, A, Batignani, G, Bertoldo, E, Bettarini, S, Bisogni, M, Bocci, V, Bondar, A, Bonfini, G, Bonivento, W, Bossa, M, Bottino, B, Boulay, M, Bunker, R, Bussino, S, Buzulutskov, A, Cadeddu, M, Cadoni, M, Caminata, A, Canci, N, Candela, A, Cantini, C, Caravati, M, Cariello, M, Carlini, M, Carpinelli, M, Castellani, A, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavuoti, S, Cereseto, R, Chepurnov, A, Cicalo', C, Cifarelli, L, Citterio, M, Cocco, A, Colocci, M, Corgiolu, S, Covone, G, Crivelli, P, D’Antone, I, D’Incecco, M, D’Urso, D, Da Rocha Rolo, M, Daniel, M, Davini, S, de Candia, A, De Cecco, S, De Deo, M, De Filippis, G, De Guido, G, De Rosa, G, Dellacasa, G, Della Valle, M, Demontis, P, Derbin, A, Devoto, A, Di Eusanio, F, Di Pietro, G, Dionisi, C, Dolgov, A, Dormia, I, Dussoni, S, Empl, A, Fernandez Diaz, M, Ferri, A, Filip, C, Fiorillo, G, Fomenko, K, Franco, D, Froudakis, G, Gabriele, F, Gabrieli, A, Galbiati, C, Garcia Abia, P, Gendotti, A, Ghisi, A, Giagu, S, Giampa, P, Gibertoni, G, Giganti, C, Giorgi, M, Giovanetti, G, Gligan, M, Gola, A, Gorchakov, O, Goretti, A, Granato, F, Grassi, M, Grate, J, Grigoriev, G, Gromov, M, Guan, M, Guerra, M, Guerzoni, M, Gulino, M, Haaland, R, Hallin, A, Harrop, B, Hoppe, E, Horikawa, S, Hosseini, B, Hughes, D, Humble, P, Hungerford, E, Ianni, A, Jillings, C, Johnson, T, Keeter, K, Kendziora, C, Kim, S, Koh, G, Korablev, D, Korga, G, Kubankin, A, Kuss, M, Kúzniak, M, La Commara, M, Lehnert, B, Li, X, Lissia, M, Lodi, G, Loer, B, Longo, G, Loverre, P, Lussana, R, Luzzi, L, Ma, Y, Machado, A, Machulin, I, Mandarano, A, Mapelli, L, Marcante, M, Margotti, A, Mari, S, Mariani, M, Maricic, J, Martoff, C, Mascia, M, Mayer, M, Mcdonald, A, Messina, A, Meyers, P, Milincic, R, Moggi, A, Moioli, S, Monroe, J, Monte, A, Morrocchi, M, Mount, B, Mu, W, Muratova, V, Murphy, S, Musico, P, Nania, R, Navrer Agasson, A, Nikulin, I, Nosov, V, Nozdrina, A, Nurakhov, N, Oleinik, A, Oleynikov, V, Orsini, M, Ortica, F, Pagani, L, Pallavicini, M, Palmas, S, Pandola, L, Pantic, E, Paoloni, E, Paternoster, G, Pavletcov, V, Pazzona, F, Peeters, S, Pelczar, K, Pellegrini, L, Pelliccia, N, Perotti, F, Perruzza, R, Pesudo, V, Piemonte, C, Pilo, F, Pocar, A, Pollmann, T, Portaluppi, D, Pugachev, D, Qian, H, Radics, B, Raffaelli, F, Ragusa, F, Razeti, M, Razeto, A, Regazzoni, V, Regenfus, C, Reinhold, B, Renshaw, A, Rescigno, M, Retière, F, Riffard, Q, Rivetti, A, Rizzardini, S, Romani, A, Romero, L, Rossi, B, Rossi, N, Rubbia, A, Sablone, D, Salatino, P, Samoylov, O, Sánchez García, E, Sands, W, Sanfilippo, S, Sant, M, Santorelli, R, Savarese, C, Scapparone, E, Schlitzer, B, Scioli, G, Segreto, E, Seifert, A, Semenov, D, Shchagin, A, Shekhtman, L, Shemyakina, E, Sheshukov, A, Simeone, M, Singh, P, Skensved, P, Skorokhvatov, M, Smirnov, O, Sobrero, G, Sokolov, A, Sotnikov, A, Speziale, F, Stainforth, R, Stanford, C, Suffritti, G, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Tosi, A, Trinchese, P, Unzhakov, E, Vacca, A, Vázquez-Jáuregui, E, Verducci, M, Viant, T, Villa, F, Vishneva, A, Vogelaar, B, Wada, M, Wahl, J, Walding, J, Wang, H, Wang, Y, Watson, A, Westerdale, S, Williams, R, Wojcik, M, Wu, S, Xiang, X, Xiao, X, Yang, C, Ye, Z, Yllera de Llano, A, Zappa, F, Zappalà, G, Zhu, C, Zichichi, A, Zullo, M, Zullo, A, Zuzel, G, University of Naples Federico II = Università degli studi di Napoli Federico II, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Pavia = University of Pavia (UNIPV), Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), École normale supérieure - Paris (ENS-PSL), Laboratoire de Biologie du Développement (LBD), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Kúzniak, M., Trinchese, Pasquale, Aalseth, C.E., Albuquerque, I.F.M., Alton, A.K., Arnquist, I.J., Asner, D.M., Back, H.O., Barrado Olmedo, A.I., Bisogni, M.G., Cocco, A.G., Da Rocha Rolo, M.D., Froudakis, G.E., Giorgi, M.A., Giovanetti, G.K., Gligan, M.L., Goretti, A.M., Grate, J.W., Grigoriev, G.Y., Guerra, M.B.B., Haaland, R.K., Hoppe, E.W., Hungerford, E.V., Johnson, T.N., Kendziora, C.L., Lodi, G.U., Machado, A.A., Machulin, I.N., Mari, S.M., Martoff, C.J., McDonald, A.B., Meyers, P.D., Mount, B.J., Muratova, V.N., Nozdrina, A.O., Nurakhov, N.N., Pellegrini, L.A., Pugachev, D.A., Renshaw, A.L., Semenov, D.A., Singh, P.N., Skorokhvatov, M.D., Suffritti, G.B., Unzhakov, E.V., Watson, A.W., Wojcik, M.M., Unité de Catalyse et Chimie du Solide - Equipes du Site Artois (UCCS Artois), Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Ecole Centrale de Lille-Université d'Artois (UA)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Ecole Centrale de Lille-Université d'Artois (UA), Universidade Nova de Lisboa = NOVA University of Lisboa (NOVA)-Universidade Nova de Lisboa = NOVA University of Lisboa (NOVA)-Faculdade de Ciências e Tecnologia (FCT NOVA), and Universidade Nova de Lisboa = NOVA University of Lisboa (NOVA)-Universidade Nova de Lisboa = NOVA University of Lisboa (NOVA)
Subjects: Particle physics, VAPOR-PRESSURE, Physics - Instrumentation and Detectors, Solar neutrino, Dark matter, General Physics and Astronomy, FOS: Physical sciences, Scintillator, SCINTILLATION EFFICIENCY, 01 natural sciences, PROPERTIES, Nuclear physics, Physics and Astronomy (all), Silicon photomultiplier, WIMP, LIQUID-ARGON, RADIOACTIVITY, DESIGN, SEARCH, 0103 physical sciences, ISOTOPIC LIQUIDS, 010306 general physics, Cherenkov radiation, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS]Physics [physics], Time projection chamber, 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), MODEL, THERMODYNAMIC, IONIZATION, Dark Matter – WIMP – Nobel Liquid Detector – Low-background Detectors – Liquid Scintillator – SiPM – Silicon Photomultiplier – Underground Argon – Low-radioactivity Argon, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: Building on the successful experience in operating the DarkSide-50 detector, the DarkSide Collaboration is going to construct DarkSide-20k, a direct WIMP search detector using a two-phase Liquid Argon Time Projection Chamber (LAr TPC) with an active (fiducial) mass of 23 t (20 t). This paper describes a preliminary design for the experiment, in which the DarkSide-20k LAr TPC is deployed within a shield/veto with a spherical Liquid Scintillator Veto (LSV) inside a cylindrical Water Cherenkov Veto (WCV). This preliminary design provides a baseline for the experiment to achieve its physics goals, while further development work will lead to the final optimization of the detector parameters and an eventual technical design. Operation of DarkSide-50 demonstrated a major reduction in the dominant 39Ar background when using argon extracted from an underground source, before applying pulse shape analysis. Data from DarkSide-50, in combination with MC simulation and analytical modeling, shows that a rejection factor for discrimination between electron and nuclear recoils of $>3 \times 10^{9}$ is achievable. This, along with the use of the veto system and utilizing silicon photomultipliers in the LAr TPC, are the keys to unlocking the path to large LAr TPC detector masses, while maintaining an experiment in which less than $< 0.1$ events (other than $\nu$ -induced nuclear recoils) is expected to occur within the WIMP search region during the planned exposure. DarkSide-20k will have ultra-low backgrounds than can be measured in situ, giving sensitivity to WIMP-nucleon cross sections of $1.2 \times 10^{-47}$ cm2 ( $1.1 \times 10^{-46}$ cm2) for WIMPs of 1 TeV/c2 (10 TeV/c2) mass, to be achieved during a 5 yr run producing an exposure of 100 t yr free from any instrumental background.
Published: 2018
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10. Low-mass dark matter search with the DarkSide-50 experiment

Author: Andrea Gabrieli, A. Oleinik, F. Granato, M. Downing, Rosario Nania, D. A. Semenov, S. Stracka, K. Biery, K. Keeter, L. Pagani, C. Giganti, C. Dionisi, Antonino Zichichi, V. Pesudo, B. R. Hackett, G. Koh, Anton Empl, G. Batignani, M. Orsini, M. La Commara, M. D. Skorokhvatov, F. Pazzona, Fausto Ortica, M. M. Wojcik, B. Baldin, M. Ave, A. Vishneva, D. M. Asner, E. Segreto, R. Milincic, M. Caravati, A. A. Machado, A. Sheshukov, Monica Verducci, P. Garcia Abia, G. Fiorillo, Pierfranco Demontis, A. Monte, D. Hughes, Francesco Ragusa, Giuseppe Baldovino Suffritti, M. H. Hassanshahi, M. Razeti, Ivone F. M. Albuquerque, S. S. Poudel, Yonatan Kahn, I. Kochanek, Nicomede Pelliccia, B. Vogelaar, O. Gorchakov, M. D'Incecco, A. Candela, M. Rescigno, Z. Ye, V. Bocci, G. Di Pietro, H. Qian, S. Davini, C. J. Martoff, S. Sanfilippo, A. L. Renshaw, Ben Loer, A. S. Kubankin, Y. Suvorov, R. Tartaglia, Giovanni Covone, S. Catalanotti, A. G. Cocco, R. Santorelli, C. Savarese, S. Pordes, G. Testera, Xiujiang Li, M. Carlini, A. M. Goretti, A. S. Chepurnov, Chung-Yao Yang, Mariano Cadoni, Andrea Messina, Stefano Giagu, M. Kuss, A. Caminata, K. Pelczar, Cristiano Galbiati, F. Gabriele, A. de Candia, E. Pantic, Q. Riffard, P. N. Singh, T. J. Waldrop, Matteo Morrocchi, K. Herner, F. Di Eusanio, C. Stanford, Luciano Pandola, Severino Angelo Maria Bussino, P. Trinchese, N. Rossi, B. Hosseini, F. Budano, C. Cicalo, G. Korga, T. N. Johnson, E. V. Hungerford, A. Tonazzo, W. Bonivento, Giuseppe Longo, S. Westerdale, P. Cavalcante, Aldo Romani, Al. Ianni, A. Sotnikov, An. Ianni, Yuting Wang, A. Devoto, P. Agnes, E. Edkins, Caoxiang Zhu, M. Cadeddu, V. N. Muratova, B. Bottino, M. Lai, D. Korablev, Paul H. Humble, Vittorio Cataudella, Marco Sant, C. L. Kendziora, Irina James, K. Fomenko, M. Carpinelli, S. De Cecco, Min-Xin Guan, P. D. Meyers, R. Cereseto, Stefano Maria Mari, D. Sablone, G. Bonfini, G. De Rosa, M. Wada, G. Zuzel, Mariangela Lisanti, Siddharth Mishra-Sharma, Frank Calaprice, X. Xiang, J. Maricic, Y. Guardincerri, A. V. Derbin, Yanhui Ma, M. De Deo, B. Reinhold, Paolo Musico, Eugenio Scapparone, A. Fan, M. De Vincenzi, D. A. Pugachev, Luisa Cifarelli, Marisa Gulino, A. K. Alton, Stefano Cavuoti, G. R. Araujo, A. Navrer Agasson, H. O. Back, M. Cariello, B. J. Mount, G. K. Giovanetti, M. Gromov, A. Razeto, C. Ghiano, B. Schlitzer, O. Samoylov, L. Mapelli, O. Smirnov, E. V. Unzhakov, A. O. Nozdrina, A. Pocar, W. Sands, M. Lissia, G. De Filippis, Xiang Xiao, A.V. Shchagin, B. Rossi, Alan Watson, A. Mandarano, E. Paoloni, Hui Wang, Valerio Ippolito, Thomas Alexander, I. N. Machulin, N. Canci, Marco Pallavicini, D. Franco, D. D'Angelo, D. D'Urso, Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Araujo, G. R., Asner, D. M., Ave, M., Back, H. O., Baldin, B., Batignani, G., Biery, K., Bocci, V., Bonfini, G., Bonivento, W., Bottino, B., Budano, F., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Canci, N., Candela, A., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cereseto, R., Chepurnov, A., Cicalò, C., Cifarelli, L., Cocco, A. G., Covone, G., D'Angelo, D., D'Incecco, M., D'Urso, D., Davini, S., De Candia, A., De Cecco, S., De Deo, M., De Filippis, G., De Rosa, G., De Vincenzi, M., Demontis, P., Derbin, A. V., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Downing, M., Edkins, E., Empl, A., Fan, A., Fiorillo, G., Fomenko, K., Franco, D., Gabriele, F., Gabrieli, A., Galbiati, C., Garcia Abia, P., Ghiano, Chiara, Giagu, S., Giganti, C., Giovanetti, G. K., Gorchakov, O., Goretti, A. M., Granato, F., Gromov, M., Guan, M., Guardincerri, Y., Gulino, M., Hackett, B. R., Hassanshahi, M. H., Herner, K., Hosseini, B., Hughes, D., Humble, P., Hungerford, E. V., Ianni, Al., Ianni, An., Ippolito, V., James, I., Johnson, T. N., Kahn, Y., Keeter, K., Kendziora, C. L., Kochanek, I., Koh, G., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lisanti, M., Lissia, M., Loer, B., Longo, G., Ma, Y., Machado, A. A., Machulin, I. N., Mandarano, A., Mapelli, L., Mari, S. M., Maricic, J., Martoff, C. J., Messina, A., Meyers, P. D., Milincic, R., Mishra-Sharma, S., Monte, A., Morrocchi, M., Mount, B. J., Muratova, V. N., Musico, P., Nania, R., Navrer Agasson, A., Nozdrina, A. O., Oleinik, A., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pazzona, F., Pelczar, K., Pelliccia, N., Pesudo, V., Pocar, A., Pordes, S., Poudel, S. S., Pugachev, D. A., Qian, H., Ragusa, F., Razeti, M., Razeto, A., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Romani, A., Rossi, B., Rossi, N., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Sant, M., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Segreto, E., Semenov, D. A., Shchagin, A., Sheshukov, A., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stanford, C., Stracka, S., Suffritti, G. B., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Trinchese, P., Unzhakov, E. V., Verducci, M., Vishneva, A., Vogelaar, B., Wada, M., Waldrop, T. J., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wojcik, M. M., Wojcik, M., Xiang, X., Xiao, X., Yang, C., Ye, Z., Zhu, C., Zichichi, A., Zuzel, G., AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), DarkSide, D’Angelo, D., D’Incecco, M., D’Urso, D., Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Agnes, P, Albuquerque, I, Alexander, T, Alton, A, Araujo, G, Asner, D, Ave, M, Back, H, Baldin, B, Batignani, G, Biery, K, Bocci, V, Bonfini, G, Bonivento, W, Bottino, B, Budano, F, Bussino, S, Cadeddu, M, Cadoni, M, Calaprice, F, Caminata, A, Canci, N, Candela, A, Caravati, M, Cariello, M, Carlini, M, Carpinelli, M, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavuoti, S, Cereseto, R, Chepurnov, A, Cicalò, C, Cifarelli, L, Cocco, A, Covone, G, D'Angelo, D, D'Incecco, M, D'Urso, D, Davini, S, De Candia, A, De Cecco, S, De Deo, M, De Filippis, G, De Rosa, G, De Vincenzi, M, Demontis, P, Derbin, A, Devoto, A, Di Eusanio, F, Di Pietro, G, Dionisi, C, Downing, M, Edkins, E, Empl, A, Fan, A, Fiorillo, G, Fomenko, K, Franco, D, Gabriele, F, Gabrieli, A, Galbiati, C, Garcia Abia, P, Ghiano, C, Giagu, S, Giganti, C, Giovanetti, G, Gorchakov, O, Goretti, A, Granato, F, Gromov, M, Guan, M, Guardincerri, Y, Gulino, M, Hackett, B, Hassanshahi, M, Herner, K, Hosseini, B, Hughes, D, Humble, P, Hungerford, E, Ianni, A, Ippolito, V, James, I, Johnson, T, Kahn, Y, Keeter, K, Kendziora, C, Kochanek, I, Koh, G, Korablev, D, Korga, G, Kubankin, A, Kuss, M, La Commara, M, Lai, M, Li, X, Lisanti, M, Lissia, M, Loer, B, Longo, G, Ma, Y, Machado, A, Machulin, I, Mandarano, A, Mapelli, L, Mari, S, Maricic, J, Martoff, C, Messina, A, Meyers, P, Milincic, R, Mishra-Sharma, S, Monte, A, Morrocchi, M, Mount, B, Muratova, V, Musico, P, Nania, R, Navrer Agasson, A, Nozdrina, A, Oleinik, A, Orsini, M, Ortica, F, Pagani, L, Pallavicini, M, Pandola, L, Pantic, E, Paoloni, E, Pazzona, F, Pelczar, K, Pelliccia, N, Pesudo, V, Pocar, A, Pordes, S, Poudel, S, Pugachev, D, Qian, H, Ragusa, F, Razeti, M, Razeto, A, Reinhold, B, Renshaw, A, Rescigno, M, Riffard, Q, Romani, A, Rossi, B, Rossi, N, Sablone, D, Samoylov, O, Sands, W, Sanfilippo, S, Sant, M, Santorelli, R, Savarese, C, Scapparone, E, Schlitzer, B, Segreto, E, Semenov, D, Shchagin, A, Sheshukov, A, Singh, P, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Stanford, C, Stracka, S, Suffritti, G, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Trinchese, P, Unzhakov, E, Verducci, M, Vishneva, A, Vogelaar, B, Wada, M, Waldrop, T, Wang, H, Wang, Y, Watson, A, Westerdale, S, Wojcik, M, Xiang, X, Xiao, X, Yang, C, Ye, Z, Zhu, C, Zichichi, A, Zuzel, G, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, ARGON, Dark matter, General Physics and Astronomy, chemistry.chemical_element, FOS: Physical sciences, S030DI5, dark matter: direct detection, Gravitation and Astrophysics, S030DI1, 01 natural sciences, WIMP: dark matter, Nuclear physics, Physics and Astronomy (all), Ionization, 0103 physical sciences, Nuclear Experiment, 010306 general physics, CAPTURE, SIMULATIONS, CONSTRAINTS, IONIZATION, GALAXIES, AR-39, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Range (particle radiation), Argon, Time projection chamber, 010308 nuclear & particles physics, background, Gran Sasso, time projection chamber, dark matter: scattering, chemistry, Weakly interacting massive particles, High Energy Physics::Experiment, Nucleon, Low Mass, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present the results of a search for dark matter WIMPs in the mass range below 20 GeV/c^2 using a target of low-radioactivity argon. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso (LNGS). The analysis is based on the ionization signal, for which the DarkSide-50 time projection chamber is fully efficient at 0.1 keVee. The observed rate in the detector at 0.5 keVee is about 1.5 events/keVee/kg/day and is almost entirely accounted for by known background sources. We obtain a 90% C.L. exclusion limit above 1.8 GeV/c^2 for the spin-independent cross section of dark matter WIMPs on nucleons, extending the exclusion region for dark matter below previous limits in the range 1.8-6 GeV/c^2., 9 pages, 8 figures; submission accepted by journal
Published: 2018
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11. Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC

Author: R. Tartaglia, Monica Verducci, Nicomede Pelliccia, Ivone F. M. Albuquerque, S. Catalanotti, B. Reinhold, A. Oleinik, C. Zhu, P. Trinchese, P. Cavalcante, A. G. Cocco, M. Carpinelli, S. De Cecco, Ben Loer, S. Sanfilippo, C. Savarese, Stefano Giagu, An. Ianni, K. Biery, K. Keeter, I. N. Machulin, V. Bocci, D. D'Urso, V. N. Muratova, G. De Rosa, N. Canci, L. Pagani, Marco Pallavicini, B. Bottino, Andrea Gabrieli, M. D. Skorokhvatov, A. V. Derbin, T. J. Waldrop, Min-Xin Guan, Mariano Cadoni, D. D'Angelo, Q. Riffard, G. Zuzel, D. Korablev, D. Sablone, G. Bonfini, A. Devoto, Frank Calaprice, F. Di Eusanio, X. Xiang, Giovanni Covone, Xiaoyuan Li, C. Cicalo, M. Carlini, Aldo Romani, N. Rossi, M. Kuss, P. Agnes, D. Hughes, P. N. Singh, G. Testera, K. Pelczar, Cristiano Galbiati, F. Pazzona, A. Navrer Agasson, G. Korga, Marco Sant, A. Monte, Luciano Pandola, Z. Ye, G. Batignani, M. Orsini, M. De Vincenzi, Severino Angelo Maria Bussino, A. S. Kubankin, Stefano Cavuoti, M. Wada, M. Ave, S. Walker, Peter Daniel Meyers, Matteo Morrocchi, K. Herner, F. Budano, O. Smirnov, Y. Guardincerri, E. V. Hungerford, M. Caravati, A. A. Machado, Paolo Musico, Pierfranco Demontis, Chung-Yao Yang, Andrea Messina, C. Giganti, B. R. Hackett, M. Rescigno, H. O. Back, A. Fan, Y. Suvorov, I. Kochanek, A. Sotnikov, S. Westerdale, S. Pordes, Fausto Ortica, Yanhui Ma, M. Cariello, A. L. Renshaw, D. M. Asner, M. De Deo, Stefano Maria Mari, G. K. Giovanetti, D. A. Semenov, B. Vogelaar, A. Candela, A. M. Goretti, A. S. Chepurnov, M. Gromov, E. Edkins, A. Razeto, W. Bonivento, G. Di Pietro, Marisa Gulino, J. Maricic, C. Stanford, B. Schlitzer, E. Segreto, E. V. Unzhakov, C. Dionisi, Giuseppe Baldovino Suffritti, T. N. Johnson, A. O. Nozdrina, G. Koh, A. K. Alton, A. Pocar, Vittorio Cataudella, Paul H. Humble, B. Baldin, Marcin Wójcik, B. J. Mount, A. Sheshukov, S. Davini, C. J. Martoff, A. Caminata, F. Gabriele, A. Tonazzo, F. Granato, M. Bossa, B. Rossi, R. Milincic, Yuting Wang, Alan Watson, A. Mandarano, C. L. Kendziora, Irina James, A. Vishneva, M. Razeti, M. Lissia, G. De Filippis, G. Fiorillo, K. Fomenko, M. D'Incecco, Xiang Xiao, H. Qian, A. de Candia, E. Pantic, Giuseppe Longo, M. Cadeddu, W. Sands, C. Ghiano, E. Paoloni, O. Samoylov, Hui Wang, Thomas Alexander, D. Franco, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), DarkSide, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Asner, D. M., Ave, M. P., Back, H. O., Baldin, B., Batignani, G., Biery, K., Bocci, V., Bonfini, G., Bonivento, W., Bossa, M., Bottino, B., Budano, F., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Canci, N., Candela, A., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Chepurnov, A., Cicalò, C., Cocco, A. G., Covone, G., D'Angelo, D., D'Incecco, M., D'Urso, D., Davini, S., De Candia, A., De Cecco, S., De Deo, M., De Filippis, G., De Rosa, G., De Vincenzi, M., Demontis, P., Derbin, A. V., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Edkins, E., Fan, A., Fiorillo, G., Fomenko, K., Franco, D., Gabriele, F., Gabrieli, A., Galbiati, C., Ghiano, C., Giagu, S., Giganti, C., Giovanetti, G. K., Goretti, A. M., Granato, F., Gromov, M., Guan, M., Guardincerri, Y., Gulino, M., Hackett, B. R., Herner, K., Hughes, D., Humble, P., Hungerford, E. V., Ianni, An., James, I., Johnson, T. N., Keeter, K., Kendziora, C. L., Kochanek, I., Koh, G., Korablev, D., Korga, G., Kubankin, A., Kuss, M., Li, X., Lissia, M., Loer, B., Longo, G., Ma, Y., Machado, A. A., Machulin, I. N., Mandarano, A., Mari, S. M., Maricic, J., Martoff, C. J., Messina, A., Meyers, P. D., Milincic, R., Monte, A., Morrocchi, M., Mount, B. J., Muratova, V. N., Musico, P., Navrer Agasson, A., Nozdrina, A., Oleinik, A., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pazzona, F., Pelczar, K., Pelliccia, N., Pocar, A., Pordes, S., Qian, H., Razeti, M., Razeto, A., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Romani, A., Rossi, B., Rossi, N., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Sant, M., Savarese, C., Schlitzer, B., Segreto, E., Semenov, D. A., Sheshukov, A., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stanford, C., Suffritti, G. B., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Trinchese, P., Unzhakov, E. V., Verducci, M., Vishneva, A., Vogelaar, B., Wada, M., Waldrop, T. J., Walker, S., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wojcik, M. M., Xiang, X., Xiao, X., Yang, C., Ye, Z., Zhu, C., Zuzel, G., AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Agnes, P, Albuquerque, I, Alexander, T, Alton, A, Asner, D, Ave, M, Back, H, Baldin, B, Batignani, G, Biery, K, Bocci, V, Bonfini, G, Bonivento, W, Bossa, M, Bottino, B, Budano, F, Bussino, S, Cadeddu, M, Cadoni, M, Calaprice, F, Caminata, A, Canci, N, Candela, A, Caravati, M, Cariello, M, Carlini, M, Carpinelli, M, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavuoti, S, Chepurnov, A, Cicalò, C, Cocco, A, Covone, G, D'Angelo, D, D'Incecco, M, D'Urso, D, Davini, S, De Candia, A, De Cecco, S, De Deo, M, De Filippis, G, De Rosa, G, De Vincenzi, M, Demontis, P, Derbin, A, Devoto, A, Di Eusanio, F, Di Pietro, G, Dionisi, C, Edkins, E, Fan, A, Fiorillo, G, Fomenko, K, Franco, D, Gabriele, F, Gabrieli, A, Galbiati, C, Ghiano, C, Giagu, S, Giganti, C, Giovanetti, G, Goretti, A, Granato, F, Gromov, M, Guan, M, Guardincerri, Y, Gulino, M, Hackett, B, Herner, K, Hughes, D, Humble, P, Hungerford, E, Ianni, A, James, I, Johnson, T, Keeter, K, Kendziora, C, Kochanek, I, Koh, G, Korablev, D, Korga, G, Kubankin, A, Kuss, M, Li, X, Lissia, M, Loer, B, Longo, G, Ma, Y, Machado, A, Machulin, I, Mandarano, A, Mari, S, Maricic, J, Martoff, C, Messina, A, Meyers, P, Milincic, R, Monte, A, Morrocchi, M, Mount, B, Muratova, V, Musico, P, Navrer Agasson, A, Nozdrina, A, Oleinik, A, Orsini, M, Ortica, F, Pagani, L, Pallavicini, M, Pandola, L, Pantic, E, Paoloni, E, Pazzona, F, Pelczar, K, Pelliccia, N, Pocar, A, Pordes, S, Qian, H, Razeti, M, Razeto, A, Reinhold, B, Renshaw, A, Rescigno, M, Riffard, Q, Romani, A, Rossi, B, Rossi, N, Sablone, D, Samoylov, O, Sands, W, Sanfilippo, S, Sant, M, Savarese, C, Schlitzer, B, Segreto, E, Semenov, D, Sheshukov, A, Singh, P, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Stanford, C, Suffritti, G, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Trinchese, P, Unzhakov, E, Verducci, M, Vishneva, A, Vogelaar, B, Wada, M, Waldrop, T, Walker, S, Wang, H, Wang, Y, Watson, A, Westerdale, S, Wojcik, M, Xiang, X, Xiao, X, Yang, C, Ye, Z, Zhu, C, and Zuzel, G
Subjects: Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, longitudinal, Physics::Instrumentation and Detectors, shape analysis, chemistry.chemical_element, FOS: Physical sciences, Field strength, Electron, 01 natural sciences, energy dependence, XENON, Recoil, statistical analysis, electron: recoil, Electric field, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Diffusion (business), 010306 general physics, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, Nuclear and High Energy Physic, Physics, Time projection chamber, Argon, Electron diffusion constant, 010308 nuclear & particles physics, electric field: field strength, diffusion, Instrumentation and Detectors (physics.ins-det), time projection chamber: liquid argon, Fick's laws of diffusion, TRANSPORT, AR-39, chemistry, Liquid argon, Atomic physics, electron: diffusion
Abstract: We report the measurement of the longitudinal diffusion constant in liquid argon with the DarkSide-50 dual-phase time projection chamber. The measurement is performed at drift electric fields of 100 V/cm, 150 V/cm, and 200 V/cm using high statistics 39 Ar decays from atmospheric argon. We derive an expression to describe the pulse shape of the electroluminescence signal (S2) in dual-phase TPCs. The derived S2 pulse shape is fit to events from the uppermost portion of the TPC in order to characterize the radial dependence of the signal. The results are provided as inputs to the measurement of the longitudinal diffusion constant D L , which we find to be (4.12 ± 0.09) cm2/s for a selection of 140 keV electron recoil events in 200 V/cm drift field and 2.8 kV/cm extraction field. To study the systematics of our measurement we examine data sets of varying event energy, field strength, and detector volume yielding a weighted average value for the diffusion constant of (4.09 ± 0.12) cm2/s. The measured longitudinal diffusion constant is observed to have an energy dependence, and within the studied energy range the result is systematically lower than other results in the literature.
Published: 2018
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12. Constraints on sub-gev dark-matter-electron scattering from the darkside-50 experiment

Author: A. Vishneva, P. Garcia Abia, Min-Xin Guan, S. S. Poudel, P. Trinchese, B. Vogelaar, O. Gorchakov, An. Ianni, V. N. Muratova, B. Bottino, A. L. Renshaw, M. Razeti, C. Giganti, F. Pazzona, Yuting Wang, N. Pelliccia, P. D. Meyers, R. Cereseto, V. Pesudo, M. La Commara, S. Bussino, Monica Verducci, Antonino Zichichi, C. L. Kendziora, Irina James, Marisa Gulino, A. Candela, M. Downing, Rosario Nania, B. Reinhold, Mariano Cadoni, E. Segreto, M. Wada, Y. Guardincerri, Stefano Cavuoti, R. Tartaglia, Eugenio Scapparone, M. De Vincenzi, M. M. Wojcik, M. Caravati, A. A. Machado, F. Gabriele, M. H. Hassanshahi, A. Navrer Agasson, G. Testera, K. Pelczar, Cristiano Galbiati, Pierfranco Demontis, Fausto Ortica, C. Savarese, Stefano Giagu, N. Rossi, M. Lissia, S. Catalanotti, Andrea Gabrieli, G. De Filippis, M. Cariello, D. M. Asner, P. Cavalcante, K. Fomenko, Xiang Xiao, E. Paoloni, G. Fiorillo, A. G. Cocco, A. Oleinik, O. Smirnov, G. Di Pietro, I. N. Machulin, C. Ghiano, Giovanni Covone, N. Canci, A. Devoto, Hui Wang, Marco Pallavicini, G. K. Giovanetti, M. D'Incecco, D. D'Angelo, Valerio Ippolito, M. D. Skorokhvatov, E. V. Unzhakov, D. D'Urso, V. Bocci, H. Qian, A. Monte, O. Samoylov, A.V. Shchagin, G. De Rosa, K. Biery, K. Keeter, Siddharth Mishra-Sharma, J. Maricic, Yanhui Ma, Marco Sant, Thomas Alexander, R. Milincic, Mariangela Lisanti, M. Rescigno, A. Empl, Luciano Pandola, T. N. Johnson, L. Pagani, B. Rossi, M. De Deo, A. Caminata, R. Santorelli, D. A. Semenov, S. Stracka, D. Hughes, A. V. Derbin, A. Razeto, S. Pordes, A. de Candia, E. Pantic, Alan Watson, A. Mandarano, C. Cicalo, M. Kuss, A. O. Nozdrina, C. Dionisi, D. Korablev, Z. Ye, A. S. Kubankin, Q. Riffard, G. Korga, B. R. Hackett, E. Picciau, Paolo Musico, Ivone F. M. Albuquerque, A. Fan, W. Bonivento, Giuseppe Longo, D. Franco, D. A. Pugachev, A. Pocar, G. Koh, Vittorio Cataudella, A. Tonazzo, Ben Loer, D. Sablone, W. Sands, M. Cadeddu, Yonatan Kahn, I. Kochanek, T. J. Waldrop, S. Sanfilippo, Frank Calaprice, F. Di Eusanio, X. Xiang, Aldo Romani, G. Bonfini, F. Granato, P. Agnes, M. Carlini, P. N. Singh, M. Gromov, F. Budano, Chung-Yao Yang, Andrea Messina, A. K. Alton, G. R. Araujo, Y. Suvorov, A. M. Goretti, A. S. Chepurnov, B. J. Mount, E. V. Hungerford, S. Westerdale, G. Batignani, M. Orsini, M. Ave, A. Sotnikov, M. Carpinelli, S. De Cecco, H. O. Back, G. Zuzel, Francesco Ragusa, Xiujiang Li, Giuseppe Baldovino Suffritti, Matteo Morrocchi, K. Herner, B. Hosseini, C. Stanford, Paul H. Humble, Luisa Cifarelli, B. Schlitzer, L. Mapelli, Al. Ianni, E. Edkins, Caoxiang Zhu, M. Lai, Stefano Maria Mari, B. Baldin, A. Sheshukov, S. Davini, C. J. Martoff, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), DarkSide, Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Araujo, G. R., Asner, D. M., Ave, M., Back, H. O., Baldin, B., Batignani, G., Biery, K., Bocci, V., Bonfini, G., Bonivento, W., Bottino, B., Budano, F., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Canci, N., Candela, A., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cereseto, R., Chepurnov, A., Cicalò, C., Cifarelli, L., Cocco, A. G., Covone, G., D'Angelo, D., D'Incecco, M., D'Urso, D., Davini, S., De Candia, A., De Cecco, S., De Deo, M., De Filippis, G., De Rosa, G., De Vincenzi, M., Demontis, P., Derbin, A. V., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Downing, M., Edkins, E., Empl, A., Fan, A., Fiorillo, G., Fomenko, K., Franco, D., Gabriele, F., Gabrieli, A., Galbiati, C., Garcia Abia, P., Ghiano, C., Giagu, S., Giganti, C., Giovanetti, G. K., Gorchakov, O., Goretti, A. M., Granato, F., Gromov, M., Guan, M., Guardincerri, Y., Gulino, M., Hackett, B. R., Hassanshahi, M. H., Herner, K., Hosseini, B., Hughes, D., Humble, P., Hungerford, E. V., Ianni, Al., Ianni, An., Ippolito, V., James, I., Johnson, T. N., Kahn, Y., Keeter, K., Kendziora, C. L., Kochanek, I., Koh, G., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lisanti, M., Lissia, M., Loer, B., Longo, G., Ma, Y., Machado, A. A., Machulin, I. N., Mandarano, A., Mapelli, L., Mari, S. M., Maricic, J., Martoff, C. J., Messina, A., Meyers, P. D., Milincic, R., Mishra-Sharma, S., Monte, A., Morrocchi, M., Mount, B. J., Muratova, V. N., Musico, P., Nania, R., Navrer Agasson, A., Nozdrina, A. O., Oleinik, A., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pazzona, F., Pelczar, K., Pelliccia, N., Pesudo, V., Picciau, E., Pocar, A., Pordes, S., Poudel, S. S., Pugachev, D. A., Qian, H., Ragusa, F., Razeti, M., Razeto, A., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Romani, A., Rossi, B., Rossi, N., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Sant, M., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Segreto, E., Semenov, D. A., Shchagin, A., Sheshukov, A., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stanford, C., Stracka, S., Suffritti, G. B., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Trinchese, P., Unzhakov, E. V., Verducci, M., Vishneva, A., Vogelaar, B., Wada, M., Waldrop, T. J., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wojcik, M. M., Wojcik, M., Xiang, X., Xiao, X., Yang, C., Ye, Z., Zhu, C., Zichichi, A., Zuzel, G., Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), D’Angelo, D., D’Incecco, M., D’Urso, D., Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Agnes, P, Albuquerque, I, Alexander, T, Alton, A, Araujo, G, Asner, D, Ave, M, Back, H, Baldin, B, Batignani, G, Biery, K, Bocci, V, Bonfini, G, Bonivento, W, Bottino, B, Budano, F, Bussino, S, Cadeddu, M, Cadoni, M, Calaprice, F, Caminata, A, Canci, N, Candela, A, Caravati, M, Cariello, M, Carlini, M, Carpinelli, M, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavuoti, S, Cereseto, R, Chepurnov, A, Cicalò, C, Cifarelli, L, Cocco, A, Covone, G, D'Angelo, D, D'Incecco, M, D'Urso, D, Davini, S, De Candia, A, De Cecco, S, De Deo, M, De Filippis, G, De Rosa, G, De Vincenzi, M, Demontis, P, Derbin, A, Devoto, A, Di Eusanio, F, Di Pietro, G, Dionisi, C, Downing, M, Edkins, E, Empl, A, Fan, A, Fiorillo, G, Fomenko, K, Franco, D, Gabriele, F, Gabrieli, A, Galbiati, C, Garcia Abia, P, Ghiano, C, Giagu, S, Giganti, C, Giovanetti, G, Gorchakov, O, Goretti, A, Granato, F, Gromov, M, Guan, M, Guardincerri, Y, Gulino, M, Hackett, B, Hassanshahi, M, Herner, K, Hosseini, B, Hughes, D, Humble, P, Hungerford, E, Ianni, A, Ippolito, V, James, I, Johnson, T, Kahn, Y, Keeter, K, Kendziora, C, Kochanek, I, Koh, G, Korablev, D, Korga, G, Kubankin, A, Kuss, M, La Commara, M, Lai, M, Li, X, Lisanti, M, Lissia, M, Loer, B, Longo, G, Ma, Y, Machado, A, Machulin, I, Mandarano, A, Mapelli, L, Mari, S, Maricic, J, Martoff, C, Messina, A, Meyers, P, Milincic, R, Mishra-Sharma, S, Monte, A, Morrocchi, M, Mount, B, Muratova, V, Musico, P, Nania, R, Navrer Agasson, A, Nozdrina, A, Oleinik, A, Orsini, M, Ortica, F, Pagani, L, Pallavicini, M, Pandola, L, Pantic, E, Paoloni, E, Pazzona, F, Pelczar, K, Pelliccia, N, Pesudo, V, Picciau, E, Pocar, A, Pordes, S, Poudel, S, Pugachev, D, Qian, H, Ragusa, F, Razeti, M, Razeto, A, Reinhold, B, Renshaw, A, Rescigno, M, Riffard, Q, Romani, A, Rossi, B, Rossi, N, Sablone, D, Samoylov, O, Sands, W, Sanfilippo, S, Sant, M, Santorelli, R, Savarese, C, Scapparone, E, Schlitzer, B, Segreto, E, Semenov, D, Shchagin, A, Sheshukov, A, Singh, P, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Stanford, C, Stracka, S, Suffritti, G, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Trinchese, P, Unzhakov, E, Verducci, M, Vishneva, A, Vogelaar, B, Wada, M, Waldrop, T, Wang, H, Wang, Y, Watson, A, Westerdale, S, Wojcik, M, Xiang, X, Xiao, X, Yang, C, Ye, Z, Zhu, C, Zichichi, A, and Zuzel, G
Subjects: electron, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, candidates, Dark matter, FOS: Physical sciences, General Physics and Astronomy, chemistry.chemical_element, Electron, dark matter: direct detection, Gravitation and Astrophysics, 01 natural sciences, Physics and Astronomy (all), Recoil, liquid argon, xenon, particles, existence, AR-39, S030DE5, Ionization, 0103 physical sciences, Physics::Atomic and Molecular Clusters, 010306 general physics, S030UDM, Physics, Time projection chamber, Argon, 010308 nuclear & particles physics, Scattering, dark matter: mass, dark matter: scattering, chemistry, argon, High Energy Physics::Experiment, Atomic physics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Electron scattering, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present new constraints on sub-GeV dark matter particles scattering off electrons in argon based on an analysis of ionization signal data from the DarkSide-50 detector., replaced with published version
Published: 2018
Full Text: View/download PDF

13. DarkSide new results and prospects

Author: P. Agnes, I. F. M. Albuquerque, T. Alexander, A. K. Alton, G. R. Araujo, D. M. Asner, M. P. Ave, H. O. Back, B. Baldin, G. Batignani, K. Biery, V. Bocci, G. Bon- fini, W. Bonivento, B. Bottino, F. Budano, S. Bussino, M. Cadoni, F. Calaprice, A. Caminata, N. Canci, A. Candela, M. Caravati, M. Cariello, M. Carlini, M. Carpinelli, S. Catalanotti, V. Cataudella, P. Cavalcante, S. Cavuoti, A. Chepurnov, C. Cical` o, L. Cifarelli, A. G. Cocco, G. Covone, D. D’Angelo, M. D’Incecco, D. D’Urso, S. Davin, A. De Candia, S. De Cecco, M. De Deo, G. De Filippis, G. De Rosa, M. De Vincenzi, P. Demontis, A. V. Derbin, A. De- voto, F. Di Eusanio, G. Di Pietro, C. Dionisi, M. Downing, E. Edkins, A. Empl, A. Fan, FIORILLO, GIULIO, K. Fomenko, D. Franco, F. Gabriele, A. Gabrieli, C. Galbiati, P. Garcia Abia, S. Giagu, C. Giganti, G. K. Giovanetti, O. Gorchakov, A. M. Goretti, F. Granato, M. Gromov, M. Guan, Y. Guardincerri, M. Gulino, B. R. Hackett, M. H. Hassanshahi, K. Herner, B. Hos- seini, D. Hughes, P. Humble, E. V. Hungerford, Al. Ianni, An. Ianni, V. Ippolito, I. James, T. N. Johnson, Y. Kahn, K. Keeter, C. L. Kendziora, I. Kochanek, G. Koh, D. Korablev, G. Ko- rga, A. Kubankin, M. Kuss, M. La Commara, M. Lai, X. Li, M. Lisanti, M. Lissia, B. Loer, G. Longo, Y. Ma, A. A. Machado, I. N. Machulin, A. Mandarano, L. Mapelli, S. M. Mari, J. Mari- cic, C. J. Martoff, A. Messina, P. D. Meyers, R. Milincic, S. Mishra-Sharma, A. Monte, M. Mor- rocchi, B. J. Mount, V. N. Muratova, P. Musico, R. Nania, A. Navrer Agasson, A. O. Nozdrina, A. Oleinik, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, L. Pandola, E. Pantic, E. Paolon, F. Pazzona, K. Pelczar, N. Pelliccia, V. Pesudo, E. Picciau, A. Pocar, S. Pordes, S. S. Poudel, D. A. Pugachev, H. Qian, F. Ragusa, M. Razeti, A. Razeto, B. Reinhold, A. L. Renshaw, M. Rescigno, Q. Riffard, A. Romani, B. Rossi, N. Rossi, D. Sablone, O. Samoylov, W. Sands, S. Sanfilippo, M. Sant, R. Santorelli, C. Savarese, E. Scapparone, B. Schlitzer, E. Segreto, D. A. Semenov, A. Shchagin, A. Sheshukov, P. N. Singh, M. D. Skorokhvatov, O. Smirnov, A. Sotnikov, C. Stanford, S. Stracka, G. B. Suffritti, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, P. Trinchese, E. V. Unzhakov, M. Verducci, A. Vishneva, B. Vogelaar, M. Wada, T. J. Waldrop, H. Wang, Y. Wang, A. W. Watson, S. Westerdale, M. M. Wojcik, M. Wojcik, X. Xiang, X. Xiao, C. Yang, Z. Ye, C. Zhu, A. Zichichi, G. Zuzel., Cadeddu, M, Agnes, P, Albuquerque, I, Alexander, T, Alton, A, Araujo, G, Asner, D, Ave, M, Back, H, Baldin, B, Batignani, G, Biery, K, Bocci, V, Bonfini, G, Bonivento, W, Bottino, B, Budano, F, Bussino, S, Cadoni, M, Calaprice, F, Caminata, A, Canci, N, Candela, A, Caravati, M, Cariello, M, Carlini, M, Carpinelli, M, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavuoti, S, Chepurnov, A, Cicalo, C, Cifarelli, L, Cocco, A, Covone, G, D'Angelo, D, D'Incecco, M, D'Urso, D, Davin, S, de Candia, A, de Cecco, S, de Deo, M, de Filippis, G, de Rosa, G, de Vincenzi, M, Demontis, P, Derbin, A, Devoto, A, Di Eusanio, F, Di Pietro, G, Dionisi, C, Downing, M, Edkins, E, Empl, A, Fan, A, Fiorillo, G, Fomenko, K, Franco, D, Gabriele, F, Gabrieli, A, Galbiati, C, Abia, P, Giagu, S, Giganti, C, Giovanetti, G, Gorchakov, O, Goretti, A, Granato, F, Gromov, M, Guan, M, Guardincerri, Y, Gulino, M, Hackett, B, Hassanshahi, M, Herner, K, Hos-Seini, B, Hughes, D, Humble, P, Hungerford, E, Ianni, A, Ippolito, V, James, I, Johnson, T, Kahn, Y, Keeter, K, Kendziora, C, Kochanek, I, Koh, G, Korablev, D, Korga, G, Kubankin, A, Kuss, M, la Commara, M, Lai, M, Li, X, Lisanti, M, Lissia, M, Loer, B, Longo, G, Ma, Y, Machado, A, Machulin, I, Mandarano, A, Mapelli, L, Mari, S, Maricic, J, Martoff, C, Messina, A, Meyers, P, Milincic, R, Mishra-Sharma, S, Monte, A, Morrocchi, M, Mount, B, Muratova, V, Musico, P, Nania, R, Agasson, A, Nozdrina, A, Oleinik, A, Orsini, M, Ortica, F, Pagani, L, Pallavicini, M, Pandola, L, Pantic, E, Paolon, E, Pazzona, F, Pelczar, K, Pelliccia, N, Pesudo, V, Picciau, E, Pocar, A, Pordes, S, Poudel, S, Pugachev, D, Qian, H, Ragusa, F, Razeti, M, Razeto, A, Reinhold, B, Renshaw, A, Rescigno, M, Riffard, Q, Romani, A, Rossi, B, Rossi, N, Sablone, D, Samoylov, O, Sands, W, Sanfilippo, S, Sant, M, Santorelli, R, Savarese, C, Scapparone, E, Schlitzer, B, Segreto, E, Semenov, D, Shchagin, A, Sheshukov, A, Singh, P, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Stanford, C, Stracka, S, Suffritti, G, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Trinchese, P, Unzhakov, E, Verducci, M, Vishneva, A, Vogelaar, B, Wada, M, Waldrop, T, Wang, H, Wang, Y, Watson, A, Westerdale, S, Wojcik, M, Xiang, X, Xiao, X, Yang, C, Ye, Z, Zhu, C, Zichichi, A, Zuzel, G, Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Araujo, G. R., Asner, D. M., Ave, M. P., Back, H. O., Baldin, B., Batignani, G., Biery, K., Bocci, V., Bon- fini, G., Bonivento, W., Bottino, B., Budano, F., Bussino, S., Cadoni, M., Calaprice, F., Caminata, A., Canci, N., Candela, A., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Chepurnov, A., Cical` o, C., Cifarelli, L., Cocco, A. G., Covone, G., D’Angelo, D., D’Incecco, M., D’Urso, D., Davin, S., De Candia, A., De Cecco, S., De Deo, M., De Filippis, G., De Rosa, G., De Vincenzi, M., Demontis, P., Derbin, A. V., De- voto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Downing, M., Edkins, E., Empl, A., Fan, A., Fiorillo, Giulio, Fomenko, K., Franco, D., Gabriele, F., Gabrieli, A., Galbiati, C., Garcia Abia, P., Giagu, S., Giganti, C., Giovanetti, G. K., Gorchakov, O., Goretti, A. M., Granato, F., Gromov, M., Guan, M., Guardincerri, Y., Gulino, M., Hackett, B. R., Hassanshahi, M. H., Herner, K., Hos- seini, B., Hughes, D., Humble, P., Hungerford, E. V., Ianni, Al., Ianni, An., Ippolito, V., James, I., Johnson, T. N., Kahn, Y., Keeter, K., Kendziora, C. L., Kochanek, I., Koh, G., Korablev, D., Ko- rga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lisanti, M., Lissia, M., Loer, B., Longo, G., Ma, Y., Machado, A. A., Machulin, I. N., Mandarano, A., Mapelli, L., Mari, S. M., Mari- cic, J., Martoff, C. J., Messina, A., Meyers, P. D., Milincic, R., Mishra-Sharma, S., Monte, A., Mor- rocchi, M., Mount, B. J., Muratova, V. N., Musico, P., Nania, R., Navrer Agasson, A., Nozdrina, A. O., Oleinik, A., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paolon, E., Pazzona, F., Pelczar, K., Pelliccia, N., Pesudo, V., Picciau, E., Pocar, A., Pordes, S., Poudel, S. S., Pugachev, D. A., Qian, H., Ragusa, F., Razeti, M., Razeto, A., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Romani, A., Rossi, B., Rossi, N., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Sant, M., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Segreto, E., Semenov, D. A., Shchagin, A., Sheshukov, A., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stanford, C., Stracka, S., Suffritti, G. B., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Trinchese, P., Unzhakov, E. V., Verducci, M., Vishneva, A., Vogelaar, B., Wada, M., Waldrop, T. J., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wojcik, M. M., Wojcik, M., Xiang, X., Xiao, X., Yang, C., Ye, Z., Zhu, C., Zichichi, A., and G. Zuzel.
Subjects: DarkSide
Abstract: New results on the scattering cross-section between dark matter particles and nuclei and electrons are presented. They are obtained using a live- days exposure of 532.4 days from the DarkSide-50 experiment, which is a dual-phase liquid-argon time projection chamber (LAr TPC) installed at Laboratori Nazionali del Gran Sasso (LNGS). In this paper, the DarkSide-20k experiment, a LAr TPC with an active (fiducial) mass of 23 t (20 t) to be built at LNGS, is also reviewed. Thanks to its exceptionally low instrumental background, DarkSide-20k will be able to exclude cross sections between weakly interacting massive particles (WIMPs) and nuclei at 90% confidence level down to 2.8×10−48 cm2 (1.2×10−47 cm2) for a WIMP mass of 100 GeV/c2 (1 TeV/c2 ).
Published: 2018

14. Cryogenic Characterization of FBK RGB-HD SiPMs

Author: C. E. Aalseth, F. Acerbi, P. Agnes, I. F. M. Albuquerque, T. Alexander, A. Alici, A. K. Alton, P. Ampudia, P. Antonioli, S. Arcelli, R. Ardito, I. J. Arnquist, D. M. Asner, H. O. Back, G. Batignani, E. Bertoldo, S. Bettarini, M. G. Bisogni, V. Bocci, A. Bondar, G. Bonfini, W. Bonivento, M. Bossa, B. Bottino, R. Bunker, S. Bussino, A. Buzulutskov, M. Cadeddu, M. Cadoni, A. Caminata, N. Canci, A. Candela, C. Cantini, M. Caravati, M. Cariello, M. Carlini, M. Carpinelli, A. Castellani, S. Catalanotti, V. Cataudella, P. Cavalcante, R. Cereseto, Y. Chen, A. Chepurnov, A. Chiavassa, C. Cicalò, L. Cifarelli, M. Citterio, A. G. Cocco, M. Colocci, S. Corgiolu, G. Covone, P. Crivelli, I. D'Antone, M. D'Incecco, M. D. Da Rocha Rolo, M. Daniel, S. Davini, A. De Candia, S. De Cecco, M. De Deo, G. De Filippis, G. De Guido, G. De Rosa, G. Dellacasa, P. Demontis, A. V. Derbin, A. Devoto, F. Di Eusanio, G. Di Pietro, C. Dionisi, A. Dolgov, I. Dormia, S. Dussoni, A. Empl, A. Ferri, C. Filip, G. Fiorillo, K. Fomenko, D. Franco, G. E. Froudakis, F. Gabriele, A. Gabrieli, C. Galbiati, P. Garcia Abia, A. Gendotti, A. Ghisi, S. Giagu, G. Gibertoni, C. Giganti, M. Giorgi, G. K. Giovanetti, M. L. Gligan, A. Gola, O. Gorchakov, A. M. Goretti, F. Granato, M. Grassi, J. W. Grate, G. Y. Grigoriev, M. Gromov, M. Guan, M. B. B. Guerra, M. Guerzoni, M. Gulino, R. K. Haaland, B. Harrop, E. W. Hoppe, S. Horikawa, B. Hosseini, D. Hughes, P. Humble, E. V. Hungerford, An. Ianni, S. Jimenez Cabre, T. N. Johnson, K. Keeter, C. L. Kendziora, S. Kim, G. Koh, D. Korablev, G. Korga, A. Kubankin, R. Kugathasan, M. Kuss, X. Li, M. Lissia, G. U. Lodi, B. Loer, G. Longo, R. Lussana, L. Luzzi, Y. Ma, A. A. Machado, I. N. Machulin, L. Mais, A. Mandarano, L. Mapelli, M. Marcante, A. Margotti, S. M. Mari, M. Mariani, J. Maricic, M. Marinelli, D. Marras, C. J. Martoff, M. Mascia, A. Messina, P. D. Meyers, R. Milincic, A. Moggi, S. Moioli, S. Monasterio, J. Monroe, A. Monte, M. Morrocchi, W. Mu, V. N. Muratova, S. Murphy, P. Musico, R. Nania, J. Napolitano, A. Navrer Agasson, I. Nikulin, V. Nosov, A. O. Nozdrina, N. N. Nurakhov, A. Oleinik, V. Oleynikov, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, S. Palmas, L. Pandola, E. Pantic, E. Paoloni, G. Paternoster, V. Pavletcov, F. Pazzona, K. Pelczar, L. A. Pellegrini, N. Pelliccia, F. Perotti, R. Perruzza, C. Piemonte, F. Pilo, A. Pocar, D. Portaluppi, S. S. Poudel, D. A. Pugachev, H. Qian, B. Radics, F. Raffaelli, F. Ragusa, K. Randle, M. Razeti, A. Razeto, V. Regazzoni, C. Regenfus, B. Reinhold, A. L. Renshaw, M. Rescigno, Q. Riffard, A. Rivetti, A. Romani, L. Romero, B. Rossi, N. Rossi, A. Rubbia, D. Sablone, P. Salatino, O. Samoylov, W. Sands, M. Sant, R. Santorelli, C. Savarese, E. Scapparone, B. Schlitzer, G. Scioli, E. Sechi, E. Segreto, A. Seifert, D. A. Semenov, S. Serci, A. Shchagin, L. Shekhtman, E. Shemyakina, A. Sheshukov, M. Simeone, P. N. Singh, M. D. Skorokhvatov, O. Smirnov, G. Sobrero, A. Sokolov, A. Sotnikov, C. Stanford, G. B. Suffritti, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, A. Tosi, P. Trinchese, E. V. Unzhakov, A. Vacca, M. Verducci, T. Viant, F. Villa, A. Vishneva, B. Vogelaar, M. Wada, J. Wahl, S. Walker, H. Wang, Y. Wang, A. W. Watson, S. Westerdale, J. Wilhelmi, R. Williams, M. M. Wojcik, S. Wu, X. Xiang, X. Xiao, C. Yang, Z. Ye, F. Zappa, G. Zappalà, C. Zhu, A. Zichichi, G. Zuzel, Aalseth, C. E., Acerbi, F., Agnes, P., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Ampudia, P., Antonioli, P., Arcelli, S., Ardito, R., Arnquist, I. J., Asner, D. M., Back, H. O., Batignani, G., Bertoldo, E., Bettarini, S., Bisogni, M. G., Bocci, V., Bondar, A., Bonfini, G., Bonivento, W., Bossa, M., Bottino, B., Bunker, R., Bussino, S., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Candela, A., Cantini, C., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cereseto, R., Chen, Y., Chepurnov, A., Chiavassa, A., Cicalò, C., Cifarelli, L., Citterio, M., Cocco, A. G., Colocci, M., Corgiolu, S., Covone, G., Crivelli, P., D'Antone, I., D'Incecco, M., Rolo, M. D. Da Rocha, Daniel, M., Davini, S., Candia, A. De, Cecco, S. De, Deo, M. De, Filippis, G. De, De Guido, Giorgia, De Rosa, Gianfranca, Dellacasa, G., Demontis, P., Derbin, A. V., Devoto, A., Eusanio, F. Di, Pietro, G. Di, Dionisi, C., Dolgov, A., Dormia, I., Dussoni, S., Empl, A., Ferri, A., Filip, C., Fiorillo, G., Fomenko, K., Franco, D., Froudakis, G. E., Gabriele, F., Gabrieli, A., Galbiati, C., Abia, P. Garcia, Gendotti, A., Ghisi, A., Giagu, S., Gibertoni, G., Giganti, C., Giorgi, M., Giovanetti, G. K., Gligan, M. L., Gola, A., Gorchakov, O., Goretti, A. M., Granato, F., Grassi, M., Grate, J. W., Grigoriev, G. Y., Gromov, M., Guan, M., Guerra, M. B. B., Guerzoni, M., Gulino, M., Haaland, R. K., Harrop, B., Hoppe, E. W., Horikawa, S., Hosseini, B., Hughes, D., Humble, P., Hungerford, E. V., Ianni, An., Cabre, S. Jimenez, Johnson, T. N., Keeter, K., Kendziora, C. L., Kim, S., Koh, G., Korablev, D., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Li, X., Lissia, M., Lodi, G. U., Loer, B., Longo, G., Lussana, R., Luzzi, L., Ma, Y., Machado, A. A., Machulin, I. N., Mais, L., Mandarano, A., Mapelli, L., Marcante, M., Margotti, A., Mari, S. M., Mariani, M., Maricic, J., Marinelli, M., Marras, D., Martoff, C. J., Mascia, M., Messina, A., Meyers, P. D., Milincic, R., Moggi, A., Moioli, S., Monasterio, S., Monroe, J., Monte, A., Morrocchi, M., Mu, W., Muratova, V. N., Murphy, S., Musico, P., Nania, R., Napolitano, J., Agasson, A. Navrer, Nikulin, I., Nosov, V., Nozdrina, A. O., Nurakhov, N. N., Oleinik, A., Oleynikov, V., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pavletcov, V., Pazzona, F., Pelczar, K., Pellegrini, L. A., Pelliccia, N., Perotti, F., Perruzza, R., Piemonte, C., Pilo, F., Pocar, A., Portaluppi, D., Poudel, S. S., Pugachev, D. A., Qian, H., Radics, B., Raffaelli, F., Ragusa, F., Randle, K., Razeti, M., Razeto, A., Regazzoni, V., Regenfus, C., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Rivetti, A., Romani, A., Romero, L., Rossi, B., Rossi, N., Rubbia, A., Sablone, D., Salatino, P., Samoylov, O., Sands, W., Sant, M., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Sechi, E., Segreto, E., Seifert, A., Semenov, D. A., Serci, S., Shchagin, A., Shekhtman, L., Shemyakina, E., Sheshukov, A., Simeone, M., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sobrero, G., Sokolov, A., Sotnikov, A., Stanford, C., Suffritti, G. B., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Tosi, A., Trinchese, P., Unzhakov, E. V., Vacca, A., Verducci, M., Viant, T., Villa, F., Vishneva, A., Vogelaar, B., Wada, M., Wahl, J., Walker, S., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wilhelmi, J., Williams, R., Wojcik, M. M., Wu, S., Xiang, X., Xiao, X., Yang, C., Ye, Z., Zappa, F., Zappalà, G., Zhu, C., Zichichi, A., Zuzel, G., AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), DarkSide, Aalseth, C, Acerbi, F, Agnes, P, Albuquerque, I, Alexander, T, Alici, A, Alton, A, Ampudia, P, Antonioli, P, Arcelli, S, Ardito, R, Arnquist, I, Asner, D, Back, H, Batignani, G, Bertoldo, E, Bettarini, S, Bisogni, M, Bocci, V, Bondar, A, Bonfini, G, Bonivento, W, Bossa, M, Bottino, B, Bunker, R, Bussino, S, Buzulutskov, A, Cadeddu, M, Cadoni, M, Caminata, A, Canci, N, Candela, A, Cantini, C, Caravati, M, Cariello, M, Carlini, M, Carpinelli, M, Castellani, A, Catalanotti, S, Cataudella, V, Cavalcante, P, Cereseto, R, Chen, Y, Chepurnov, A, Chiavassa, A, Cicalò, C, Cifarelli, L, Citterio, M, Cocco, A, Colocci, M, Corgiolu, S, Covone, G, Crivelli, P, D'Antone, I, D'Incecco, M, Rolo, M, Daniel, M, Davini, S, Candia, A, Cecco, S, Deo, M, Filippis, G, Guido, G, Rosa, G, Dellacasa, G, Demontis, P, Derbin, A, Devoto, A, Eusanio, F, Pietro, G, Dionisi, C, Dolgov, A, Dormia, I, Dussoni, S, Empl, A, Ferri, A, Filip, C, Fiorillo, G, Fomenko, K, Franco, D, Froudakis, G, Gabriele, F, Gabrieli, A, Galbiati, C, Abia, P, Gendotti, A, Ghisi, A, Giagu, S, Gibertoni, G, Giganti, C, Giorgi, M, Giovanetti, G, Gligan, M, Gola, A, Gorchakov, O, Goretti, A, Granato, F, Grassi, M, Grate, J, Grigoriev, G, Gromov, M, Guan, M, Guerra, M, Guerzoni, M, Gulino, M, Haaland, R, Harrop, B, Hoppe, E, Horikawa, S, Hosseini, B, Hughes, D, Humble, P, Hungerford, E, Ianni, A, Cabre, S, Johnson, T, Keeter, K, Kendziora, C, Kim, S, Koh, G, Korablev, D, Korga, G, Kubankin, A, Kugathasan, R, Kuss, M, Li, X, Lissia, M, Lodi, G, Loer, B, Longo, G, Lussana, R, Luzzi, L, Ma, Y, Machado, A, Machulin, I, Mais, L, Mandarano, A, Mapelli, L, Marcante, M, Margotti, A, Mari, S, Mariani, M, Maricic, J, Marinelli, M, Marras, D, Martoff, C, Mascia, M, Messina, A, Meyers, P, Milincic, R, Moggi, A, Moioli, S, Monasterio, S, Monroe, J, Monte, A, Morrocchi, M, Mu, W, Muratova, V, Murphy, S, Musico, P, Nania, R, Napolitano, J, Agasson, A, Nikulin, I, Nosov, V, Nozdrina, A, Nurakhov, N, Oleinik, A, Oleynikov, V, Orsini, M, Ortica, F, Pagani, L, Pallavicini, M, Palmas, S, Pandola, L, Pantic, E, Paoloni, E, Paternoster, G, Pavletcov, V, Pazzona, F, Pelczar, K, Pellegrini, L, Pelliccia, N, Perotti, F, Perruzza, R, Piemonte, C, Pilo, F, Pocar, A, Portaluppi, D, Poudel, S, Pugachev, D, Qian, H, Radics, B, Raffaelli, F, Ragusa, F, Randle, K, Razeti, M, Razeto, A, Regazzoni, V, Regenfus, C, Reinhold, B, Renshaw, A, Rescigno, M, Riffard, Q, Rivetti, A, Romani, A, Romero, L, Rossi, B, Rossi, N, Rubbia, A, Sablone, D, Salatino, P, Samoylov, O, Sands, W, Sant, M, Santorelli, R, Savarese, C, Scapparone, E, Schlitzer, B, Scioli, G, Sechi, E, Segreto, E, Seifert, A, Semenov, D, Serci, S, Shchagin, A, Shekhtman, L, Shemyakina, E, Sheshukov, A, Simeone, M, Singh, P, Skorokhvatov, M, Smirnov, O, Sobrero, G, Sokolov, A, Sotnikov, A, Stanford, C, Suffritti, G, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Tosi, A, Trinchese, P, Unzhakov, E, Vacca, A, Verducci, M, Viant, T, Villa, F, Vishneva, A, Vogelaar, B, Wada, M, Wahl, J, Walker, S, Wang, H, Wang, Y, Watson, A, Westerdale, S, Wilhelmi, J, Williams, R, Wojcik, M, Wu, S, Xiang, X, Xiao, X, Yang, C, Ye, Z, Zappa, F, Zappalà, G, Zhu, C, Zichichi, A, Zuzel, G, Bussino, Severino Angelo Maria, Da Rocha Rolo, M. D., De Candia, A., De Cecco, S., De Deo, M., De Filippis, G., De Guido, G., De Rosa, G., Di Eusanio, F., Di Pietro, G., Garcia Abia, P., Ianni, A. n., Jimenez Cabre, S., Mari, Stefano Maria, Navrer Agasson, A., Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Cicalã², C., G. De, Filippi, Guido, G. De, G. De, Rosa, and Zappalã , G.
Subjects: visible and IR photons, Physics - Instrumentation and Detectors, data acquisition, SiPMs, 1ST PROTOTYPES, 01 natural sciences, Photon detectors forUV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs etc), etc), Data acquisition, EMCCDs etc), APDs, Photon detectors for UV, visible and IR photons (solid-state), Instrumentation, Mathematical Physics, Physics, EBCCDs, Si-PMTs, Instrumentation and Detectors (physics.ins-det), Cryogenic detectors, Photon detectors for UV, visible and IR photons (solid-state), G-APDs, Physics - Instrumentation and Detector, performance, Dark current, noise, ionization: yield, Dark matter, quenching, High density, Cryogenic detector, FOS: Physical sciences, DarkSide, Noise (electronics), programming, Optics, 0103 physical sciences, Analysis software, photomultiplier: silicon, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], (solid-state) (PIN diodes, visible and IR photons (solid-state) (PIN diodes, 010306 general physics, SILICON, 010308 nuclear & particles physics, business.industry, CCDs, dark matter: detector, ITC-IRST, (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs, time projection chamber: liquid argon, (solid-state), Photon detectors forUV, EMCCDs, RGB color model, business
Abstract: International audience; We report on the cryogenic characterization of Red Green Blue - High Density (RGB-HD) SiPMs developed at Fondazione Bruno Kessler (FBK) as part of the DarkSide program of dark matter searches with liquid argon time projection chambers. A cryogenic setup was used to operate the SiPMs at varying temperatures and a custom data acquisition system and analysis software were used to precisely characterize the primary dark noise, the correlated noise, and the gain of the devices. We demonstrate that FBK RGB-HD SiPMs with low quenching resistance (RGB-HD-LRq) can be operated from 40 K to 300 K with gains in the range 10(5) to 10(6) and noise rates at a level of around 1 Hz/mm(2).
Published: 2017
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15. 128 Interest in Erectile Dysfunction Treatment Is Associated with National Economic Indicators: a Google Trends analysis

Author: J. Wren, A. Desai, M.S. Patel, Nelson E. Bennett, J. Lai, Robert E. Brannigan, Joshua A. Halpern, M. Hudnall, M. K. Keeter, and A.B. Weiner
Subjects: Gerontology, Psychiatry and Mental health, Endocrinology, Erectile dysfunction, Reproductive Medicine, Economic indicator, business.industry, Urology, Endocrinology, Diabetes and Metabolism, Medicine, business, medicine.disease
Published: 2020
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16. Barriers and Facilitators toward HIV Testing and Health Perceptions among African-American Men Who Have Sex with Women at a South Side Chicago Community Health Center: A Pilot Study

Author: Karriem Watson, Ian J. Cooke, Marcus Murray, Mary K. Keeter, Rohan D. Jeremiah, Courtney M.P. Hollowell, Gregory L. Jordan, Nataka J. Moore, Adam B. Murphy, and Michael A. Dixon
Published: 2017
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17. The DarkSide Experiment: Present Status and Future

Author: S. Odrowski, M. Gromov, E. Segreto, D. Sablone, Peter Daniel Meyers, D. Rountree, Y. Suvorov, S. Westerdale, E. V. Unzhakov, C. Stanford, J. Brodsky, S. M. Mari, P. Saggese, A. M. Goretti, A. S. Chepurnov, S. Walker, Andrea Ianni, T. N. Johnson, E. V. Hungerford, Mariano Cadoni, Hui Wang, M. Guan, L. Pagani, Q. Riffard, Thomas Alexander, Maria Rescigno, A. Devoto, A. Sotnikov, M. D. Skorokhvatov, N. Rossi, A. Navrer Agasson, L. Grandi, F. Di Eusanio, A. K. Alton, Jim Napolitano, A. Tonazzo, M. Carlini, H. O. Back, M. Orsini, I. N. Machulin, Marcello Lissia, K. Biery, Yanchu Wang, P. N. Singh, Paolo Lombardi, J. Tatarowicz, G. Fiorillo, N. Canci, Aldo Romani, G. Di Pietro, Giovanni Covone, R. Saldanha, K. Fomenko, N. Pelliccia, B. J. Mount, J. Maricic, B. Reinhold, P. Agnes, S. Pordes, Marco Pallavicini, D. Korablev, A. Zec, M. Cariello, A. V. Derbin, F. Budano, D. M. Asner, B. Baldin, D. D'Angelo, M. De Vincenzi, A. L. Renshaw, A. Brigatti, G. Testera, D. Franco, K. Randle, K. Pelczar, Cristiano Galbiati, Irina James, D. Semenov, R. Milincic, M. D'Incecco, W. Zhong, S. De Cecco, G. Forster, C. J. Martoff, D. Hughes, M. Caravati, Anselmo Meregaglia, H. Qian, C. Dionisi, C. L. Kendziora, J. Wilhelmi, Chung-Yao Yang, Monica Verducci, G. Bonfini, A. Vishneva, Ivone F. M. Albuquerque, G. K. Giovanetti, B. R. Hackett, P. Cavalcante, A. Empl, M. Wada, W. Bonivento, M. De Deo, S. Davini, Frank Calaprice, X. Xiang, Y. Guardincerri, B. Vogelaar, M. Razeti, S. Catalanotti, S. Bussino, J. D. Miller, Paul H. Humble, E. Pantic, C. Savarese, K. Keeter, C. Giganti, Laura Cadonati, A. S. Kubankin, G. Zuzel, A. G. Cocco, Stefano Giagu, Giuseppe Longo, A. Razeto, R. Tartaglia, Al. Ianni, Xiaoyuan Li, E. Edkins, D. Montanari, V. Bocci, Fausto Ortica, Cécile Jollet, A. Candela, B. Loer, B. Schlitzer, C. Zhu, F. Gabriele, G. Korga, Gioacchino Ranucci, P. Trinchese, F. Granato, E. Shields, K. Herner, M. Cadeddu, C. Cicalo, Paolo Musico, A. Fan, D. A. Pugachev, V. N. Muratova, B. Bottino, A. Monte, A. Pocar, Jilei Xu, O. Smirnov, S. Parmeggiano, Marcin Wójcik, W. Sands, Y. Q. Ma, L. Marini, M. Bossa, B. Rossi, G. Koh, Alan Watson, A. Mandarano, Xiang Xiao, Zuzel, G., Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Asner, D. M., Back, H. O., Baldin, B., Biery, K., Bocci, V., Bonfini, G., Bonivento, W., Bossa, M., Bottino, B., Brigatti, A., Brodsky, J., Budano, F., Bussino, S., Cadeddu, M., Cadonati, L., Cadoni, M., Calaprice, F., Canci, N., Candela, A., Caravati, M., Cariello, M., Carlini, M., Catalanotti, S., Cavalcante, P., Chepurnov, A., Cicalo, C., Cocco, A. G., Covone, G., D'Angelo, D., D'Incecco, M., Davini, S., De Cecco, S., De Deo, M., De Vincenzi, M., Derbin, A., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Edkins, E., Empl, A., Fan, A., Fiorillo, G., Fomenko, K., Forster, G., Franco, D., Gabriele, F., Galbiati, C., Giagu, S., Giganti, C., Giovanetti, G. K., Goretti, A. M., Granato, F., Grandi, L., Gromov, M., Guan, M., Guardincerri, Y., Hackett, B. R., Herner, K., Hughes, D., Humble, P., Hungerford, E. V., Ianni, A. L., Ianni, A. N., James, I., Johnson, T. N., Jollet, C., Keeter, K., Kendziora, C. L., Koh, G., Korablev, D., Korga, G., Kubankin, A., Li, X., Lissia, M., Loer, B., Lombardi, P., Longo, G., Ma, Y., Machulin, I. N., Mandarano, Marina, Mari, S. M., Maricic, J., Marini, L., Martoff, C. J., Meregaglia, A., Meyers, P. D., Milincic, R., Miller, J. D., Montanari, D., Monte, A., Mount, B. J., Muratova, V. N., Musico, P., Napolitano, J., Agasson, A. Navrer, Odrowski, S., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pantic, E., Parmeggiano, S., Pelczar, K., Pelliccia, N., Pocar, A., Pordes, S., Pugachev, D. A., Qian, H., Randle, K., Ranucci, G., Razeti, M., Razeto, A., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Romani, A., Rossi, B., Rossi, N., Rountree, D., Sablone, D., Saggese, P., Saldanha, R., Sands, W., Savarese, C., Schlitzer, B., Segreto, E., Semenov, D. A., Shields, E., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stanford, C., Suvorov, Y., Tartaglia, R., Tatarowicz, J., Testera, G., Tonazzo, A., Trinchese, P., Unzhakov, E. V., Verducci, M., Vishneva, A., Vogelaar, B., Wada, M., Walker, S., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wilhelmi, J., Wojcik, M. M., Xiang, X. I., Xiao, X., Xu, J., Yang, C., Zec, A., Zhong, W., Zhu, C., Budano, Federico, Bussino, Severino Angelo Maria, DE VINCENZI, Mario, Eusanio, F. Di, Pietro, G. Di, Ianni, A. l., Ianni, A. n., James, Irina, Mandarano, A., Mari, Stefano Maria, Xiang, X. i., AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), and Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)
Subjects: WIMP nucleon: scattering, History, Physics::Instrumentation and Detectors, Dark matter, WIMP: mass, chemistry.chemical_element, talk: Moscow 2016/10/10, DarkSide, 4/3, spin: dependence, WIMP: dark matter, channel cross section: upper limit, 01 natural sciences, argon: target, dark matter, Education, Nuclear physics, Physics and Astronomy (all), WIMP, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, Argon, Time projection chamber, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, WIMP nucleon: cross section, time projection chamber: liquid argon, Gran Sasso, Computer Science Applications, Elementary particle physics, Double phase, chemistry, Liquid argon, High Energy Physics::Experiment, MATTER, experimental results
Abstract: International audience; DarkSide is a multi-stage program devoted to direct searches of Dark Matter particles with detectors based on double phase liquid Argon Time Projection Chamber. The DarkSide-50 setup is running underground at the Laboratori Nazionali del Gran Sasso. First it was operated with Atmospheric Argon and during that run (1422 ± 67) kg×d of truly background-free exposure has been accumulated. Obtained data made it possible to set a 90% C.L. upper limit on the WIMP-nucleon cross section of 6.1 × 10(−)(44) cm(2) (for a WIMP mass of 100 GeV/c(2)). Presently the detector is filled with Underground Argon, which is depleted in (39)Ar by a factor of (1.4 ± 0.2)×10(3) with respect to Atmospheric Argon. Acquired so far (2616 ± 43) kg×d (71 live days) in combination with the data from the Atmospheric Argon run give us the 90% C.L. upper limit on the WIMP-nucleon spin-independent cross section of 2.0×10(−)(44) cm(2) for a WIMP mass of 100 GeV/c(2). Up to date this is the best limit obtained with an argon target.
Published: 2017
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18. The electronics and data acquisition system for the DarkSide-50 veto detectors

Author: V. N. Muratova, B. Bottino, E. V. Unzhakov, C. Stanford, G. Koh, B. Baldin, J. Brodsky, J. Wilhelmi, S. De Cecco, P. Saggese, Chung-Yao Yang, C. Savarese, A. Tonazzo, S. D. Rountree, M. Montuschi, Paolo Lombardi, S. Davini, C. J. Martoff, M. Carlini, Peter Daniel Meyers, Yufeng Wang, M. D. Skorokhvatov, L. Grandi, P. N. Singh, M. Gromov, A. Mandarano, A. Kubankin, M. Guan, Y. Suvorov, G. Zuzel, S. Luitz, E. Segreto, A. Candela, S. Westerdale, G. Testera, A. M. Goretti, A. S. Chepurnov, F. Budano, V. V. Kobychev, Mariano Cadoni, E. Pantic, P. J. Mosteiro, A. K. Alton, A. Sotnikov, Aldo Ianni, B. Reinhold, B. R. Hackett, A. Empl, F. Gabriele, E. Edkins, B. J. Mount, A. Zec, L. Agostino, H. Cao, D. Semenov, M. Orsini, J. Maricic, Hui Wang, R. B. Vogelaar, M. De Vincenzi, N. Canci, Caoxiang Zhu, M. De Deo, R. Tartaglia, D. Montanari, Ivone F. M. Albuquerque, A. L. Renshaw, A. Devoto, Griffin Foster, P. Cavalcante, Samuele Sangiorgio, M. Cadeddu, Stefano Maria Mari, J. Tatarowicz, T. Alexander, S. Odrowski, T. Miletic, D. Franco, Sandra Zavatarelli, W. Zhong, C. Giganti, K. Arisaka, K. Herner, R. Saldanha, Fausto Ortica, G. Fiorillo, L. Crippa, K. Fomenko, M. Wada, F. Calaprice, M. D'Incecco, Stuart Derek Walker, A. Vishneva, K. Randle, Anselmo Meregaglia, X. Li, H. Qian, Irina James, Y. Guardincerri, M. E. Monzani, A. Pocar, K. Keeter, A. Monte, Jilei Xu, Q. Riffard, S. Parmeggiano, D. Korablev, A. Brigatti, Jim Napolitano, D. Sablone, N. Pelliccia, X. Xiang, E. Shields, Gioacchino Ranucci, Y. Q. Ma, L. Marini, M. Bossa, B. Rossi, Alan Watson, K. Biery, A. Fan, D. A. Pugachev, Oleg Smirnov, S. Catalanotti, A. G. Cocco, F. Di Eusanio, Aldo Romani, P. Agnes, A. Razeto, P. Musico, W. Sands, M. Cariello, Andrea Ianni, A. V. Derbin, K. Pelczar, Cristiano Galbiati, C. L. Kendziora, M. M. Wojcik, G. Korga, F. Granato, Ann E. Nelson, I. N. Machulin, N. Rossi, Marco Pallavicini, D. D'Angelo, E. Hungerford, R. Milincic, S. Pordes, Henning O. Back, G. Bonfini, Cécile Jollet, J. Yoo, G. Di Pietro, Giovanni Covone, Severino Angelo Maria Bussino, L. Pagani, Marcello Lissia, P. Trinchese, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Centre Hospitalier Universitaire de Nice (CHU de Nice), Biomécanique et Bioingénierie (BMBI), Université de Technologie de Compiègne (UTC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Stanford University [Stanford], Max-Planck-Institut für Kernphysik (MPIK), Max-Planck-Gesellschaft, Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Departamento de Engenharia Elétrica [Minas Gerais] (DEE - UFMG), Universidade Federal de Minas Gerais, Rhodes University, inconnu, Inconnu, Key Lab of Computer System and Architecture, Institute of Computing Technology [Beijing] (ICT), Chinese Academy of Sciences [Beijing] (CAS), Institut Européen des membranes (IEM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS), Agnes, P., Agostino, L., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Arisaka, K., Back, H. O., Baldin, B., Biery, K., Bonfini, G., Bossa, M., Bottino, B., Brigatti, A., Brodsky, J., Budano, F., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Canci, N., Candela, A., Cao, H., Cariello, M., Carlini, M., Catalanotti, S., Cavalcante, P., Chepurnov, A., Cocco, A. G., Covone, G., Crippa, L., D'Angelo, D., D'Incecco, M., Davini, S., Dececco, S., De Deo, M., De Vincenzi, M., Derbin, A., Devoto, A., Di Eusanio, F., Di Pietro, G., Edkins, E., Empl, A., Fan, A., Fiorillo, G., Fomenko, K., Foster, G., Franco, D., Gabriele, F., Galbiati, C., Giganti, C., Goretti, A. M., Granato, F., Grandi, L., Gromov, M., Guan, M., Guardincerri, Y., Hackett, B. R., Herner, K. R., Hungerford, E. V., Ianni, Aldo, Ianni, Andrea, James, I., Jollet, C., Keeter, K., Kendziora, C. L., Kobychev, V., Koh, G., Korablev, D., Korga, G., Kubankin, A., Li, X., Lissia, M., Lombardi, P., Luitz, S., Ma, Y., Machulin, I. N., Mandarano, A., Mari, S. M., Maricic, J., Marini, L., Martoff, C. J., Meregaglia, A., Meyers, P. D., Miletic, T., Milincic, R., Montanari, D., Monte, A., Montuschi, M., Monzani, M. E., Mosteiro, P., Mount, B. J., Muratova, V. N., Musico, P., Napolitano, J., Nelson, A., Odrowski, S., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pantic, E., Parmeggiano, S., Pelczar, K., Pelliccia, N., Pocar, A., Pordes, S., Pugachev, D. A., Qian, H., Randle, K., Ranucci, G., Razeto, A., Reinhold, B., Renshaw, A. L., Riffard, Q., Romani, A., Rossi, B., Rossi, N., Rountree, S. D., Sablone, D., Saggese, P., Saldanha, R., Sands, W., Sangiorgio, S., Savarese, C., Segreto, E., Semenov, D. A., Shields, E., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stanford, C., Suvorov, Y., Tartaglia, R., Tatarowicz, J., Testera, G., Tonazzo, A., Trinchese, P., Unzhakov, E. V., Vishneva, A., Vogelaar, R. B., Wada, M., Walker, S., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wilhelmi, J., Wojcik, M. M., Xiang, X., Xu, J., Yang, C., Yoo, J., Zavatarelli, S., Zec, A., Zhong, W., Zhu, C., Zuzel, G., Budano, Federico, Bussino, Severino Angelo Maria, DE VINCENZI, Mario, James, Irina, and Mari, Stefano Maria
Subjects: Physics - Instrumentation and Detectors, gas and liquid scintillators), architecture, Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, Scintillator, algorithms, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Data acquisition, Front-end electronics for detector readout, 0103 physical sciences, hardware, Neutron, Detector control systems (detector and experiment monitoring and slow control systems, 010306 general physics, Instrumentation, Cherenkov radiation, ComputingMilieux_MISCELLANEOUS, Mathematical Physics, Physics, [PHYS]Physics [physics], Time projection chamber, Data acquisition concepts, Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators), Detector control systems (detector and experiment monitoring and slow control systems, architecture, hardware, algorithms, databases), 010308 nuclear & particles physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), scintillation and light emission processes (solid, Weakly interacting massive particles, Scintillators, High Energy Physics::Experiment, databases), [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: International audience; DarkSide-50 is a detector for dark matter candidates in the form of weakly interacting massive particles. It utilizes a liquid argon time projection chamber for the inner main detector, surrounded by a liquid scintillator veto (LSV) and a water Cherenkov veto detector (WCV). The LSV and WCV act as the neutron and cosmogenic muon veto detectors for DarkSide-50. This paper describes the electronics and data acquisition system used for these two detectors. The system is made of a custom built front end electronics and commercial National Instruments high speed digitizers. The front end electronics, the DAQ, and the trigger system have been used to acquire data in the form of zero-suppressed waveform samples from the 110 PMTs of the LSV and the 80 PMTs of the WCV. The veto DAQ system has proven its performance and reliability. This electronics and DAQ system can be scaled and used as it is for the veto of the next generation DarkSide-20k detector
Published: 2016
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19. Journal of Instrumentation

Author: 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, B. 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, C. Cicalò, A.G. 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, S. Giagu, C. Giganti, G.K. Giovanetti, A.M. Goretti, F. Granato, L. Grandi, M. Gromov, M. Guan, Y. Guardincerri, B.R. 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, A.A. Machado, I.N. 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.N. 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.A. Semenov, E. Shields, P.N. Singh, M.D. Skorokhvatov, O. Smirnov, A. Sotnikov, C. Stanford, Y. Suvorov, R. Tartaglia, J. Tatarowicz, 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, Xi. Xiang, X. Xiao, J. Xu, C. Yang, A. Zec, W. Zhong, C. Zhu, G. Zuzel, AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Pluridisciplinaire Hubert Curien ( IPHC ), Université de Strasbourg ( UNISTRA ) -Centre National de la Recherche Scientifique ( CNRS ), DarkSide, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Physics, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Asner, D. M., Back, H. O., Baldin, B., Biery, K., Bocci, V., Bonfini, G., Bonivento, W., Bossa, M., Bottino, B., Brigatti, A., Brodsky, J., Budano, F., Bussino, S., Cadeddu, M., Cadonati, L., Cadoni, M., Calaprice, F., Canci, N., Candela, A., Caravati, M., Cariello, M., Carlini, M., Catalanotti, S., Cavalcante, P., Chepurnov, A., Cicalo, C., Cocco, A. G., D'Angelo, D., D'Incecco, M., Davini, S., De Cecco, S., De Deo, M., De Vincenzi, M., Derbin, A., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Edkins, E., Empl, A., Fan, A., Fiorillo, G., Fomenko, K., Forster, G., Franco, D., Gabriele, F., Galbiati, C., Giagu, S., Giganti, C., Giovanetti, G. K., Goretti, A. M., Granato, F., Grandi, L., Gromov, M., Guan, M., Guardincerri, Y., Hackett, B. R., Herner, K., Hughes, D., Humble, P., Hungerford, E. V., Ianni, Al., Ianni, An., James, I., Johnson, T. N., Jollet, C., Keeter, K., Kendziora, C. L., Koh, G., Korablev, D., Korga, G., Kubankin, A., Li, X., Lissia, M., Loer, B., Lombardi, P., Longo, G., Ma, Y., Machado, A. A., Machulin, I. N., Mandarano, A., Mari, S. M., Maricic, J., Marini, L., Martoff, C. J., Meregaglia, A., Meyers, P. D., Milincic, R., Miller, J. D., Montanari, D., Monte, A., Mount, B. J., Muratova, V. N., Musico, P., Napolitano, J., Agasson, A. Navrer, Odrowski, S., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pantic, E., Parmeggiano, S., Pelczar, K., Pelliccia, N., Pocar, A., Pordes, S., Pugachev, D. A., Qian, H., Randle, K., Ranucci, G., Razeti, M., Razeto, A., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Romani, A., Rossi, B., Rossi, N., Rountree, D., Sablone, D., Saggese, P., Saldanha, R., Sands, W., Savarese, C., Schlitzer, B., Segreto, E., Semenov, D. A., Shields, E., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stanford, C., Suvorov, Y., Tartaglia, R., Tatarowicz, J., Testera, G., Tonazzo, A., Trinchese, P., Unzhakov, E. V., Verducci, M., Vishneva, A., Vogelaar, B., Wada, M., Walker, S., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wilhelmi, J., Wojcik, M. M., Xiang, Xi., Xiao, X., Xu, J., Yang, C., Zec, A., Zhong, W., Zhu, C., Zuzel, G., Covone, G., Navrer Agasson, A., and Semenova, D. A.
Subjects: axions, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Detector alignment and calibration methods (lasers, sources, particle-beams), scintillation counter: liquid, remote operation, 01 natural sciences, Dark Matter detectors (WIMPs, axions, etc.), Instrumentation, Mathematical Physics, Low-background detectors, etc.), hardware, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Physics, Radioactive source calibration, Time projection chamber, Detector, Instrumentation and Detectors (physics.ins-det), particle-beams), Physics - Instrumentation and Detector, organic compounds, sources, Fabrication, WIMP, Dark matter, Noble liquid detectors, FOS: Physical sciences, fabrication, Scintillator, Optics, 0103 physical sciences, Calibration, Neutron, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Dark Matter detectors (WIMPs, detector: design, 010308 nuclear & particles physics, business.industry, dark matter: detector, calibration, time projection chamber: liquid argon, Liquid scintillators, calibration device, insertion device, Detector alignment and calibration methods (lasers, efficiency, Neutron source, business
Abstract: This paper describes the design, fabrication, commissioning and use of a CALibration source Insertion System (CALIS) in the DarkSide-50 direct dark matter search experiment. CALIS deploys radioactive sources into the liquid scintillator veto to characterize the detector response and detection efficiency of the DarkSide-50 Liquid Argon Time Projection Chamber, and the surrounding 30 t organic liquid scintillator neutron veto. It was commissioned in September 2014 and has been used successfully in several gamma and neutron source campaigns since then. A description of the hardware and an excerpt of calibration analysis results are given below., 21 pages, 11 figures
Published: 2016
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20. Point Defects in Pb-, Bi-, and In-Doped CdZnTe Detectors: Deep-Level Transient Spectroscopy (DLTS) Measurements

Author: V. Carcelen, Giuseppe S. Camarda, Jan Franc, Yonggang Cui, Aleksey E. Bolotnikov, Rene G. Rodriguez, K. Keeter, Ge Yang, Zhong-Ming Li, Rubi Gul, Ralph B. James, Anwar Hossain, and Kihyun Kim
Subjects: Deep-level transient spectroscopy, Materials science, Solid-state physics, Dopant, Doping, Analytical chemistry, chemistry.chemical_element, Condensed Matter Physics, Acceptor, Crystallographic defect, Electronic, Optical and Magnetic Materials, chemistry, Materials Chemistry, Electrical and Electronic Engineering, Spectroscopy, Indium
Abstract: We studied, by current deep-level transient spectroscopy (I-DLTS), point defects induced in CdZnTe detectors by three dopants: Pb, Bi, and In. Pb-doped CdZnTe detectors have a new acceptor trap at around 0.48 eV. The absence of a VCd trap suggests that all Cd vacancies are compensated by Pb interstitials after they form a deep-acceptor complex [[PbCd]+-V Cd 2− ]−. Bi-doped CdZnTe detectors had two distinct traps: a shallow trap at around 36 meV and a deep donor trap at around 0.82 eV. In detectors doped with In, we noted three well-known traps: two acceptor levels at around 0.18 eV (A-centers) and 0.31 eV (VCd), and a deep trap at around 1.1 eV.
Published: 2011
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21. Point Defects in CdZnTe Crystals Grown by Different Techniques

Author: Ralph B. James, H. K. Kim, Rubi Gul, Aleksey E. Bolotnikov, Zhong-Ming Li, G. Gu, K. Keeter, and Rene G. Rodriguez
Subjects: Materials science, Solid-state physics, business.industry, Materials Chemistry, Optoelectronics, Crystal growth, Electrical and Electronic Engineering, Condensed Matter Physics, business, Spectroscopy, Crystallographic defect, Transient spectroscopy, Electronic, Optical and Magnetic Materials
Abstract: We studied, by current deep-level transient spectroscopy (I-DLTS), point defects in CdZnTe detectors grown by different techniques. We identified 12 different traps with energy levels from 7 meV to 1.1 eV. Although the levels of most of the identified defects were independent of the crystal growth techniques, nevertheless there were some associated differences in the traps’ energies and densities.
Published: 2011
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22. Ultra-low measurements of 40K for SNO+ utilizing accelerator mass spectrometry – Proof of principle

Author: E. Tatar, J. Heise, M. Bowers, C. Taylor, K. Keeter, Philippe Collon, J. Baker, Wenting Lu, Donald Robertson, and C. Schmitt
Subjects: Idaho National Laboratory, Physics, Nuclear and High Energy Physics, Sudbury Neutrino Observatory, Physics::Instrumentation and Detectors, Solar neutrino, Detector, Scintillator, Nuclear physics, Neutrino detector, High Energy Physics::Experiment, Neutrino, Instrumentation, Accelerator mass spectrometry
Abstract: To increase sensitivity, experiments studying rare processes such as neutrino and dark matter interactions are forced underground to achieve the ultra-low levels of radioactive background they require. In conjunction with this, Accelerator Mass Spectrometry (AMS) can be used to help select the ultra-high purity and low background required for detector materials. One project interested in such techniques is SNO+ (Sudbury Neutrino Observatory), which proposes modifying the existing SNO detector set-up to study low-energy solar neutrinos as well as other neutrino properties via double-beta decay using a liquid scintillator called linear alkylbenzene (LAB). Due to the lower energy threshold of the proposed set-up, the present materials need to be re-evaluated for 40K concentrations. Ultra-pure copper cathodes and sample materials to be used in the new detector system were prepared at Idaho State University and Idaho National Laboratory. These materials are being tested for levels of 40K at the Notre Dame AMS facility. Proof of principle and results from the first set of measurements are discussed in this paper.
Published: 2010
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23. DarkSide-50, a background free experiment for dark matter searches

Author: P. Agnes, 1 T. Alexander, 2 A. Alton, 3 K. Arisaka, 4 H. O. Back, 5 B. Baldin, 6 K. Biery, 6 G. Bonfini, 7 M. Bossa, 8 A. Brigatti, 9 J. Brodsky, 5 F. Budano, 10 L. Cadonati, 2 F. Calaprice, 5 N. Canci, 4 A. Candela, 7 H. Cao, 5 M. Cariello, 11 P. Cavalcante, 7 A. Chavarria, 12 A. Chepurnov, 13 A. G. Cocco, 14 L. Crippa, 9 D. D’Angelo, 9 M. D’Incecco, 7 S. Davini, 15 M. De Deo, 7 A. Derbin, 16 A. Devoto, 17 F. Di Eusanio, 5 G. Di Pietro, 9 E. Edkins, 18 A. Empl, 15 A. Fan, 4 G. Fiorillo, 14 K. Fomenko, 19 G. Forster, 2 D. Franco, 1 F. Gabriele, 7 C. Galbiati, 5 A. Goretti, 5 L. Grandi, 12 M. Gromov, 13 M. Y. Guan, 20 Y. Guardincerri, 6 B. Hackett, 18 K. Herner, 6 E. V. Hungerford, 15 A.l. Ianni, 7 A.n. Ianni, 5 C. Jollet, 21 K. Keeter, 22 C. Kendziora, 6 S. Kidner, a. V. Kobychev, 24 G. Koh, 5 D. Korablev, 19 G. Korga, 15 A. Kurlej, 2 P. X. Li, 20 B. Loer, 5 P. Lombardi, 9 C. Love, 25 L. Ludhova, 9 S. Luitz, 26 Y. Q. Ma, 20 I. Machulin, 28 A. Mandarano, 10 J. Maricic, 18 L. Marini, 10 C. J. Martoff, 25 A. Meregaglia, 21 E. Meroni, 9 P. D. Meyers, 5 R. Milincic, 18 D. Montanari, 6 M. Montuschi, 7 M. E. Monzani, 26 P. Mosteiro, 5 B. Mount, 22 V. Muratova, 16 P. Musico, 11 A. Nelson, 5 S. Odrowski, 7 M. Okounkova, 5 M. Orsini, 7 F. Ortica, 29 L. Pagani, 11 M. Pallavicini, 11 E. Pantic, 4, 30 L. Papp, 23 S. Parmeggiano, 9 R. Parsells, 5 K. Pelczar, 31 N. Pelliccia, 29 S. Perasso, 1 A. Pocar, 2 S. Pordes, 6 D. Pugachev, 27 H. Qian, 5 K. Randle, 2 G. Ranucci, 9 A. Razeto, 7 B. Reinhold, 18 A. Renshaw, 4 A. Romani, 29 B. Rossi, 5, 14 N. Rossi, 7 S. D. Rountree, 23 D. Sablone, 15 P. Saggese, 7 R. Saldanha, 12 W. Sands, 5 S. Sangiorgio, 32 E. Segreto, 7 D. Semenov, 16 E. Shields, 5 M. Skorokhvatov, 28 O. Smirnov, 19 A. Sotnikov, 19 C. Stanford, 5 Y. Suvorov, 4 R. Tartaglia, 7 J. Tatarowicz, 25 G. Testera, 11 A. Tonazzo, 1 E. Unzhakov, 16 R. B. Vogelaar, 23 M. Wada, 5 S. Walker, 14 H. Wang, 4 Y. Wang, 20 A. Watson, 25 S. Westerdale, 5 M. Wojcik, 31 A. Wright, 5 X. Xiang, 5 J. Xu, 5 C. G. Yang, 20 J. Yoo, 6 S. Zavatarelli, 11 A. Zec, 2 C. Zhu, G. Zuzel31, MARI, Stefano Maria, P., Agne, 1 T., Alexander, 2 A., Alton, 3 K., Arisaka, 4 H. O., Back, 5 B., Baldin, 6 K., Biery, 6 G., Bonfini, 7 M., Bossa, 8 A., Brigatti, 9 J., Brodsky, 5 F., Budano, 10 L., Cadonati, 2 F., Calaprice, 5 N., Canci, 4 A., Candela, 7 H., Cao, 5 M., Cariello, 11 P., Cavalcante, 7 A., Chavarria, 12 A., Chepurnov, 13 A. G., Cocco, 14 L., Crippa, 9 D., D’Angelo, 9 M., D’Incecco, 7 S., Davini, 15 M., De Deo, 7 A., Derbin, 16 A., Devoto, 17 F., Di Eusanio, 5 G., Di Pietro, 9 E., Edkin, 18 A., Empl, 15 A., Fan, 4 G., Fiorillo, 14 K., Fomenko, 19 G., Forster, 2 D., Franco, 1 F., Gabriele, 7 C., Galbiati, 5 A., Goretti, 5 L., Grandi, 12 M., Gromov, 13 M. Y., Guan, 20 Y., Guardincerri, 6 B., Hackett, 18 K., Herner, 6 E. V., Hungerford, Ianni, 15 A. l., Ianni, 7 A. n., 5 C., Jollet, 21 K., Keeter, 22 C., Kendziora, 6 S., Kidner, a. V., Kobychev, 24 G., Koh, 5 D., Korablev, 19 G., Korga, 15 A., Kurlej, 2 P. X., Li, 20 B., Loer, 5 P., Lombardi, 9 C., Love, 25 L., Ludhova, 9 S., Luitz, 26 Y. Q., Ma, 20 I., Machulin, 28 A., Mandarano, Mari, Stefano Maria, 10 J., Maricic, 18 L., Marini, 10 C. J., Martoff, 25 A., Meregaglia, 21 E., Meroni, 9 P. D., Meyer, 5 R., Milincic, 18 D., Montanari, 6 M., Montuschi, 7 M. E., Monzani, 26 P., Mosteiro, 5 B., Mount, 22 V., Muratova, 16 P., Musico, 11 A., Nelson, 5 S., Odrowski, 7 M., Okounkova, 5 M., Orsini, 7 F., Ortica, 29 L., Pagani, 11 M., Pallavicini, 11 E., Pantic, 30 L., Papp, 23 S., Parmeggiano, 9 R., Parsell, 5 K., Pelczar, 31 N., Pelliccia, 29 S., Perasso, 1 A., Pocar, 2 S., Porde, 6 D., Pugachev, 27 H., Qian, 5 K., Randle, 2 G., Ranucci, 9 A., Razeto, 7 B., Reinhold, 18 A., Renshaw, 4 A., Romani, 29 B., Rossi, 14 N., Rossi, 7 S. D., Rountree, 23 D., Sablone, 15 P., Saggese, 7 R., Saldanha, 12 W., Sand, 5 S., Sangiorgio, 32 E., Segreto, 7 D., Semenov, 16 E., Shield, 5 M., Skorokhvatov, 28 O., Smirnov, 19 A., Sotnikov, 19 C., Stanford, 5 Y., Suvorov, 4 R., Tartaglia, 7 J., Tatarowicz, 25 G., Testera, 11 A., Tonazzo, 1 E., Unzhakov, 16 R. B., Vogelaar, 23 M., Wada, 5 S., Walker, 14 H., Wang, 4 Y., Wang, 20 A., Watson, 25 S., Westerdale, 5 M., Wojcik, 31 A., Wright, 5 X., Xiang, 5 J., Xu, 5 C. G., Yang, 20 J., Yoo, 6 S., Zavatarelli, 11 A., Zec, 2 C., Zhu, and G., Zuzel31
Subjects: Physics, Large Underground Xenon experiment, Physics::Instrumentation and Detectors, Hot dark matter, Dark matter, Scalar field dark matter, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Dark matter halo, Weakly interacting massive particles, Warm dark matter, Instrumentation, Light dark matter, Mathematical Physics
Abstract: The existence of dark matter is inferred from gravitational effects, but its nature remains a deep mystery. One possibility, motivated by considerations in elementary particle physics, is that dark matter consists of elementary particles, such as the hypothesized Weakly Interacting Massive Particles (WIMPs), with mass ~ 100 GeV and cross-section ~ 10−47 cm2, that can be gravitationally trapped inside our galaxy and revealed by their scattering on nuclei. It should be possible to detect WIMPs directly, as the orbital motion of the WIMPs composing the dark matter halo pervading the galaxy should result in WIMP-nucleus collisions of sufficient energy to be observable in the laboratory. The DarkSide-50 experiment is a direct WIMP search using a Liquid Argon Time Projection Chamber (LAr-TPC) with an active mass of 50 kg with a high sensitivity and an ultra-low background detector.
Published: 2014

24. First Results from the DarkSide-50 Dark Matter Experiment at Laboratori Nazionali del Gran Sasso

Author: P. Agnes, 1 T. Alexander, 2 A. Alton, 3 K. Arisaka, 4 H. O. Back, 5 B. Baldin, 6 K. Biery, 6 G. Bonfini, 7 M. Bossa, 8 A. Brigatti, 9 J. Brodsky, 5 F. Budano, 10 L. Cadonati, 2 F. Calaprice, 5 N. Canci, 4 A. Candela, 7 H. Cao, 5 M. Cariello, 11 P. Cavalcante, 7 A. Chavarria, 12 A. Chepurnov, 13 A. G. Cocco, 14 L. Crippa, 9 D. D’Angelo, 9 M. D’Incecco, 7 S. Davini, 15 M. De Deo, 7 A. Derbin, 16 A. Devoto, 17 F. Di Eusanio, 5 G. Di Pietro, 9 E. Edkins, 18 A. Empl, 15 A. Fan, 4 G. Fiorillo, 14 K. Fomenko, 19 G. Forster, 2 D. Franco, 1 F. Gabriele, 7 C. Galbiati, 5 A. Goretti, 5 L. Grandi, 12 M. Gromov, 13 M. Y. Guan, 20 Y. Guardincerri, 6 B. Hackett, 18 K. Herner, 6 E. V. Hungerford, 15 A.l. Ianni, 7 A.n. Ianni, 5 C. Jollet, 21 K. Keeter, 22 C. Kendziora, 6 S. Kidner, a. V. Kobychev, 24 G. Koh, 5 D. Korablev, 19 G. Korga, 15 A. Kurlej, 2 P. X. Li, 20 B. Loer, 5 P. Lombardi, 9 C. Love, 25 L. Ludhova, 9 S. Luitz, 26 Y. Q. Ma, 20 I. Machulin, 28 A. Mandarano, 10 J. Maricic, 18 L. Marini, 10 C. J. Martoff, 25 A. Meregaglia, 21 E. Meroni, 9 P. D. Meyers, 5 R. Milincic, 18 D. Montanari, 6 M. Montuschi, 7 M. E. Monzani, 26 P. Mosteiro, 5 B. Mount, 22 V. Muratova, 16 P. Musico, 11 A. Nelson, 5 S. Odrowski, 7 M. Okounkova, 5 M. Orsini, 7 F. Ortica, 29 L. Pagani, 11 M. Pallavicini, 11 E. Pantic, 4, 30 L. Papp, 23 S. Parmeggiano, 9 R. Parsells, 5 K. Pelczar, 31 N. Pelliccia, 29 S. Perasso, 1 A. Pocar, 2 S. Pordes, 6 D. Pugachev, 27 H. Qian, 5 K. Randle, 2 G. Ranucci, 9 A. Razeto, 7 B. Reinhold, 18 A. Renshaw, 4 A. Romani, 29 B. Rossi, 5, 14 N. Rossi, 7 S. D. Rountree, 23 D. Sablone, 15 P. Saggese, 7 R. Saldanha, 12 W. Sands, 5 S. Sangiorgio, 32 E. Segreto, 7 D. Semenov, 16 E. Shields, 5 M. Skorokhvatov, 28 O. Smirnov, 19 A. Sotnikov, 19 C. Stanford, 5 Y. Suvorov, 4 R. Tartaglia, 7 J. Tatarowicz, 25 G. Testera, 11 A. Tonazzo, 1 E. Unzhakov, 16 R. B. Vogelaar, 23 M. Wada, 5 S. Walker, 14 H. Wang, 4 Y. Wang, 20 A. Watson, 25 S. Westerdale, 5 M. Wojcik, 31 A. Wright, 5 X. Xiang, 5 J. Xu, 5 C. G. Yang, 20 J. Yoo, 6 S. Zavatarelli, 11 A. Zec, 2 C. Zhu, G. Zuzel 3, MARI, Stefano Maria, P. Agnes, P., Agne, 1 T., Alexander, 2 A., Alton, 3 K., Arisaka, 4 H. O., Back, 5 B., Baldin, 6 K., Biery, 6 G., Bonfini, 7 M., Bossa, 8 A., Brigatti, 9 J., Brodsky, 5 F., Budano, 10 L., Cadonati, 2 F., Calaprice, 5 N., Canci, 4 A., Candela, 7 H., Cao, 5 M., Cariello, 11 P., Cavalcante, 7 A., Chavarria, 12 A., Chepurnov, 13 A. G., Cocco, 14 L., Crippa, 9 D., D’Angelo, 9 M., D’Incecco, 7 S., Davini, 15 M., De Deo, 7 A., Derbin, 16 A., Devoto, 17 F., Di Eusanio, 5 G., Di Pietro, 9 E., Edkin, 18 A., Empl, 15 A., Fan, 4 G., Fiorillo, 14 K., Fomenko, 19 G., Forster, 2 D., Franco, 1 F., Gabriele, 7 C., Galbiati, 5 A., Goretti, 5 L., Grandi, 12 M., Gromov, 13 M. Y., Guan, 20 Y., Guardincerri, 6 B., Hackett, 18 K., Herner, 6 E. V., Hungerford, Ianni, 15 A. l., Ianni, 7 A. n., 5 C., Jollet, 21 K., Keeter, 22 C., Kendziora, 6 S., Kidner, a. V., Kobychev, 24 G., Koh, 5 D., Korablev, 19 G., Korga, 15 A., Kurlej, 2 P. X., Li, 20 B., Loer, 5 P., Lombardi, 9 C., Love, 25 L., Ludhova, 9 S., Luitz, 26 Y. Q., Ma, 20 I., Machulin, 28 A., Mandarano, Mari, Stefano Maria, 10 J., Maricic, 18 L., Marini, 10 C. J., Martoff, 25 A., Meregaglia, 21 E., Meroni, 9 P. D., Meyer, 5 R., Milincic, 18 D., Montanari, 6 M., Montuschi, 7 M. E., Monzani, 26 P., Mosteiro, 5 B., Mount, 22 V., Muratova, 16 P., Musico, 11 A., Nelson, 5 S., Odrowski, 7 M., Okounkova, 5 M., Orsini, 7 F., Ortica, 29 L., Pagani, 11 M., Pallavicini, 11 E., Pantic, 30 L., Papp, 23 S., Parmeggiano, 9 R., Parsell, 5 K., Pelczar, 31 N., Pelliccia, 29 S., Perasso, 1 A., Pocar, 2 S., Porde, 6 D., Pugachev, 27 H., Qian, 5 K., Randle, 2 G., Ranucci, 9 A., Razeto, 7 B., Reinhold, 18 A., Renshaw, 4 A., Romani, 29 B., Rossi, 14 N., Rossi, 7 S. D., Rountree, 23 D., Sablone, 15 P., Saggese, 7 R., Saldanha, 12 W., Sand, 5 S., Sangiorgio, 32 E., Segreto, 7 D., Semenov, 16 E., Shield, 5 M., Skorokhvatov, 28 O., Smirnov, 19 A., Sotnikov, 19 C., Stanford, 5 Y., Suvorov, 4 R., Tartaglia, 7 J., Tatarowicz, 25 G., Testera, 11 A., Tonazzo, 1 E., Unzhakov, 16 R. B., Vogelaar, 23 M., Wada, 5 S., Walker, 14 H., Wang, 4 Y., Wang, 20 A., Watson, 25 S., Westerdale, 5 M., Wojcik, 31 A., Wright, 5 X., Xiang, 5 J., Xu, 5 C. G., Yang, 20 J., Yoo, 6 S., Zavatarelli, 11 A., Zec, 2 C., Zhu, and G., Zuzel 3
Subjects: Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics, High Energy Physics::Experiment, Astrophysics::Cosmology and Extragalactic Astrophysics, Nuclear Experiment
Abstract: We report the first results of DarkSide-50, a direct search for dark matter operating in the un- derground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a ( 46.4 0.7 ) kg active mass, operated inside a 30 t or- ganic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a ( 1422 67 ) kg d exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1 10
Published: 2014

25. The Electronics and Data Acquisition System of the DarkSide Dark Matter Search

Author: The DarkSide Collaboration, P. Agnes 1, T. Alexander 2, A. Alton 3, K. Arisaka 4, H. O. Back 5, B. Baldin 6, K. Biery 6, G. Bonfini 7, M. Bossa 8, A. Brigatti 9, J. Brodsky 5, F. Budano 10, L. Cadonati 2, F. Calaprice 5, N. Canci 4, A. Candela 7, H. Cao 5, M. Cariello 11, P. Cavalcante 7, A. Chavarria 12, A. Chepurnov 13, A. G. Cocco 14, L. Crippa 9, D. D’Angelo 9, M. D’Incecco 7, S. Davini 15, M. De Deo 7, A. Derbin 16, A. Devoto 17, F. Di Eusanio 5, G. Di Pieto 9, E. Edkins 18, A. Empl 15, A. Fan 4, G. Fiorillo 14, K. Fomenko 19, G. Forster 2, D. Franco 1, F. Gabriele 7, C. Galbiati 5, A. Goretti 5, L. Grandi 12, M. Gromov 13, M. Y. Guan 20, Y. Guardincerri 6, B. Hackett 18, K. Herner 6, E. Hungerford 15, A.l. Ianni 7, A.n. Ianni 5, C. Jollet 21, K. Keeter 22, C. Kendziora 6, S. Kidner 23, V. Kobychev 24, G. Koh 5, D. Korablev 19, G. Korga 15, A. Kurlej 2, P. X. Li 20, B. Loer 5, P. Lombardi 9, C. Love 25, L. Ludhova 9, S. Luitz 26, Y. Q. Ma 20, I. Machulin 27, A. Mandarano 10, J. Maricic 18, L. Marini 10, J. Martoff 25, A. Meregaglia 21, E. Meroni 9, P. D. Meyers 5, R. Milincic 18, D. Montanari 6, M. Montuschi 7, M. E. Monzani 26, P. Mosteiro 5, B. Mount 22, V. Muratova 16, P. Musico 11, A. Nelson 5, S. Odrowski 7, M. Okounkoa 5, M. Orsini 7, F. Ortica 19, L. Pagani 11, M. Pallavicini 11, E. Pantic 4, L. Papp 23, S. Parmeggiano 9, Bob Parsells 5, K. Pelczar 31, N. Pelliccia 29, S. Perasso 1, A. Pocar 2, S. Pordes 6, D. Pugachev 27, H. Qian 5, K. Randle 2, G. Ranucci 9, A. Razeto 7, B. Reinhold 18, A. Renshaw 4, A. Romani 29, B. Rossi 5, N. Rossi 7, S. D. Rountree 23, D. Sablone 15, P. Saggese 7, R. Saldanha 12, W. Sands 5, S. Sangiorgio 30, E. Segreto 7, D. Semenov 16, E. Shields 5, M. Skorokhvatov 27, O. Smirnov 19, A. Sotnikov 19, C. Stanford 5, Suvorov 4, R. Tartaglia 17, J. Tatarowicz 25, G. Testera 11, A. Tonazzo 1, E. Unzhakov 16, R. B. Vogelaar 23, M. Wada 5, S. E. Walker 14, H. Wang 4, Y. Wang 28, A. Watson 25, S. Westerdale 5, M. Wojcik 31, A. Wright 5, X. Xiang 5, J. Xu 5, C. G. Yang 20, J. Yoo 6, S. Zavatarelli 11, A. Zec 2, C. Zhu 5, G. Zuzel 31, MARI, Stefano Maria, P. Agnes, P.Agnes, The DarkSide, Collaboration, P., Agnes 1, T., Alexander 2, A., Alton 3, K., Arisaka 4, H. O., Back 5, B., Baldin 6, K., Biery 6, G., Bonfini 7, M., Bossa 8, A., Brigatti 9, J., Brodsky 5, F., Budano 10, L., Cadonati 2, F., Calaprice 5, N., Canci 4, A., Candela 7, H., Cao 5, M., Cariello 11, P., Cavalcante 7, A., Chavarria 12, A., Chepurnov 13, A. G., Cocco 14, L., Crippa 9, D., D’Angelo 9, M., D’Incecco 7, S., Davini 15, M., De Deo 7, A., Derbin 16, A., Devoto 17, F., Di Eusanio 5, G., Di Pieto 9, E., Edkins 18, A., Empl 15, A., Fan 4, G., Fiorillo 14, K., Fomenko 19, G., Forster 2, D., Franco 1, F., Gabriele 7, C., Galbiati 5, A., Goretti 5, L., Grandi 12, M., Gromov 13, M. Y., Guan 20, Y., Guardincerri 6, B., Hackett 18, K., Herner 6, E., Hungerford 15, Ianni 7, A. l., Ianni 5, A. n., C., Jollet 21, K., Keeter 22, C., Kendziora 6, S., Kidner 23, V., Kobychev 24, G., Koh 5, D., Korablev 19, G., Korga 15, A., Kurlej 2, P. X., Li 20, B., Loer 5, P., Lombardi 9, C., Love 25, L., Ludhova 9, S., Luitz 26, Y. Q., Ma 20, I., Machulin 27, A., Mandarano 10, Mari, Stefano Maria, J., Maricic 18, L., Marini 10, J., Martoff 25, A., Meregaglia 21, E., Meroni 9, P. D., Meyers 5, R., Milincic 18, D., Montanari 6, M., Montuschi 7, M. E., Monzani 26, P., Mosteiro 5, B., Mount 22, V., Muratova 16, P., Musico 11, A., Nelson 5, S., Odrowski 7, M., Okounkoa 5, M., Orsini 7, F., Ortica 19, L., Pagani 11, M., Pallavicini 11, E., Pantic 4, L., Papp 23, S., Parmeggiano 9, Bob Parsells, 5, K., Pelczar 31, N., Pelliccia 29, S., Perasso 1, A., Pocar 2, S., Pordes 6, D., Pugachev 27, H., Qian 5, K., Randle 2, G., Ranucci 9, A., Razeto 7, B., Reinhold 18, A., Renshaw 4, A., Romani 29, B., Rossi 5, N., Rossi 7, S. D., Rountree 23, D., Sablone 15, P., Saggese 7, R., Saldanha 12, W., Sands 5, S., Sangiorgio 30, E., Segreto 7, D., Semenov 16, E., Shields 5, M., Skorokhvatov 27, O., Smirnov 19, A., Sotnikov 19, C., Stanford 5, Suvorov, 4, R., Tartaglia 17, J., Tatarowicz 25, G., Testera 11, A., Tonazzo 1, E., Unzhakov 16, R. B., Vogelaar 23, M., Wada 5, S. E., Walker 14, H., Wang 4, Y., Wang 28, A., Watson 25, S., Westerdale 5, M., Wojcik 31, A., Wright 5, X., Xiang 5, J., Xu 5, C. G., Yang 20, J., Yoo 6, S., Zavatarelli 11, A., Zec 2, C., Zhu 5, and G., Zuzel 31
Abstract: It is generally inferred from astronomical measurements th at Dark Matter (DM) comprises approximately 27% of the energy-dens ity of the universe. If DM is a subatomic particle, a possible candidate is a Weakl y Interacting Mas- sive Particle (WIMP), and the DarkSide-50 (DS) experiment i s a direct search for evidence of WIMP-nuclear collisions. DS is located undergr ound at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy, and consists of thr ee active, embedded components; an outer water veto (CTF), a liquid scintillato r veto (LSV), and a liquid argon (LAr) time projection chamber (TPC). This pap er describes the data acquisition and electronic systems of the DS detectors , designed to detect the residual ionization from s
Published: 2014

26. Effect of Low Electric Fields on Alpha Scintillation Light Yield in Liquid Argon

Author: D. Rountree, T. N. Johnson, A. Kubankin, M. Guan, B. Loer, N. Canci, A. L. Renshaw, Giuseppe Longo, M. De Vincenzi, P. Humble, A. Razeto, P. Cavalcante, A. Empl, G. Testera, G. Di Pietro, Giovanni Covone, G. Korga, F. Granato, Al. Ianni, Caoxiang Zhu, B. Schlitzer, M. Cadeddu, E. V. Unzhakov, C. Stanford, K. Pelczar, B. J. Mount, Cristiano Galbiati, J. Tatarowicz, Mariano Cadoni, P. Trinchese, A. Navrer Agasson, Jilei Xu, N. Rossi, E. Shields, O. Smirnov, M. Verducci, Severino Angelo Maria Bussino, B. Baldin, A. Tonazzo, C. Dionisi, M. D. Skorokhvatov, Stefano Maria Mari, S. Parmeggiano, J. Brodsky, P. Saggese, P. Musico, Cécile Jollet, E. Segreto, V. N. Muratova, A. Monte, A. Alton, G. Fiorillo, B. Bottino, I. N. Machulin, J. Wilhelmi, G. Forster, M. Carlini, Chung-Yao Yang, M. Cariello, A. Candela, V. Bocci, M. D'Incecco, Xiang Xiao, P. N. Singh, Marco Pallavicini, D. D'Angelo, Q. Riffard, L. Pagani, Anselmo Meregaglia, H. Qian, D. Hughes, Maria Rescigno, S. De Cecco, Jim Napolitano, R. Milincic, Hui Wang, G. Koh, Marcello Lissia, S. Odrowski, A. V. Derbin, D. M. Asner, Thomas Alexander, W. Sands, J. Miller, M. Orsini, R. Tartaglia, N. Pelliccia, A. Pocar, J. Maricic, D. Montanari, Stuart Derek Walker, A. Vishneva, M. Gromov, Gioacchino Ranucci, Paolo Lombardi, Y. Q. Ma, L. Marini, M. Bossa, D. Korablev, M. Wada, Ivone F. M. Albuquerque, Peter Daniel Meyers, Irina James, D. Franco, S. Pordes, Y. Guardincerri, D. Semenov, A. Brigatti, D. Sablone, W. Zhong, Frank Calaprice, Y. Suvorov, S. Westerdale, K. Fomenko, G. K. Giovanetti, Alan Watson, A. Mandarano, X. Xiang, Marcin Wójcik, A. M. Goretti, A. S. Chepurnov, C. Giganti, E. Pantic, G. Zuzel, F. Gabriele, B. Reinhold, C. Savarese, E. V. Hungerford, M. De Deo, F. Budano, Stefano Giagu, B. Vogelaar, A. Sotnikov, G. Bonfini, K. Randle, X. Li, A. Oleinik, Fausto Ortica, H. O. Back, Yanchu Wang, S. Davini, C. J. Martoff, A. Devoto, B. R. Hackett, C. Cicalò, M. Razeti, K. Keeter, W. Bonivento, Biagio Rossi, E. Edkins, K. Biery, A. Fan, D. A. Pugachev, S. Catalanotti, A. G. Cocco, F. Di Eusanio, K. Herner, Aldo Romani, P. Agnes, C. L. Kendziora, M. Caravati, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), DarkSide, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Asner, D. M., Back, H. O., Baldin, B., Biery, K., Bocci, V., Bonfini, G., Bonivento, W., Bossa, Maria, Bottino, B., Brigatti, A., Brodsky, J., Budano, F., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Canci, N., Candela, A., Caravati, M., Cariello, M., Carlini, M., Catalanotti, Sergio, Cavalcante, P., Chepurnov, A., Cicalo, C., Cocco, ALFREDO GIUSEPPE, Covone, Giovanni, D'Angelo, D., D'Incecco, M., Davini, S., De Cecco, S., De Deo, M., De Vincenzi, M., Derbin, A., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Edkins, E., Empl, A., Fan, A., Fiorillo, Giuliana, Fomenko, K., Forster, G., Franco, D., Gabriele, F., Galbiati, C., Giagu, S., Giganti, C., Giovanetti, G. K., Goretti, A. M., Granato, F., Gromov, M., Guan, M., Guardincerri, Y., Hackett, B. R., Herner, K., Hughes, D., Humble, P., Hungerford, E. V., Ianni, A., James, I., Johnson, T. N., Jollet, C., Keeter, K., Kendziora, C. L., Koh, G., Korablev, D., Korga, G., Kubankin, A., Li, X., Lissia, M., Loer, B., Lombardi, P., Longo, Giuseppe, Ma, Y., Machulin, I. N., Mandarano, A., Mari, S. M., Maricic, J., Marini, L., Martoff, C. J., Meregaglia, A., Meyers, P. D., Milincic, R., Miller, J. D., Montanari, D., Monte, A., Mount, B. J., Muratova, V. N., Musico, P., Napolitano, J., Agasson, A. Navrer, Odrowski, S., Oleinik, A., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pantic, E., Parmeggiano, S., Pelczar, K., Pelliccia, N., Pocar, A., Pordes, S., Pugachev, D. A., Qian, H., Randle, K., Ranucci, G., Razeti, M., Razeto, A., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Romani, A., Rossi, B., Rossi, N., Rountree, D., Sablone, D., Saggese, P., Sands, W., Savarese, C., Schlitzer, B., Segreto, E., Semenov, D. A., Shields, E., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stanford, C., Suvorov, Y., Tartaglia, R., Tatarowicz, J., Testera, G., Tonazzo, A., Trinchese, P., Unzhakov, E. V., Verducci, M., Vishneva, A., Vogelaar, B., Wada, M., Walker, Susan Elizabeth, Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wilhelmi, J., Wojcik, M. M., Xiang, X., Xiao, X., Xu, J., Yang, C., Zhong, W., Zhu, C., Zuzel, G., AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Pluridisciplinaire Hubert Curien ( IPHC ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Strasbourg ( UNISTRA ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Bossa, M., Budano, Federico, Bussino, Severino Angelo Maria, Catalanotti, S., Cicalò, C., Cocco, A. G., Covone, G., Cecco, S. De, Deo, M. De, Vincenzi, M. De, Eusanio, F. Di, Pietro, G. Di, Fiorillo, G., James, Irina, Longo, G., Mari, Stefano Maria, Stanford, C, and Walker, S.
Subjects: radon: decay, Physics - Instrumentation and Detectors, Yield (engineering), Materials science, Field (physics), MATÉRIA ESCURA, Physics::Instrumentation and Detectors, Alpha (ethology), FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, electric field: effect, Dark Matter detectors (WIMPs, axions, etc.), Electric field, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, Mathematical Physics, scintillation counter, Scintillation, Time projection chamber, helium: irradiation, 010308 nuclear & particles physics, Alpha particle, Instrumentation and Detectors (physics.ins-det), time projection chamber: liquid argon, Large detector systems for particle and astroparticle physic, Decay chain, Atomic physics, photon: yield
Abstract: Measurements were made of scintillation light yield of alpha particles from the $^{222}$Rn decay chain within the DarkSide-50 liquid argon time projection chamber. The light yield was found to increase as the applied electric field increased, with alphas in a 200 V/cm electric field exhibiting a 2% increase in light yield compared to alphas in no field., Comment: 5 pages, 5 figures
Published: 2016
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27. DarkSide search for dark matter

Author: I. N. Machulin, R. Klemmer, Marco Pallavicini, N. Rossi, G. Forster, K. Fomenko, W. Sands, G. Di Pietro, H. Cao, D. D'Angelo, M. Komor, A. Razeto, N. N. Nurakhov, R. Saldanha, S. Parmeggiano, A. Nemtzow, E. Shields, F. Perfetto, Min-Xin Guan, M. Gromov, K. Randle, E. V. Unzhakov, S. Bussino, M. Orsini, M. Montuschi, E. Meroni, G. Korga, Austin P. Lund, Marc S. Seigar, A. Tonazzo, E. de Haas, G. Testera, L. Lukyanchenko, S. Gazzana, M. D. Skorokhvatov, B. Rossi, M. De Vincenzi, J. Maricic, L. Grandi, G. Zuzel, Laura Cadonati, M. E. Monzani, Yanhui Ma, D. Durben, M. Zehfus, B. J. Mount, Chung-Yao Yang, Augusto Brigatti, Lawrence Pinsky, A. Kayunov, R. B. Vogelaar, A. Meregaglia, S. Chidzik, C. Joliet, C. Condon, C. Ghiano, A. Pocar, N. Pelliccia, C. L. Kendziora, P. Saggese, A. Nelson, Sandra Zavatarelli, P. X. Li, O. Smirnov, S. Westerdale, Livia Ludhova, A. M. Goretti, A. S. Chepurnov, Thomas Alexander, S. Pordes, E. V. Hungerford, G. Koh, G. Guray, A. Sotnikov, Fausto Ortica, C. Guo, D. A. Semenov, R. Tartaglia, E. Pantic, K. Arisaka, G. Fiorillo, D. Korablev, I. Dratchnev, C. J. Martoff, Frank Calaprice, J. Brodsky, J. Tatarowicz, K. Keeter, Gioacchino Ranucci, Marcin Wójcik, D. Franco, W. Zhong, P. Cavalcante, Henning O. Back, G. Bonfini, P. Beltrame, P. D. Meyers, J. Thompson, An. Ianni, V. N. Muratova, L. Perasso, D. Alton, C. Salvo, S. Perasso, A.V. Etenko, R. Parsells, S. Davini, A. G. Cocco, Al. Ianni, Stefano Maria Mari, S. Luitz, Han Wang, P. J. Mosteiro, F. Gabriele, Jingke Xu, Cristiano Galbiati, D. Montanari, A. Fan, A. Empl, S. Kidner, S. V. Sukhotin, A. Wright, V. V. Kobychev, K. Lung, C. Love, T. Mohayai, A. Candela, S. D. Rountree, Paolo Lombardi, Aldo Romani, B Loer, A. V. Derbin, Y Suvarov, Jay Burton Benziger, T., Alexander, D., Alton, K., Arisaka, H. O., Back, P., Beltrame, J., Benziger, G., Bonfini, A., Brigatti, J., Brodsky, S., Bussino, L., Cadonati, F., Calaprice, A., Candela, H., Cao, P., Cavalcante, A., Chepurnov, S., Chidzik, A. G., Cocco, C., Condon, D., D'Angelo, S., Davini, M. D., Vincenzi, E. D., Haa, A., Derbin, G. D., Pietro, I., Dratchnev, D., Durben, A., Empl, A., Etenko, A., Fan, Fiorillo, Giuliana, D., Franco, K., Fomenko, G., Forster, F., Gabriele, C., Galbiati, S., Gazzana, C., Ghiano, A., Goretti, L., Grandi, M., Gromov, M., Guan, C., Guo, G., Guray, E. V., Hungerford, A., Ianni, C., Joliet, A., Kayunov, K., Keeter, C., Kendziora, S., Kidner, R., Klemmer, V., Kobychev, G., Koh, M., Komor, D., Korablev, G., Korga, P., Li, B., Loer, P., Lombardi, C., Love, L., Ludhova, S., Luitz, L., Lukyanchenko, A., Lund, K., Lung, Y., Ma, I., Machulin, S., Mari, J., Maricic, C. J., Martoff, A., Meregaglia, E., Meroni, P., Meyer, T., Mohayai, D., Montanari, M., Montuschi, M. E., Monzani, P., Mosteiro, B., Mount, V., Muratova, A., Nelson, A., Nemtzow, N., Nurakhov, M., Orsini, F., Ortica, M., Pallavicini, E., Pantic, S., Parmeggiano, R., Parsell, N., Pelliccia, L., Perasso, S., Perasso, Perfetto, Francesco, L., Pinsky, A., Pocar, S., Porde, K., Randle, G., Ranucci, A., Razeto, A., Romani, B., Rossi, N., Rossi, S. D., Rountree, P., Saggese, R., Saldanha, C., Salvo, W., Sand, M., Seigar, D., Semenov, E., Shield, M., Skorokhvatov, O., Smirnov, A., Sotnikov, S., Sukhotin, Y., Suvarov, R., Tartaglia, J., Tatarowicz, G., Testera, J., Thompson, A., Tonazzo, E., Unzhakov, R. B., Vogelaar, H., Wang, S., Westerdale, M., Wojcik, A., Wright, J., Xu, C., Yang, S., Zavatarelli, M., Zehfu, W., Zhong, G., Zuzel, Physics Department, Amherst U., University of Massachusetts System (UMASS), Biomécanique et Bioingénierie (BMBI), Université de Technologie de Compiègne (UTC)-Centre National de la Recherche Scientifique (CNRS), Régulation de l'expression génétique chez les microorganismes (REGCM), Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire Kastler Brossel (LKB (Jussieu)), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), departement de physique, Albert-Ludwigs-Universität Freiburg, SLAC National Accelerator Laboratory (SLAC), Stanford University, Anhui University [Hefei], Physics Department, Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Department of Geological Sciences, University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Università degli studi di Genova = University of Genoa (UniGe), Departamento de Engenharia Elétrica [Minas Gerais] (DEE - UFMG), Universidade Federal de Minas Gerais, Max-Planck-Institut für Astronomie (MPIA), Max-Planck-Gesellschaft, Rhodes University, Grahamstown, EAST CHINA UNIVERSITY, KEY LAB, Institute of Physics, Polish Academy of Sciences, Polska Akademia Nauk = Polish Academy of Sciences (PAN), International Iberian Nanotechnology Laboratory (INL), Centre de Recherche en Information Biomédicale sino-français (CRIBS), Université de Rennes (UR)-Southeast University [Jiangsu]-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Européen des membranes (IEM), Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Alexander, T, Alton, D, Arisaka, K, Back, Ho, Beltrame, P, Benziger, J, Bonfini, G, Brigatti, A, Brodsky, J, Bussino, Severino Angelo Maria, Cadonati, L, Calaprice, F, Candela, A, Cao, H, Cavalcante, P, Chepurnov, A, Chidzik, S, Cocco, Ag, Condon, C, D'Angelo, D, Davini, S, DE VINCENZI, Mario, De Haas, E, Derbin, A, Di Pietro, G, Dratchnev, I, Durben, D, Empl, A, Etenko, A, Fan, A, Fiorillo, G, Franco, D, Fomenko, K, Forster, G, Gabriele, F, Galbiati, C, Gazzana, S, Ghiano, C, Goretti, A, Grandi, L, Gromov, M, Guan, M, Guo, C, Guray, G, Hungerford, Ev, Ianni, Al, Ianni, An, Joliet, C, Kayunov, A, Keeter, K, Kendziora, C, Kidner, S, Klemmer, R, Kobychev, V, Koh, G, Komor, M, Korablev, D, Korga, G, Li, P, Loer, B, Lombardi, P, Love, C, Ludhova, L, Luitz, S, Lukyanchenko, L, Lund, A, Lung, K, Ma, Y, Machulin, I, Mari, Stefano Maria, Maricic, J, Martoff, Cj, Meregaglia, A, Meroni, E, Meyers, P, Mohayai, T, Montanari, D, Montuschi, M, Monzani, Me, Mosteiro, P, Mount, B, Muratova, V, Nelson, A, Nemtzow, A, Nurakhov, N, Orsini, M, Ortica, F, Pallavicini, M, Pantic, E, Parmeggiano, S, Parsells, R, Pelliccia, N, Perasso, L, Perasso, S, Perfetto, F, Pinsky, L, Pocar, A, Pordes, S, Randle, K, Ranucci, G, Razeto, A, Romani, A, Rossi, B, Rossi, N, Rountree, Sd, Saggese, P, Saldanha, R, Salvo, C, Sands, W, Seigar, M, Semenov, D, Shields, E, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Sukhotin, S, Suvarov, Y, Tartaglia, R, Tatarowicz, J, Testera, G, Thompson, J, Tonazzo, A, Unzhakov, E, Vogelaar, Rb, Wang, H, Westerdale, S, Wojcik, M, Wright, A, Xu, J, Yang, C, Zavatarelli, S, Zehfus, M, Zhong, W, Zuzel, G., Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Dip. di Fisica dell'Università di Genova - Italy, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Southeast University [Jiangsu]-Institut National de la Santé et de la Recherche Médicale (INSERM), and Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)
Subjects: Physics::Instrumentation and Detectors, Dark matter, chemistry.chemical_element, 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, Neutron, Dark Matter detector, 010306 general physics, Instrumentation, Mathematical Physics, ComputingMilieux_MISCELLANEOUS, Event reconstruction, Physics, [PHYS]Physics [physics], Scintillation, Argon, Time projection chamber, 010308 nuclear & particles physics, Detector, chemistry, Scintillation counter, High Energy Physics::Experiment, Noble liquid detector, DarkSide detector, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: "The DarkSide staged program utilizes a two-phase time projection chamber (TPC) with liquid argon as the target material for the scattering of dark matter particles. Efficient background reduction is achieved using low radioactivity underground argon as well as several experimental handles such as pulse shape, ratio of ionization over scintillation signal, 3D event reconstruction, and active neutron and muon vetos. The DarkSide-10 prototype detector has proven high scintillation light yield, which is a particularly important parameter as it sets the energy threshold for the pulse shape discrimination technique. The DarkSide-50 detector system, currently in commissioning phase at the Gran Sasso Underground Laboratory, will reach a sensitivity to dark matter spin-independent scattering cross section of 10(-45) cm(2) within 3 years of operation."
Published: 2013
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28. DarkSide-50 : a WIMP search with a two-phase argon TPC

Author: P.D. Meyers, P. Agnes, D. Alton, K. Arisaka, H.O. Back, B. Baldin, K. Biery, G. Bonfini, M. Bossa, A. Brigatti, J. Brodsky, F. Budano, L. Cadonati, F. Calaprice, N. Canci, A. Candela, H. Cao, M. Cariello, P. Cavalcante, A. Chavarria, A. Chepurnov, A.G. Cocco, L. Crippa, D. DAngelo, M. D’Incecco, S. Davini, M. De Deo, A. Derbin, F. Di Eusanio, G. Di Pietro, E. Edkins, A. Empl, A. Fan, G. Fiorillo, K. Fomenko, G. Forster, D. Franco, F. Gabriele, C. Galbiati, A. Goretti, L. Grandi, M. Gromov, M. Guan, Y. Guardincerri, B. Hackett, K. Herner, P. Humble, E.V. Hungerford, Al. Ianni, An. Ianni, C. Joliet, K. Keeter, C. Kendziora, S. Kidner, V. Kobychev, G. Koh, D. Korablev, G. Korga, A. Kurlej, P. Li, B. Loer, P. Lombardi, C. Love, L. Ludhova, S. Luitz, Y. Ma, I. Machulin, A. Mandarano, S. Mari, J. Maricic, C.J. Martoff, A. Meregaglia, E. Meroni, R. Milincic, D. Montanari, M. Montuschi, M.E. Monzani, P. Mosteiro, B. Mount, V. Muratova, P. Musico, A. Nelson, M. Okounkova, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, E. Pantic, L. Papp, S. Parmeggiano, R. Parsells, K. Pelczar, N. Pelliccia, S. Perasso, F. Perfetto, A. Pocar, S. Pordes, H. Qian, K. Randle, G. Ranucci, A. Razeto, B. Reinhold, A. Romani, B. Rossi, N. Rossi, S.D. Rountree, D. Sablone, P. Saggese, R. Saldanha, W. Sands, E. Segreto, D. Semenov, E. Shields, M. Skorokhvatov, O. Smirnov, A. Sotnikov, Y. Suvarov, R. Tartaglia, J. Tatarowicz, G. Testera, A. Tonazzo, E. Unzhakov, R.B. Vogelaar, M. Wada, H. Wang, Y. Wang, A. Watson, R. Westerdale, M. Wojcik, A. Wright, J. Xu, C. Yang, J. Yoo, S. Zavatarelli, G. Zuzel, Agnes, P., Alton, D., Arisaka, K., Back, H. O., Baldin, B., Biery, K., Bonfini, G., Bossa, M., Brigatti, A., Brodsky, J., Budano, F., Cadonati, L., Calaprice, F., Canci, N., Candela, A., Cao, H., Cariello, M., Cavalcante, P., Chavarria, A., Chepurnov, A., Cocco, A. G., Crippa, L., Dangelo, D., D’Incecco, M., Davini, S., De Deo, M., Derbin, A., Di Eusanio, F., Di Pietro, G., Edkins, E., Empl, A., Fan, A., Fiorillo, Giuliana, Fomenko, K., Forster, G., Franco, D., Gabriele, F., Galbiati, C., Goretti, A., Grandi, L., Gromov, M., Guan, M., Guardincerri, Y., Hackett, B., Herner, K., Humble, P., Hungerford, E. V., Ianni, A., Joliet, C., Keeter, K., Kendziora, C., Kidner, S., Kobychev, V., Koh, G., Korablev, D., Korga, G., Kurlej, A., Li, P., Loer, B., Lombardi, P., Love, C., Ludhova, L., Luitz, S., Ma, Y., Machulin, I., Mandarano, A., Mari, S., Maricic, J., Martoff, C. J., Meregaglia, A., Meroni, E., Meyers, P. D., Milincic, R., Montanari, D., Montuschi, M., Monzani, M. E., Mosteiro, P., Mount, B., Muratova, V., Musico, P., Nelson, A., Okounkova, M., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Pantic, E., Papp, L., Parmeggiano, S., Parsells, R., Pelczar, K., Pelliccia, N., Perasso, S., Perfetto, F., Pocar, A., Pordes, S., Qian, H., Randle, K., Ranucci, G., Razeto, A., Reinhold, B., Romani, A., Rossi, B., Rossi, N., Rountree, S. D., Sablone, D., Saggese, P., Saldanha, R., Sands, W., Segreto, E., Semenov, D., Shields, E., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Suvarov, Y., Tartaglia, R., Tatarowicz, J., Testera, G., Tonazzo, A., Unzhakov, E., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Watson, A., Westerdale, R., Wojcik, M., Wright, A., Xu, J., Yang, C., Yoo, J., Zavatarelli, S., Zuzel, G., Mari, Stefano Maria, and The Darkside, Collaboration
Subjects: Physics, Cryostat, Argon, Time projection chamber, chemistry.chemical_element, WIMP Argon Programme, Scintillator, Physics and Astronomy(all), Nuclear physics, Physics and Astronomy (all), chemistry, WIMP, pacs:95.35.+d, 29.40.Mc, Neutron, Cherenkov radiation
Abstract: DarkSide-50 is a two phase argon TPC for direct dark matter detection which is installed at the Gran Sasso underground laboratory, Italy. DarkSide-50 has a 50-kg active volume and will make use of underground argon low in 39 Ar. The TPC is installed inside an active neutron veto made with boron-loaded high radiopurity liquid scintillator. The neutron veto is installed inside a 1000 m 3 water Cherenkov muon veto. The DarkSide-50 TPC and cryostat are assembled in two radon-free clean rooms to reduce radioactive contaminants. The overall design aims for a background free exposure after selection cuts are applied. The expected sensitivity for WIMP-nucleon cross section is of the order of 10 −45 cm 2 for WIMP masses around 100 GeV/c 2 . The commissioning and performance of the detector are described. Details of the low-radioactivity underground argon and other unique features of the projects are reported.
Published: 2015

29. Measurement of theH1(γ, π0)cross section near threshold

Author: J. M. Vogt, E.C. Booth, D. M. Skopik, Emil Hallin, R. Igarashi, J.C. Bergstrom, K. Keeter, and G. A. Retzlaff
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, Pion, Meson, Hadron, Elementary particle, Nuclear cross section, Atomic physics, Multipole expansion, Boson
Abstract: The cross section for the reaction {sup 1}H({gamma},{pi}{sup 0}) has been measured using tagged photons in the threshold region (144.7{endash}169.3 MeV). The total cross section, augmented by angular distribution information, is used to deduce the {ital S}-wave multipole {ital E}{sub 0+}. Extrapolation to threshold yields {ital E}{sub 0+}=({minus}1.32{plus_minus}0.05{plus_minus}0.06){times}10{sup {minus}3}/{ital m}{sub {pi}}, in disagreement with earlier estimates. Suppression of {ital E}{sub 0+} near the {pi}{sup +} threshold is confirmed, in approximate agreement with recent calculations. {copyright} {ital 1996 The American Physical Society.}
Published: 1996
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30. Light yield in DarkSide-10 : a prototype two-phase argon TPC for dark matter searches

Author: M. D. Skorokhvatov, L. Grandi, Marc S. Seigar, A. G. Cocco, A. Fan, Aldo Romani, S. Kidner, I. N. Machulin, C. Salvo, E. de Haas, D. Semenov, A. Nelson, N. Rossi, Marco Pallavicini, K. Arisaka, D. D'Angelo, E. V. Hungerford, E. V. Unzhakov, G. Fiorillo, Y. Meng, C. Ghag, G. Guray, A. Sotnikov, J. Thompson, G. Bonfini, C. L. Kendziora, W. Sands, F. Gabriele, R. B. Vogelaar, J. Brodsky, P. Saggese, C. Condon, P. Beltrame, S. Davini, B. J. Mount, C. Ghiano, M. Guan, A. Candela, P. J. Mosteiro, David B. Cline, R. Tartaglia, E. Meroni, H. O. Back, K. Keeter, S. Gazzana, M. Zehfus, Peter Daniel Meyers, An. Ianni, Laura Cadonati, F. Perfetto, A. Nemtzow, D. Korablev, Y. Suvorov, S. Westerdale, Hui Wang, A. V. Derbin, A. Brigatti, G. Koh, M. Montuschi, Livia Ludhova, V. N. Muratova, Thomas Alexander, I. Dratchnev, Y. Q. Ma, A. M. Goretti, A. Razeto, N. N. Nurakhov, R. Saldanha, A. S. Chepurnov, C. J. Martoff, J. Tatarowicz, G. Testera, Frank Calaprice, A. E. Chavarria, Cristiano Galbiati, L. Lukyanchenko, G. Zuzel, Fausto Ortica, M. Orsini, C. Guo, Al. Ianni, A. Teymourian, L. Perasso, H. Cao, Gioacchino Ranucci, W. Zhong, Sandra Zavatarelli, G. Korga, P. X. Li, D. Alton, A.V. Etenko, E. Pantic, Austin P. Lund, M. Gromov, R. Parsells, P. Cavalcante, G. Di Pietro, A. Empl, N. Pelliccia, J. Maricic, E. Shields, C. Love, T. Mohayai, Paolo Lombardi, S. V. Sukhotin, A. Wright, V. V. Kobychev, K. Lung, B. Loer, Jay Burton Benziger, Chung-Yao Yang, Lawrence Pinsky, A. Kayunov, D. Montanari, D. Durben, A. Pocar, Jilei Xu, O. Smirnov, S. Parmeggiano, Marcin Wójcik, S. Pordes, K. Fomenko, Alexander, T., Alton, D., Arisaka, K., Back, H. O., Beltrame, P., Benziger, J., Bonfini, G., Brigatti, A., Brodsky, J., Cadonati, L., Calaprice, F., Candela, A., Cao, H., Cavalcante, P., Chavarria, A., Chepurnov, A., Cline, D., Cocco, A. G., Condon, C., D'Angelo, D., Davini, S., Haas, E. D., Derbin, A., Pietro, G. D., Dratchnev, I., Durben, D., Empl, A., Etenko, A., Fan, A., Fiorillo, Giuliana, Fomenko, K., Gabriele, F., Galbiati, C., Gazzana, S., Ghag, C., Ghiano, C., Goretti, A., Grandi, L., Gromov, M., Guan, M., Guo, C., Guray, G., Hungerford, E. V., Ianni, A., Kayunov, A., Keeter, K., Kendziora, C., Kidner, S., Kobychev, V., Koh, G., Korablev, D., Korga, G., Shields, E., Li, P., Loer, B., Lombardi, P., Love, C., Ludhova, L., Lukyanchenko, L., Lund, A., Lung, K., Ma, Y., Machulin, I., Maricic, J., Martoff, C. J., Meng, Y., Meroni, E., Meyers, P. D., Mohayai, T., Montanari, D., Montuschi, M., Mosteiro, P., Mount, B., Muratova, V., Nelson, A., Nemtzow, A., Nurakhov, N., Orsini, M., Ortica, F., Pallavicini, M., Pantic, E., Parmeggiano, S., Parsells, R., Pelliccia, N., Perasso, L., Perfetto, F., Pinsky, L., Pocar, A., Pordes, S., Ranucci, G., Razeto, A., Romani, A., Rossi, N., Saggese, P., Saldanha, R., Salvo, C., Sands, W., Seigar, M., Semenov, D., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Tatarowicz, J., Testera, G., Teymourian, A., Thompson, J., Unzhakov, E., Vogelaar, R. B., Wang, H., Westerdale, S., Wojcik, M., Wright, A., Xu, J., Yang, C., Zavatarelli, S., Zehfus, M., Zhong, W., and Zuzel, G.
Subjects: Physics::Instrumentation and Detectors, Dark matter, light yield, FOS: Physical sciences, chemistry.chemical_element, dark matter, law.invention, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), XENON, law, DEPENDENCE, LIQUID ARGON, PARTICLES, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, Scintillation, Time projection chamber, Argon, Gamma ray, Astronomy and Astrophysics, Laser, time projection chamber, chemistry, Yield (chemistry), Scintillation counter, argon, High Energy Physics::Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, photoelectron yield
Abstract: As part of the DarkSide program of direct dark matter searches using liquid argon TPCs, a prototype detector with an active volume containing 10 kg of liquid argon, DarkSide-10, was built and operated underground in the Gran Sasso National Laboratory in Italy. A critically important parameter for such devices is the scintillation light yield, as photon statistics limits the rejection of electron-recoil backgrounds by pulse shape discrimination. We have measured the light yield of DarkSide-10 using the readily-identifiable full-absorption peaks from gamma ray sources combined with single-photoelectron calibrations using low-occupancy laser pulses. For gamma lines of energies in the range 122-1275 keV, we get consistent light yields averaging 8.887+-0.003(stat)+-0.444(sys) p.e./keVee. With additional purification, the light yield measured at 511 keV increased to 9.142+-0.006(stat) p.e./keVee., 10 pages, 7 figures, Accepted for publication in Astroparticle Physics
Published: 2013

31. Negative pion photoproduction fromN15in the region of the Δ resonance

Author: W.H.A. Hesselink, Emil Hallin, T. Gresko, Jinsook Kim, J. Shaw, K. Keeter, J.C. Bergstrom, Hyun Tai Chung, J. M. Vogt, D. M. Skopik, B. E. Norum, H. Choi, T.P. Welch, H.S. Kaplan, H.B. van den Brink, J.H. Mitchell, P. Stoler, and T. Kobayashi
Subjects: Nuclear physics, Physics, Scattering cross-section, Nuclear and High Energy Physics, Pion, Impulse (physics), Photon energy, Atomic physics, Wave function, Delta baryon
Abstract: The differential cross section for the reaction {sup 15}N({gamma},{pi}{sup {minus}}){sup 15}O{sub gs} has been measured at a photon energy of 220 MeV. We find a discrepancy between our data and a calculation based on the distorted wave impulse approximation which uses phenomenological 1{ital p}-shell wave functions. A second calculation, in which higher-shell configurations are included in the wave functions, fails to correct the discrepancy and is even more at odds with the data.
Published: 1995
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32. Winter Weather Forecasting throughout the Eastern United States. Part II: An Operational Perspective of Cyclogenesis

Author: Eugene P. Auciello, James J. Gurka, Laurence G. Lee, Jeff S. Waldstreicher, Steven Businger, Kermit K. Keeter, and Anthony F. Gigi
Subjects: Atmospheric Science, Geography, Meteorology, Climatology, Perspective (graphical), Cyclogenesis, Winter storm, Mesoscale meteorology, Large population, Precipitation, National weather service, Winter weather
Abstract: The complex combination of synoptic and mesoscale interactions, topographic influences, and large population densities poses a multitude of challenging problems to winter weather forecasters throughout the eastern United States. Over the years, much has been learned about the structure, evolution, and attendant precipitation within winter storms. As a result, numerous operational procedures, forecast applications, and objective techniques have been developed at National Weather Service offices to assess the potential for, and forecast, hazardous winter weather. A companion paper by Maglaras et al. provided an overview of the challenge of forecasting winter weather in the eastern United States. This paper focuses on the problem of cyclogenesis from an operational perspective. Since pattern recognition is an important tool employed by field forecasters, a review of several conceptual models of cyclogenesis often observed in the east is presented. These include classical Miller type A and B cyclogen...
Published: 1995
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33. Winter Weather Forecasting throughout the Eastern United States. Part III: The Effects of Topography and the Variability of Winter Weather in the Carolinas and Virginia

Author: Kermit K. Keeter, Jeff S. Waldstreicher, Steven Businger, and Laurence G. Lee
Subjects: Part iii, Gulf Stream, Atmospheric Science, Frontogenesis, Climatology, Environmental science, Precipitation, Snow, Coastal flood, Latitude, Winter weather
Abstract: Winter weather in the Carolinas and Virginia is highly variable and influenced by the area's diverse topography and geography. The Gulf Stream, the highest mountains in the Appalachians, the largest coastal lagoonal system in the United States, and the region's southern latitude combine to produce an array of weather events, particularly during the winter season, that pose substantial challenges to forecasters. The influence of the region's topography upon the evolution of winter weather systems, such as cold-air damming and frontogenesis, is discussed. Conceptual models and specific case studies are examined to illustrate the region's vast assortment of winter weather hazards including prolonged heavy sleet, heavy snow, strong convection, and coastal flooding. The weather associated with these topographic and meteorological features is often difficult for operational dynamical models to resolve. Forecasting precipitation type within the region can be especially difficult. An objective technique ...
Published: 1995
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34. Defect measurements of CdZnTe detectors using I-DLTS, TCT, I-V, C-V and γ-ray spectroscopy

Author: K. Keeter, Aleksey E. Bolotnikov, Zhong-Ming Li, Ralph B. James, Rubi Gul, and Rene G. Rodriguez
Subjects: Physics, Optics, Deep-level transient spectroscopy, business.industry, Band gap, Detector, Optoelectronics, Gamma spectroscopy, business, Spectroscopy, Capacitance, Crystallographic defect, Particle detector
Abstract: In this work we measured the crystal defect levels and tested the performance of CdZnTe detectors by diverse methodologies, viz., Current Deep Level Transient Spectroscopy (I-DLTS), Transient Current Technique (TCT), Current and Capacitance versus Voltage measurements (I-V and C-V), and gamma-ray spectroscopy. Two important characteristics of I-DLTS technique for advancing this research are (1) it is applicable for high-resistivity materials (>10{sup 6} {Omega}-cm), and, (2) the minimum temperature for measurements can be as low as 10 K. Such low-temperature capability is excellent for obtaining measurements at shallow levels. We acquired CdZnTe crystals grown by different techniques from two different vendors and characterized them for point defects and their response to photons. I-DLTS studies encompassed measuring the parameters of the defects, such as the energy levels in the band gap, the carrier capture cross-sections and their densities. The current induced by the laser-generated carriers and the charge collected (or number of electrons collected) were obtained using TCT that also provides the transport properties, such as the carrier life time and mobility of the detectors under study. The detector's electrical characteristics were explored, and its performance tested using I-V, C-V and gamma-ray spectroscopy.
Published: 2008
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35. Two-deuteron photodisintegration of4HeatEγ=150–250MeV

Author: B. J. Rice, N. R. Kolb, G. A. Retzlaff, E. A. Wulf, R. S. Canon, H. R. Weller, Gerald Feldman, K. Keeter, D. M. Skopik, R. E. Pywell, and C. Mueller
Subjects: Physics, Nuclear and High Energy Physics, Degree (graph theory), Deuterium, Photodisintegration, Inverse, Order (ring theory), Absorption (logic), Atomic physics, Legendre polynomials, Energy (signal processing)
Abstract: We have performed a measurement of the cross section for the ${}^{4}\mathrm{He}(\ensuremath{\gamma},dd)$ reaction with photon energies between 150 and 250 MeV. Both reaction particles were detected in coincidence. We obtained absolute cross sections at six angles and two energy bins (150\char21{}190 MeV and 190\char21{}250 MeV). A Legendre polynomial fit to the angular distribution shows a ${\mathrm{sin}}^{2}\ensuremath{\theta}$ distribution which suggests the isospin-forbidden $E1$ transition. However, a transition matrix element (TME) analysis using only strictly allowed transitions shows that the angular distribution can be described by just two TMEs: $E2$ s- and d-wave absorption on the D state of ${}^{4}\mathrm{He}.$ We performed an inverse direct-capture calculation in order to determine if the D state could contribute to such a high degree to the cross section. This calculation indicates that 90% of the cross section arises from absorption on the D state but fails to reproduce the observed ${\mathrm{sin}}^{2}\ensuremath{\theta}$ angular distribution.
Published: 2000
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36. Myeloid cell deficiency of the inflammatory transcription factor Stat4 protects long-term synaptic plasticity from the effects of a high-fat, high-cholesterol diet

Author: Xiao-lei Zhang, Callie M. Hollander, Mohammad Yasir Khan, Melinee D’silva, Haoqin Ma, Xinyuan Yang, Robin Bai, Coles K. Keeter, Elena V. Galkina, Jerry L. Nadler, and Patric K. Stanton
Subjects: Biology (General), QH301-705.5
Abstract: Abstract Neuroinflammation is associated with neurodegenerative diseases, including Alzheimer’s and Parkinson’s. The cytokine interleukin-12 activates signal transducer and activator of transcription 4 (Stat4), and consumption of a high-fat, high-cholesterol diet (HFD-C) and Stat4 activity are associated with inflammation, atherosclerosis, and a diabetic metabolic phenotype. In studies of in vitro hippocampal slices from control Stat4 fl/fl Ldlr −/− mice fed a HFD-C diabetogenic diet, we show that Schaffer collateral-CA1 synapses exhibited larger reductions in activity-dependent, long-term potentiation (LTP) of synaptic transmission, compared to mice fed a standard diet. Glucose tolerance and insulin sensitivity shifts produced by HFD-C diet were reduced in Stat4 ΔLysM Ldlr −/− mice compared to Stat4 fl/fl Ldlr −/− controls. Stat4 ΔLysM Ldlr −/− mice, which lack Stat4 under control of the LysM Cre promoter, were resistant to HFD-C induced impairments in LTP. In contrast, Schaffer collateral-CA1 synapses in Stat4 ΔLysM Ldlr −/− mice fed the HFD-C diet showed larger LTP than control Stat4 fl/fl Ldlr −/− mice. Expression of a number of neuroinflammatory and synaptic plasticity genes was reduced by HFD-C diet in control mice, and less affected by HFD-C diet in Stat4 ΔLysM Ldlr −/− mice. These data suggest that suppression of Stat4 activation may protect against effects of Western diet on cognition, type 2 diabetes, and reduce risk of Alzheimer’s disease and other neurodegenerative disorders associated with neuroinflammation.
Published: 2023
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37. Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50.

Author: Agnes P, Albuquerque IFM, Alexander T, Alton AK, Ave M, Back HO, Batignani G, Biery K, Bocci V, Bonivento WM, Bottino B, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Campos MD, Canci N, Caravati M, Cargioli N, Cariello M, Carlini M, Cataudella V, Cavalcante P, Cavuoti S, Chashin S, Chepurnov A, Cicalò C, Covone G, D'Angelo D, Davini S, De Candia A, De Cecco S, De Filippis G, De Rosa G, Derbin AV, Devoto A, D'Incecco M, Dionisi C, Dordei F, Downing M, D'Urso D, Fiorillo G, Franco D, Gabriele F, Galbiati C, Ghiano C, Giganti C, Giovanetti GK, Goretti AM, Grilli di Cortona G, Grobov A, Gromov M, Guan M, Gulino M, Hackett BR, Herner K, Hessel T, Hosseini B, Hubaut F, Hungerford EV, Ianni A, Ippolito V, Keeter K, Kendziora CL, Kimura M, Kochanek I, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lissia M, Longo G, Lychagina O, Machulin IN, Mapelli LP, Mari SM, Maricic J, Messina A, Milincic R, Monroe J, Morrocchi M, Mougeot X, Muratova VN, Musico P, Nozdrina AO, Oleinik A, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pelczar K, Pelliccia N, Piacentini S, Pocar A, Poehlmann DM, Pordes S, Poudel SS, Pralavorio P, Price DD, Ragusa F, Razeti M, Razeto A, Renshaw AL, Rescigno M, Rode J, Romani A, Sablone D, Samoylov O, Sands W, Sanfilippo S, Sandford E, Savarese C, Schlitzer B, Semenov DA, Shchagin A, Sheshukov A, Skorokhvatov MD, Smirnov O, Sotnikov A, Stracka S, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Unzhakov EV, Vishneva A, Vogelaar RB, Wada M, Wang H, Wang Y, Westerdale S, Wojcik MM, Xiao X, Yang C, and Zuzel G
Abstract: We present a search for dark matter particles with sub-GeV/c^{2} masses whose interactions have final state electrons using the DarkSide-50 experiment's (12 306±184) kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section σ[over ¯]_{e}, the axioelectric coupling constant g_{Ae}, and the dark photon kinetic mixing parameter κ. We also set the first dark matter direct-detection constraints on the mixing angle |U_{e4}|^{2} for keV/c^{2} sterile neutrinos.
Published: 2023
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38. Search for Dark-Matter-Nucleon Interactions via Migdal Effect with DarkSide-50.

Author: Agnes P, Albuquerque IFM, Alexander T, Alton AK, Ave M, Back HO, Batignani G, Biery K, Bocci V, Bonivento WM, Bottino B, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Campos MD, Canci N, Caravati M, Cargioli N, Cariello M, Carlini M, Cataudella V, Cavalcante P, Cavuoti S, Chashin S, Chepurnov A, Cicalò C, Covone G, D'Angelo D, Davini S, De Candia A, De Cecco S, De Filippis G, De Rosa G, Derbin AV, Devoto A, D'Incecco M, Dionisi C, Dordei F, Downing M, D'Urso D, Fairbairn M, Fiorillo G, Franco D, Gabriele F, Galbiati C, Ghiano C, Giganti C, Giovanetti GK, Goretti AM, Grilli di Cortona G, Grobov A, Gromov M, Guan M, Gulino M, Hackett BR, Herner K, Hessel T, Hosseini B, Hubaut F, Hungerford EV, Ianni A, Ippolito V, Keeter K, Kendziora CL, Kimura M, Kochanek I, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lissia M, Longo G, Lychagina O, Machulin IN, Mapelli LP, Mari SM, Maricic J, Messina A, Milincic R, Monroe J, Morrocchi M, Mougeot X, Muratova VN, Musico P, Nozdrina AO, Oleinik A, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pelczar K, Pelliccia N, Piacentini S, Pocar A, Poehlmann DM, Pordes S, Poudel SS, Pralavorio P, Price DD, Ragusa F, Razeti M, Razeto A, Renshaw AL, Rescigno M, Rode J, Romani A, Sablone D, Samoylov O, Sandford E, Sands W, Sanfilippo S, Savarese C, Schlitzer B, Semenov DA, Shchagin A, Sheshukov A, Skorokhvatov MD, Smirnov O, Sotnikov A, Stracka S, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Unzhakov EV, Vishneva A, Vogelaar RB, Wada M, Wang H, Wang Y, Westerdale S, Wojcik MM, Xiao X, Yang C, and Zuzel G
Abstract: Dark matter elastic scattering off nuclei can result in the excitation and ionization of the recoiling atom through the so-called Migdal effect. The energy deposition from the ionization electron adds to the energy deposited by the recoiling nuclear system and allows for the detection of interactions of sub-GeV/c^{2} mass dark matter. We present new constraints for sub-GeV/c^{2} dark matter using the dual-phase liquid argon time projection chamber of the DarkSide-50 experiment with an exposure of (12 306±184) kg d. The analysis is based on the ionization signal alone and significantly enhances the sensitivity of DarkSide-50, enabling sensitivity to dark matter with masses down to 40 MeV/c^{2}. Furthermore, it sets the most stringent upper limit on the spin independent dark matter nucleon cross section for masses below 3.6 GeV/c^{2}.
Published: 2023
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39. Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment.

Author: Agnes P, Albuquerque IFM, Alexander T, Alton AK, Araujo GR, Asner DM, Ave M, Back HO, Baldin B, Batignani G, Biery K, Bocci V, Bonfini G, Bonivento W, Bottino B, Budano F, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Canci N, Candela A, Caravati M, Cariello M, Carlini M, Carpinelli M, Catalanotti S, Cataudella V, Cavalcante P, Cavuoti S, Cereseto R, Chepurnov A, Cicalò C, Cifarelli L, Cocco AG, Covone G, D'Angelo D, D'Incecco M, D'Urso D, Davini S, De Candia A, De Cecco S, De Deo M, De Filippis G, De Rosa G, De Vincenzi M, Demontis P, Derbin AV, Devoto A, Di Eusanio F, Di Pietro G, Dionisi C, Downing M, Edkins E, Empl A, Fan A, Fiorillo G, Fomenko K, Franco D, Gabriele F, Gabrieli A, Galbiati C, Garcia Abia P, Ghiano C, Giagu S, Giganti C, Giovanetti GK, Gorchakov O, Goretti AM, Granato F, Gromov M, Guan M, Guardincerri Y, Gulino M, Hackett BR, Hassanshahi MH, Herner K, Hosseini B, Hughes D, Humble P, Hungerford EV, Ianni A, Ianni A, Ippolito V, James I, Johnson TN, Kahn Y, Keeter K, Kendziora CL, Kochanek I, Koh G, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lisanti M, Lissia M, Loer B, Longo G, Ma Y, Machado AA, Machulin IN, Mandarano A, Mapelli L, Mari SM, Maricic J, Martoff CJ, Messina A, Meyers PD, Milincic R, Mishra-Sharma S, Monte A, Morrocchi M, Mount BJ, Muratova VN, Musico P, Nania R, Navrer Agasson A, Nozdrina AO, Oleinik A, Orsini M, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pazzona F, Pelczar K, Pelliccia N, Pesudo V, Picciau E, Pocar A, Pordes S, Poudel SS, Pugachev DA, Qian H, Ragusa F, Razeti M, Razeto A, Reinhold B, Renshaw AL, Rescigno M, Riffard Q, Romani A, Rossi B, Rossi N, Sablone D, Samoylov O, Sands W, Sanfilippo S, Sant M, Santorelli R, Savarese C, Scapparone E, Schlitzer B, Segreto E, Semenov DA, Shchagin A, Sheshukov A, Singh PN, Skorokhvatov MD, Smirnov O, Sotnikov A, Stanford C, Stracka S, Suffritti GB, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Trinchese P, Unzhakov EV, Verducci M, Vishneva A, Vogelaar B, Wada M, Waldrop TJ, Wang H, Wang Y, Watson AW, Westerdale S, Wojcik MM, Wojcik M, Xiang X, Xiao X, Yang C, Ye Z, Zhu C, Zichichi A, and Zuzel G
Abstract: We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized electrons extracted from the liquid argon target. The detector has a very high trigger probability for these signals, allowing for an analysis threshold of three extracted electrons, or approximately 0.05 keVee. We calculate the expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100 MeV/c^{2}.
Published: 2018
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40. Low-Mass Dark Matter Search with the DarkSide-50 Experiment.

Author: Agnes P, Albuquerque IFM, Alexander T, Alton AK, Araujo GR, Asner DM, Ave M, Back HO, Baldin B, Batignani G, Biery K, Bocci V, Bonfini G, Bonivento W, Bottino B, Budano F, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Canci N, Candela A, Caravati M, Cariello M, Carlini M, Carpinelli M, Catalanotti S, Cataudella V, Cavalcante P, Cavuoti S, Cereseto R, Chepurnov A, Cicalò C, Cifarelli L, Cocco AG, Covone G, D'Angelo D, D'Incecco M, D'Urso D, Davini S, De Candia A, De Cecco S, De Deo M, De Filippis G, De Rosa G, De Vincenzi M, Demontis P, Derbin AV, Devoto A, Di Eusanio F, Di Pietro G, Dionisi C, Downing M, Edkins E, Empl A, Fan A, Fiorillo G, Fomenko K, Franco D, Gabriele F, Gabrieli A, Galbiati C, Garcia Abia P, Ghiano C, Giagu S, Giganti C, Giovanetti GK, Gorchakov O, Goretti AM, Granato F, Gromov M, Guan M, Guardincerri Y, Gulino M, Hackett BR, Hassanshahi MH, Herner K, Hosseini B, Hughes D, Humble P, Hungerford EV, Ianni A, Ianni A, Ippolito V, James I, Johnson TN, Kahn Y, Keeter K, Kendziora CL, Kochanek I, Koh G, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lisanti M, Lissia M, Loer B, Longo G, Ma Y, Machado AA, Machulin IN, Mandarano A, Mapelli L, Mari SM, Maricic J, Martoff CJ, Messina A, Meyers PD, Milincic R, Mishra-Sharma S, Monte A, Morrocchi M, Mount BJ, Muratova VN, Musico P, Nania R, Navrer Agasson A, Nozdrina AO, Oleinik A, Orsini M, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pazzona F, Pelczar K, Pelliccia N, Pesudo V, Pocar A, Pordes S, Poudel SS, Pugachev DA, Qian H, Ragusa F, Razeti M, Razeto A, Reinhold B, Renshaw AL, Rescigno M, Riffard Q, Romani A, Rossi B, Rossi N, Sablone D, Samoylov O, Sands W, Sanfilippo S, Sant M, Santorelli R, Savarese C, Scapparone E, Schlitzer B, Segreto E, Semenov DA, Shchagin A, Sheshukov A, Singh PN, Skorokhvatov MD, Smirnov O, Sotnikov A, Stanford C, Stracka S, Suffritti GB, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Trinchese P, Unzhakov EV, Verducci M, Vishneva A, Vogelaar B, Wada M, Waldrop TJ, Wang H, Wang Y, Watson AW, Westerdale S, Wojcik MM, Wojcik M, Xiang X, Xiao X, Yang C, Ye Z, Zhu C, Zichichi A, and Zuzel G
Abstract: We present the results of a search for dark matter weakly interacting massive particles (WIMPs) in the mass range below 20 GeV/c^{2} using a target of low-radioactivity argon with a 6786.0 kg d exposure. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso. The analysis is based on the ionization signal, for which the DarkSide-50 time projection chamber is fully efficient at 0.1 keVee. The observed rate in the detector at 0.5 keVee is about 1.5 event/keVee/kg/d and is almost entirely accounted for by known background sources. We obtain a 90% C.L. exclusion limit above 1.8 GeV/c^{2} for the spin-independent cross section of dark matter WIMPs on nucleons, extending the exclusion region for dark matter below previous limits in the range 1.8-6 GeV/c^{2}.
Published: 2018
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