Light yield in DarkSide-10: A prototype two-phase argon TPC for dark matter searches

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, Hua; Cavalcante, P.; Chavarría, Á.; Chepurnov, A.; Cline, D.; Cocco, A. G.; Condon, C.; D’Angelo, D.; Davini, S.; Haas, E. de; Derbin, A.; Pietro, G. Di; Dratchnev, I.; Durben, Dan J.; Empl, A.; Etenko, A.; Fan, A.; Fiorillo, G.; Fomenko, K.; Gabriele, F.; Galbiati, C.; Gazzana, S.; Ghag, C.; Ghiano, C.; Goretti, A.; Grandi, L.; Gromov, M.; Guan, Mengyun; Guo, Cong; Guray, G.; Hungerford, E.; Ianni, A.; Ianni, An.; Kayunov, A.; Keeter, K. J.; Kendziora, C. L.; Kidner, S.; Kobychev, V.; Koh, G.; Korablëv, D.; Korga, G.; Shields, E.; Li, P.; Loer, B.; Lombardi, P.; Love, Christina; Ludhová, L.; Lukyanchenko, L.; Lund, Alan; 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. J.; Muratova, V.; Nelson, A.; Nemtzow, A.; Нурахов, Н. Н.; 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, Paolo; Saldanha, R.; Salvo, C.; Sands, W.; Seigar, Marc S.; 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.; Wójcik, Marcin; Wright, A.; Xu, J.; Yang, Changgen; Zavatarelli, S.; Zehfus, Michael; Zhong, Weili; Zuzel, G.

doi:10.1016/j.astropartphys.2013.08.004

Cited by 51 publications

(81 citation statements)

References 18 publications

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“…These detectors are DarkSide-10 [9], DarkSide-50 [4], DarkSide-20k [10,11], and ARGO [12]. The last step in this experimental program will have several hundred tonnes of fiducial mass and will be able to reach the detection sensitivity required to observe solar neutrino signals, the so-called "neutrino floor".…”

Section: G4ds -Geant4-based Darkside Monte Carlo Simulation Toolkitmentioning

confidence: 99%

Simulation of argon response and light detection in the DarkSide-50 dual phase TPC

Agnes¹,

Albuquerque²,

Alexander³

et al. 2017

J. Inst.

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A: A Geant4-based Monte Carlo package named G4DS has been developed to simulate the response of DarkSide-50, an experiment operating since 2013 at LNGS, designed to detect WIMP interactions in liquid argon. In the process of WIMP searches, DarkSide-50 has achieved two fundamental milestones: the rejection of electron recoil background with a power of ∼10 7 , using the pulse shape discrimination technique, and the measurement of the residual 39 Ar contamination in underground argon, ∼3 orders of magnitude lower with respect to atmospheric argon. These results rely on the accurate simulation of the detector response to the liquid argon scintillation, its ionization, and electron-ion recombination processes. This work provides a complete overview of the DarkSide Monte Carlo and of its performance, with a particular focus on PARIS, the custommade liquid argon response model.

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Section: G4ds -Geant4-based Darkside Monte Carlo Simulation Toolkitmentioning

confidence: 99%

Simulation of argon response and light detection in the DarkSide-50 dual phase TPC

Agnes¹,

Albuquerque²,

Alexander³

et al. 2017

J. Inst.

Self Cite

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“…To this purpose a particular effort has been dedicated in procuring argon from underground reservoirs: underground argon (UAr), protected from cosmic ray activation, is significantly reduced in 39 Ar content at least of 2÷3 orders of magnitude respect to the AAr [11,12]. The DarkSide project foresees a multi-stage approach and after a first operation of a 10 kg detector has been carried out [13], the DarkSide-50 (DS-50) detector has been operating underground in the Hall C of LNGS since 2013. After a first step with the TPC detector initially filled with the AAr [14], the DS-50 filled with argon derived from underground sources (with a 46 kg fiducial mass TPC) is still currently running after reaching a background-free dark matter search with a sensitivity of 1.14×10 −44 cm 2 for a 100 GeV WIMP mass [15].…”

Section: The Darkside Programmentioning

confidence: 99%

Long term operation with the DarkSide-50 detector

Canci¹

2020

J. Inst.

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A: DarkSide is a staged experimental project based on radiopure argon aiming at direct dark matter detection. The DarkSide-50 (DS-50) detector is currently operating underground at the Gran Sasso National Laboratory. DS-50 detector is a dual-phase, 50 kg, liquid argon timeprojection-chamber readout by 38 cryogenic PMTs (Hamamatsu R11065), surrounded by an active liquid scintillator veto and contained in a water Cherenkov detector acting as a muon veto. DS-50 has been been operating continuously since 2013, first with atmospheric argon and subsequently filled in 2015 with argon from an underground source, allowing a reduction of the 39 Ar isotope by more than a factor 1000. Features of the DS-50 detector are described, long term operations and stability are reported and its performances in scintillation light detection discussed. Results on dark matter searches obtained with DarkSide-50 detector are briefly reported.

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“…This class contained all relevant information about the event, including trace number, start time, width, τ 95 (the time taken for 95% of the signal to be detected), integrated charge in each phototube, number of photons detected by each phototube (using an input SPE calibration), whether any digitized points extended be- Figure 2.6: Single photoelectron peaks from G/NARRLI PMTs. The fitting function used is described in [6]. yond the dynamic range of the data acquisition system, the number of photons detected in the previous and subsequent events, and the fraction of light detected in the first 100 ns.…”

Section: Discussionmentioning

confidence: 99%

“…However one of the four had poor SPE resolution. The SPE peaks along with fits based on the methodology of [6] are shown in Fig. 2.6 The analog trigger, illustrated in Fig.…”

Section: Signal Readoutmentioning

confidence: 99%

A G/NARRLI Effort. Measuring the Ionization Yield of Low-Energy Nuclear Recoils in Liquid Argon

Joshi¹

2014

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Liquid argon has long been used for particle detection due to its attractive drift properties, ample abundance, and reasonable density. The response of liquid argon to lowenergy O(10 2 − 10 4 eV) interactions is, however, largely unexplored. Weakly interacting massive particles such as neutrinos and hypothetical dark-matter particles (WIMPs) are predicted to coherently scatter on atomic nuclei, leaving only an isolated low-energy nuclear recoil as evidence. The response of liquid argon to low-energy nuclear recoils must be studied to determine the sensitivity of liquid argon based detectors to these unobserved interactions. Detectors sensitive to coherent neutrino-nucleus scattering may be used to monitor nuclear reactors from a distance, to detect neutrinos from supernova, and to test the predicted behavior of neutrinos. Additionally, direct detection of hypothetical weakly interacting dark matter would be a large step toward understanding the substance that accounts for nearly 27% of the universe. In this dissertation I discuss a small dual-phase (liquid-gas) argon proportional scintillation counter built to study the low-energy regime and several novel calibration and characterization techniques developed to study the response of liquid argon to low-energy O(10 2 − 10 4 eV) interactions.

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Light yield in DarkSide-10: A prototype two-phase argon TPC for dark matter searches

Cited by 51 publications

References 18 publications

Simulation of argon response and light detection in the DarkSide-50 dual phase TPC

Simulation of argon response and light detection in the DarkSide-50 dual phase TPC

Long term operation with the DarkSide-50 detector

A G/NARRLI Effort. Measuring the Ionization Yield of Low-Energy Nuclear Recoils in Liquid Argon

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