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2. Possible evidence for the production of Ar$_2^{*-}$ metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches

Author

Buzulutskov, A., Frolov, E., Borisova, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, Physics - Atomic Physics
Abstract

Our recent studies of electroluminescence (EL) properties in two-phase argon detectors for dark matter searches have revealed the presence of unusual delayed pulses in the EL signal in the form of two slow components with time constants of about 5 and 50 $\mu$s. These components were shown to be present in the charge signal itself, which clearly indicates that drifting electrons are temporarily trapped on two states of metastable negative argon ions which have never been observed before. In this work, using the pressure dependence of the ratio of slow component contributions measured in experiment, it is deduced that these states are those of two types of metastable negative molecular ions, $\mathrm{Ar}_2^{*-}(b \ ^4\Sigma_u^-)$ and $\mathrm{Ar}_2^{*-}(a \ ^4\Sigma_g^+)$ for the higher and lower energy level respectively., Comment: 4 pages, 2 figures

Published
2023
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3. Unraveling the puzzle of slow components in gaseous argon of two-phase detectors for dark matter searches using Thick Gas Electron Multiplier

Author

Buzulutskov, A., Frolov, E., Borisova, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

The effect of proportional electroluminescence (EL) is used to record the primary ionization signal (S2) in the gas phase of two-phase argon detectors for dark matter particle (WIMP) searches and low-energy neutrino experiments. Our previous studies of EL time properties revealed the presence of two unusual slow components in S2 signal of two-phase argon detector, with time constants of about 4-5 $\mu$s and 50 $\mu$s. The puzzle of slow components is that their time constants and contributions to the overall signal increase with electric field (starting from a certain threshold), which cannot be explained by any of the known mechanisms of photon and electron emission in two-phase media. There are indications that these slow components result from delayed electrons, temporarily trapped during their drift in the EL gap on metastable negative argon ions of yet unknown nature. In this work, this hypothesis is confirmed by studying the time properties of electroluminescence in a Thick Gas Electron Multiplier (THGEM) coupled to the EL gap of two-phase argon detector. In particular, an unusual slow component in EL signal, similar to that observed in the EL gap, was observed in THGEM itself. In addition, with the help of THGEM operated in electron multiplication mode, the slow component was observed directly in the charge signal, confirming the effect of trapped electrons in S2 signal. These results will help to unravel the puzzle of slow components in two-phase argon detectors and thus to understand the background in low-mass WIMP searches., Comment: 11 pages, 14 figures

Published
2023
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4. First observation of neutral bremsstrahlung electroluminescence in liquid argon

Author

Bondar, A., Buzulutskov, A., Frolov, E., Borisova, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

A recent discovery of additional mechanism of electroluminescence (EL) in noble gases due to the neutral bremsstrahlung (NBrS) effect led to a prediction that NBrS EL should be present in noble liquids as well. A theoretical model of NBrS EL in noble liquids was developed accordingly in the frameworks of Cohen-Lekner and Atrazhev. In this work, we confirm this prediction: for the first time, visible-range EL has been observed in liquid argon at electric fields reaching 90~kV/cm, using Gas Electron Multiplier (GEM) and Thick GEM (THGEM) structures. Absolute light yields of the EL were measured and found to be in excellent agreement with the theory, provided that the momentum-transfer cross section of electron scattering is used for calculation of NBrS cross section (instead of the energy-transfer one)., Comment: 6 pages, 4 figures

Published
2023
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5. Sensitivity projections for a dual-phase argon TPC optimized for light dark matter searches through the ionization channel

Author

Agnes, P., Ahmad, I., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Amaudruz, P., Corona, M. Atzori, Auty, D. J., Ave, M., Avetisov, I. Ch., Avetisov, R. I., Azzolini, O., Back, H. O., Balmforth, Z., Barbarian, V., Olmedo, A. Barrado, Barrillon, P., Basco, A., Batignani, G., Berzin, E., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Capra, A., Caprioli, S., Caravati, M., Cárdenas-Montes, M., Cargioli, N., Carlini, M., Castello, P., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Chashin, S., Chepurnov, A., Chyhyrynets, E, Cicalò, C., Cifarelli, L., Cintas, D., Cocco, V., Vilda, E. Conde, Consiglio, L., Copello, S., Covone, G., Cross, S., Czudak, P., D'Aniello, M., D'Auria, S., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Pasquale, S., De Rosa, G., Dellacasa, G., Derbin, A. V., Devoto, A., Di Capua, F., Di Noto, L., Di Stefano, P., Dionisi, C., Dolganov, G., Dordei, F., Doria, L., Erjavec, T., Diaz, M. Fernandez, Fiorillo, G., Franceschi, A., Franchini, P., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Gahan, D., Galbiati, C., Gallina, G., Gallus, G., Garbini, M., Abia, P. Garcia, Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Casanueva, V. Goicoechea, Gola, A., Gorman, D., Diaz, R. Graciani, Grauso, G., di Cortona, G. Grilli, Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Gulino, M., Guo, C., Hackett, B. R., Hall, J. B., Hallin, A. L., Hamer, A., Helton, H., Haranczyk, M., Hessel, T., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Ianni, An., Ippolito, V., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kimura, M., Kochanek, I., Kondo, K., Korga, G., Koulosousas, S., Kubankin, A., Kuss, M., Kuźniak, M., La Commara, M., Lai, M., Guirriec, E. Le, Leason, E., Li, X., Lidey, L., Lipp, J., Lissia, M., Longo, G., Luzzi, L., Macfadyen, O., Machulin, I. N., Manthos, I., Mapelli, L., Margotti, A., Mari, S. M., Mariani, C., Maricic, J., Marini, A., Martínez, M., Martoff, C. J., Masoni, A., Mavrokoridis, K., Mazzi, A., McDonald, A. B., Messina, A., Milincic, R., Moggi, A., Moharana, A., Monroe, J., Morrocchi, M., Mozhevitina, E. N., Mróz, T., Muratova, V. N., Muscas, C., Musico, P., Nania, R., Napolitano, T., Nessi, M., Nieradka, G., Nikolopoulos, K., Nikulin, I., Nowak, J., Olchansky, K., Oleinik, A., Oleynikov, V., Organtini, P., de Solórzano, A. Ortiz, Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Pelczar, K., Pellegrino, C., Perotti, F., Pesudo, V., Piacentini, S., Pietropaolo, F., Pino, N., Pira, C., Pocar, A., Poehlmann, D. M., Pordes, S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramachers, Y., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Roberts, A., Roberts, C., Rode, J., Rogers, G., Romero, L., Rossi, M., Rubbia, A., Sadashivajois, S., Saffold, T. R., Samoylov, O., Sandford, E., Sanfilippo, S., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Scioli, G., Semenov, D. A., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Smirnova, T., Smith, B., Sokolov, A., Spangenberg, M., Stefanizzi, R., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Sung, A., Suvorov, Y., Szelc, A. M., Türkoğ, C., Tartaglia, R., Taylor, A., Taylor, J., Tedesco, S., Testera, G., Thieme, K., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tricomi, A., Unzhakov, E. V., John, T. Vallivilayil, Van Uffelen, M., Viant, T., Viel, S., Vishneva, A., Vogelaar, R. B., Vossebeld, J., Wada, M., Walczak, M. B., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., Wingerter-Seez, I., Wojaczyński, R., Wojcik, Ma. M., Wojcik, Ma., Wright, T., Xie, Y., Yang, C., Zabihi, A., Zakhary, P., Zani, A., Zichichi, A., Zuzel, G., and Zykova, M. P.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

Dark matter lighter than 10 GeV/c$^2$ encompasses a promising range of candidates. A conceptual design for a new detector, DarkSide-LowMass, is presented, based on the DarkSide-50 detector and progress toward DarkSide-20k, optimized for a low-threshold electron-counting measurement. Sensitivity to light dark matter is explored for various potential energy thresholds and background rates. These studies show that DarkSide-LowMass can achieve sensitivity to light dark matter down to the solar neutrino floor for GeV-scale masses and significant sensitivity down to 10 MeV/c$^2$ considering the Migdal effect or interactions with electrons. Requirements for optimizing the detector's sensitivity are explored, as are potential sensitivity gains from modeling and mitigating spurious electron backgrounds that may dominate the signal at the lowest energies.

Published
2022
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6. Puzzling time properties of proportional electroluminescence in two-phase argon detectors for dark matter searches

Author

Buzulutskov, A., Frolov, E., Borisova, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

Proportional electroluminescence (EL) in noble gases is a physical process routinely used in two-phase (liquid-gas) detectors for low-energy astroparticle-physics experiments. In this work, the time properties of visible-light EL in two-phase argon detectors have been systematically studied for the first time. In particular, two unusual slow components in the EL signal, with their contributions and time constants increasing with electric field, were observed. This puzzling property is not expected in any of the known mechanisms of photon and electron emission in two-phase media. Time constants of these components is about 4-5 $\mu$s and 50 $\mu$s. In addition, a specific threshold behavior of the slow components was revealed: they emerged at a threshold in reduced electric field of 4.8 $\pm$ 0.2 Td regardless of the gas phase density, which is about 1 Td above the onset of standard (excimer) EL. There is a conspicuous similarity between this threshold and reduced field threshold of EL in NIR occurring via higher atomic excited states Ar$^{*}(3p^{5}4p)$. An unexpected temperature dependence of slow components was also observed: their contribution decreased with temperature, practically disappearing at room temperature. We show that the puzzling properties of slow components can be explained in the framework of hypothesis that these are produced in the charge signal itself due to trapping of drifting electrons on metastable negative argon ions., Comment: 13 pages, 18 figures

Published
2022
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7. Study of visible-light emission in pure and methane-doped liquid argon

Author

Bondar, A., Borisova, E., Buzulutskov, A., Frolov, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

In liquid argon TPCs for dark matter search and neutrino detection experiments, primary scintillation light is used as a prompt signal of particle scattering, being intensively produced in the vacuum ultraviolet (VUV) due to excimer emission mechanism. On the other hand, there were indications on the production of visible-light emission in liquid argon, albeit at a much lower intensity, the origin of which is still not clear. The closely related issue is visible-light emission in liquid argon doped with methane, the interest in which is due to the possible use in neutron veto detectors for those experiments. In this work we study in detail the properties of such light emission in pure liquid argon and its mixtures with methane. In particular, the absolute photon yield of visible-light emission in pure liquid argon was measured to be about 200 and 90 photon/MeV for X-rays and alpha particles respectively. In liquid argon doped with methane the photon yield dropped down significantly, by about an order of magnitude at a methane molar content varying from 0.01 to 1%, and then almost did not change when further increasing the methane content up to 10%., Comment: 22 pages, 15 figures, 3 tables

Published
2022
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8. Neutral bremsstrahlung electroluminescence in noble liquids

Author

Borisova, E. and Buzulutskov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

Proportional electroluminescence (EL) is the physical effect used in two-phase dark matter detectors, to optically record in the gas phase the ionization signal produced by particle scattering in the liquid phase. In our previous works the presence of a new EL mechanism in noble gases, namely that of neutral bremsstrahlung (NBrS), was demonstrated both theoretically and experimentally, in addition to the ordinary EL mechanism due to excimer emission. In this work we show that the similar theoretical approach can apply to noble liquids, namely to liquid helium, neon, argon, krypton and xenon. In particular, the photon yields and spectra for NBrS EL in noble liquids have for the first time been calculated, using the electron energy and transport parameters obtained in the framework of Cohen-Lekner and Atrazhev theory. The relevance of the results obtained to the development of noble liquid detectors for dark matter searches and neutrino experiments is discussed., Comment: 7 pages, 6 figures

Published
2021
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9. Neutral bremsstrahlung and excimer electroluminescence in noble gases and its relevance to two-phase dark matter detectors

Author

Borisova, E. and Buzulutskov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

Proportional electroluminescence (EL) is the physical effect used in two-phase detectors for dark matter searches, to optically record (in the gas phase) the ionization signal produced by particle scattering in the liquid phase. In our previous work the presence of a new EL mechanism, namely that of neutral bremsstrahlung (NBrS), was demonstrated in two-phase argon detectors both theoretically and experimentally, in addition to the ordinary EL mechanism due to excimer emission. In this work the similar theoretical approach is applied to all noble gases, i.e. overall to helium, neon, argon, krypton and xenon, to calculate the EL yields and spectra both for NBrS and excimer EL. The relevance of the results obtained to the development of two-phase dark matter detectors is discussed., Comment: 14 pages, 14 figures, 1 table

Published
2021
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10. Separating $^{39}$Ar from $^{40}$Ar by cryogenic distillation with Aria for dark matter searches

Author

DarkSide Collaboration, Agnes, P., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Arba, M., Arpaia, P., Arcelli, S., Ave, M., Avetissov, I. Ch., Avetisov, R. I., Azzolini, O., Back, H. O., Balmforth, Z., Barbarian, V., Olmedo, A. Barrado, Barrillon, P., Basco, A., Batignani, G., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canesi, E. V., Canci, N., Cappello, G., Caravati, M., C, M., Cargioli, N., Carlini, M., Carnesecchi, F., Castello, P., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Celano, B., Chashin, S., Chepurnov, A., Cical, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Vilda, E. Conde, Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., D'Aniello, M., D'Auria, S., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Della Valle, M., Dellacasa, G., De Pasquale, S., Derbin, A. V., Devoto, A., Di Noto, L., Di Eusanio, F., Dionisi, C., Di Stefano, P., Dolganov, G., Dongiovanni, D., Dordei, F., Downing, M., Erjavec, T., Falciano, S., Farenzena, S., Diaz, M. Fernandez, Filip, C., Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Abia, P. Garcia, Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Casanueva, V. Goicoechea, Gola, A., Goretti, A. M., Diaz, R. Graciani, Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Guetti, M., Gulino, M., Guo, C., Hackett, B. R., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Ianni, An., Ippolito, V., James, C. C., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kim, S., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., La Delfa, L., La Grasta, D., Lai, M., Lami, N., Langrock, S., Leyton, M., Li, X., Lidey, L., Lippi, F., Lissia, M., Longo, G., Maccioni, N., Machulin, I. N., Mapelli, L., Marasciulli, A., Margotti, A., Mari, S. M., Maricic, J., Marinelli, M., Mart, M., Rojas, A. D. Martinez, Martini, A., Martoff, C. J., Mascia, M., Masetto, M., Masoni, A., Mazzi, A., McDonald, A. B., Mclaughlin, J., Messina, A., Meyers, P. D., Miletic, T., Milincic, R., Miola, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E. N., Mr, T., Muratova, V. N., Murenu, A., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Agasson, A. Navrer, Nessi, M., Nikulin, I., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Pellegrini, L. A., Pellegrino, C., Pelczar, K., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pinna, T., Pocar, A., Podda, P., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romero, L., Rossi, M., Rubbia, A., Rucaj, M., Sabiu, G. M., Salatino, P., Samoylov, O., S, E., Sandford, E., Sanfilippo, S., Sangiorgio, V. A., Santacroce, V., Santone, D., Santorelli, R., Santucci, A., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Semenov, D. A., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Smith, B., Sokolov, A., Stefanizzi, R., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A. M., Zsücs-Balázs, J. Z., Tartaglia, R., Testera, G., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tosti, S., Tricomi, A., Tuveri, M., Unzhakov, E. V., Usai, G., John, T. Vallivilayil, Vescovi, S., Viant, T., Viel, S., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., Wojcik, Ma. M., Wojcik, Ma., Xiao, X., Yang, C., Zani, A., Zenobio, F., Zichichi, A., Zuzel, G., and Zykova, M. P.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Aria project consists of a plant, hosting a 350 m cryogenic isotopic distillation column, the tallest ever built, which is currently in the installation phase in a mine shaft at Carbosulcis S.p.A., Nuraxi-Figus (SU), Italy. Aria is one of the pillars of the argon dark-matter search experimental program, lead by the Global Argon Dark Matter Collaboration. Aria was designed to reduce the isotopic abundance of $^{39}$Ar, a $\beta$-emitter of cosmogenic origin, whose activity poses background and pile-up concerns in the detectors, in the argon used for the dark-matter searches, the so-called Underground Argon (UAr). In this paper, we discuss the requirements, design, construction, tests, and projected performance of the plant for the isotopic cryogenic distillation of argon. We also present the successful results of isotopic cryogenic distillation of nitrogen with a prototype plant, operating the column at total reflux.

Published
2021
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11. Sensitivity of future liquid argon dark matter search experiments to core-collapse supernova neutrinos

Author

Agnes, P., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Arcelli, S., Ave, M., Avetissov, I. Ch., Avetisov, R. I., Azzolini, O., Back, H. O., Balmforth, Z., Barbarian, V., Olmedo, A. Barrado, Barrillon, P., Basco, A., Batignani, G., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Cappello, G., Caravati, M., Cárdenas-Montes, M., Carlini, M., Carnesecchi, F., Castello, P., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Celano, B., Chashin, S., Chepurnov, A., Chyhyrynets, E, Cicalò, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Vilda, E. Conde, Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., D'Auria, S., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Della Valle, M., Dellacasa, G., De Pasquale, S., Derbin, A. V., Devoto, A., Di Noto, L., Dionisi, C., Di Stefano, P., Dolganov, G., Dordei, F., Doria, L., Downing, M., Erjavec, T., Diaz, M. Fernandez, Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Abia, P. Garcia, Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Casanueva, V. Goicoechea, Gola, A., Diaz, R. Graciani, Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Gulino, M., Guo, C., Hackett, B. R., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Ianni, An., Ippolito, V., James, C. C., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kim, S., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., Lai, M., Langrock, S., Leyton, M., Li, X., Lidey, L., Lissia, M., Longo, G., Machulin, I. N., Mapelli, L., Marasciulli, A., Margotti, A., Mari, S. M., Maricic, J., Martínez, M., Rojas, A. D. Martinez, Martoff, C. J., Masoni, A., Mazzi, A., McDonald, A. B., Mclaughlin, J., Messina, A., Meyers, P. D., Miletic, T., Milincic, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E. N., Mróz, T., Muratova, V. N., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Agasson, A. Navrer, Nessi, M., Nikulin, I., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Pelczar, K., Pellegrini, L. A., Pellegrino, C., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pira, C., Pocar, A., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romero, L., Rossi, M., Rubbia, A., Salatino, P., Samoylov, O., García, E. Sánchez, Sandford, E., Sanfilippo, S., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Semenov, D. A., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Smith, B., Sokolov, A., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A. M., Tartaglia, R., Testera, G., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tricomi, A., Unzhakov, E. V., Usai, G., John, T. Vallivilayil, Viant, T., Viel, S., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., Wojcik, Ma. M., Wojcik, Ma., Xiao, X., Yang, C., Ye, Z., Zani, A., Zichichi, A., Zuzel, G., and Zykova, M. P.

Subjects
Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

Future liquid-argon DarkSide-20k and ARGO detectors, designed for direct dark matter search, will be sensitive also to core-collapse supernova neutrinos, via coherent elastic neutrino-nucleus scattering. This interaction channel is flavor-insensitive with a high-cross section, enabling for a high-statistics neutrino detection with target masses of $\sim$50~t and $\sim$360~t for DarkSide-20k and ARGO, respectively. Thanks to the low-energy threshold of $\sim$0.5~keV$_{nr}$ achievable by exploiting the ionization channel, DarkSide-20k and ARGO have the potential to discover supernova bursts throughout our galaxy and up to the Small Magellanic Cloud, respectively, assuming a 11-M$_{\odot}$ progenitor star. We report also on the sensitivity to the neutronization burst, whose electron neutrino flux is suppressed by oscillations when detected via charged current and elastic scattering. Finally, the accuracies in the reconstruction of the average and total neutrino energy in the different phases of the supernova burst, as well as its time profile, are also discussed, taking into account the expected background and the detector response., Comment: 21 pages, 8 figures

Published
2020
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12. Observation of primary scintillations in the visible range in liquid argon doped with methane

Author

Bondar, A., Borisova, E., Buzulutskov, A., Frolov, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

Neutron veto detector based on liquid scintillator containing hydrogen atoms is an integral part of any underground experiment for dark matter search. So far, a flammable mixture of liquid hydrocarbons was used as a liquid scintillator in such detectors. A safe alternative might be a liquid scintillator based on liquid argon doped with methane. In this work, we have studied the primary scintillations in pure liquid argon and its mixtures with methane, the CH4 content varying from 100 ppm to 5%. The primary scintillations have for the first time been observed in liquid argon doped with methane, in the visible and near infrared range, and their relative light yields have been measured as a function of the CH4 content., Comment: 10 pages, 6 figures. Presented at Instrumentation for Colliding Beam Physics Conference (INSTR20)

Published
2020
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13. Observation of unusual slow components in electroluminescence signal of two-phase argon detector

Author

Bondar, A., Borisova, E., Buzulutskov, A., Frolov, E., Oleynikov, V., and Sokolov, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter search to record ionization signals in the gas phase induced by particle scattering in the liquid phase (S2 signals). In this work, the EL pulse-shapes in a two-phase argon detector have for the first time been studied systematically in a wide range of reduced electric field, varying from 3 to 9 Td. The pulse-shapes were studied at different readout configurations and spectral ranges: using cryogenic PMTs and SiPMs, with and without a wavelength shifter (WLS), in the VUV and visible range. We observed the fast component and two unusual slow components, with time constants of about 5 $\mu$s and 40 $\mu$s. The unusual characteristic property of slow components was that their contribution and time constants increased with electric field., Comment: 18 pages, 14 figures, 1 equation. Proceedings paper of the INSTR20 conference

Published
2020
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14. SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range

Author

The DarkSide collaboration, Aalseth, C. E., Abdelhakim, S., 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., Castellani, A., Castello, P., Cavalcante, P., Cavazza, D., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Celano, B., Cereseto, R., Chashin, S., Cheng, W., Chepurnov, A., Cicalò, C., Cifarelli, L., Citterio, M., Coccetti, F., Cocco, V., Colocci, M., Vilda, E. Conde, Consiglio, L., Cossio, F., Covone, G., Crivelli, P., D'Antone, I., D'Incecco, M., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Cecco, S., De Deo, M., De Falco, A., De Gruttola, D., De Guido, G., De Rosa, G., Dellacasa, G., Demontis, P., De Pasquale, 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., Diaz, M. Fernandez, Filip, C., Fiorillo, G., Fomenko, K., Franceschi, A., Franco, D., Frolov, E., Froudakis, G. E., Funicello, N., Gabriele, F., Gabrieli, A., Galbiati, C., Garbini, M., Abia, P. Garcia, Fora, D. Gascón, Gendotti, A., Ghiano, C., Ghisi, A., Giampa, P., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Gorchakov, O., Grab, M., Diaz, R. Graciani, Grassi, M., Grate, J. W., Grobov, A., Gromov, M., Guan, M., Guerra, M. B. B., Guerzoni, M., Gulino, M., Haaland, R. K., Hackett, B. R., Hallin, A., Haranczyk, M., 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., Kochanek, I., Kondo, K., Kopp, G., Korablev, D., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., La Commara, M., La Delfa, L., Lai, M., Lebois, M., Lehnert, B., Levashko, N., Li, X., Liqiang, Q., Lissia, M., Lodi, G. U., Longo, G., Lussana, R., Luzzi, L., Machado, A. A., Machulin, I. N., Mandarano, A., Manecki, S., Mapelli, L., Margotti, A., Mari, S. M., Mariani, M., Maricic, J., Marinelli, M., Marras, D., Martínez, M., Rojas, A. D. Martinez, Mascia, M., Mason, J., Masoni, A., McDonald, A. B., Messina, A., 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., Nosov, V., Nowak, J. A., Oleinik, A., Oleynikov, V., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Pazzona, F., Peeters, S., Pegoraro, P. A., Pelczar, K., Pellegrini, L. A., Pellegrino, C., Pelliccia, N., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pocar, A., Pollmann, T. R., Portaluppi, D., Poudel, S. S., Pralavorio, P., Price, D., Radics, B., Raffaelli, F., Ragusa, F., Razeti, M., Regenfus, C., Renshaw, A. L., Rescia, S., Rescigno, M., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romani, A., Romero, L., Rossi, N., Rubbia, A., Sala, P., Salatino, P., Samoylov, O., García, E. Sánchez, Sandford, 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., Vázquez-Jáuregui, E., Viant, T., Viel, S., Villa, F., Vishneva, A., Vogelaar, R. B., Wahl, J., Walding, J. J., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, R., Wilson, J., Wojcik, Ma. M., Wojcik, Ma., Wu, S., Xiao, X., Yang, C., Ye, Z., Zuffa, M., and Zuzel, G.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
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., Comment: 26 pages, 22 figures, 3 tables

Published
2020
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16. Design and construction of a new detector to measure ultra-low radioactive-isotope contamination of argon

Author

The DarkSide Collaboration, 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., 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., 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., 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., Diaz, M. Fernandez, Ferri, A., Filip, C., Fiorillo, G., Fomenko, K., Franceschi, A., Franco, D., Froudakis, G. E., Gabriele, F., Gabrieli, A., Galbiati, C., 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., 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., 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., Pavletcov, V., 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., Pollman, T., 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., and Zuzel, G.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
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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18. Effect of Technological Characteristics of Various Types of Raw Materials on the Taste and Aroma of Sour Ales

Author

Ponomareva O., Borisova E., and Prokhorchik I.

Subjects
sour ales, malt, non-soluble materials, hops, yeast, lactic acid bacteria, Food processing and manufacture, TP368-456
Abstract

Sour ales, traditionally produced in Belgium, Britain, and Germany, have gained wide popularity in America, Europe, and Russia. The paper provides generalized and systematized scientific data related to the technological and biotechnological characteristics of raw materials used in sour ales. The study featured malt, grain products (wheat, corn, rice, barley, rye, and oats), hop, Lactobacillus lactic-acid bacteria, Saccharomyces cerevisiae brewer’s yeast, and Brettanomyces yeast. Sour ales are usually prepared from a combination of different malts, such as Pilsner, Vienna, and Munich. Pilsner is used for malt type, while Munich is mostly employed as a basisfor dark varieties of sour ales. The review presents some of the flavor characteristics of malt types, as well as their recommended content. Unmalted grain products have a significant impact on the technological process and the organoleptic characteristics of acid ales. Unmalted wheat is used for Belgian sour ales, such as Lambic, Fruit Lambic, and Gueuze, in the amount of 30–40%, while 50 % are used in the German variety of Berliner Weiss. In general, the degree of wort pitching for sour ales should not exceed 8-15 IBU, since hop acids kill lactic-acid bacteria. Common hop varieties with a low or medium content of α-acids were found optimal for sour ale production. For example, for Flanders Red Ale, producers most often use one of the best traditional European varieties, namely Saazer (Zatetsky).The following types of homo- and heterofermentative lactic-acid bacteria are recommended for ale production technology: Lactobacillus delbrueckii, Lactobacillus brevis, Lactobacillus buchneri, Lactobacillus fermentum, and Lactobacillus plantarum. The aromatic characteristics of the wort fermented with lactic acid bacteria are described in the following terms: bread, yeast, honey, oil, cider, etc. Lactic acid bacteria are used in sour ales production, as well as Brettanomyces yeasts. Currently, brewing widely employstwo types of yeast: Brettanomyces bruxellensis and Brettanomyces anomalus. They give the drink a specific taste and aroma, due to hydroxycinnamic acids (HCAs) and esters (ethyl acetate, ethyl lactate, phenylacetate, etc.). The paper contains some practical recommendations on the use of specific types of raw materials to produce sour ales with a given sensory profile.

Published
2019
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20. Lactic acid bacteria of the genus Lactobacillus in the formation of sour ales flavor profile

Author

Ponomareva O., Borisova E., and Prokhorchik I.

Subjects
sour ales, beer wort, lactic acid bacteria, fermentation by-products, flavor sensations, Food processing and manufacture, TP368-456
Abstract

Sour ales have become widely spread in Europe since XVII century. These drinks are still popular in Germany, Belgium, England and other European countries. Interest in sour ales has been growing steadily in Russia. The purpose of this work was to systematize and generalize scientific data and the results of practical use of lactic acid bacteria of the genus Lactobacillus in sour ales production technology and in the formation of the ready beverage flavor profile. The subjects of the research were biochemical and biotechnological properties of lactic acid bacteria of the genus Lactobacillus frequently used in sour ales production, namely, L. delbrueckii, L. brevis, L. buchneri, L. fermentum, L. plantarum. The results of studying sour ales composition by means of gas chromatography, solid phase microextraction, liquid chromatography, and mass spectroscopy show that they have complex compositions. Thus, sour ales of Lambic and Gueuze groups have 64 volatile compounds. Taste and aroma of sour ales are mostly formed by the most important components synthesized during lactic-acid fermentation. They are higher alcohols, complex esters, organic acids, dimethyl sulfide and diacetyl. Concentration of these components is mainly determined by the type of lactic acid bacteria. The article generalizes and systematizes scientific data concerning biochemical and biotechnological properties of different types of lactic acid bacteria of the genus Lactobacillus used for sour ale production. The article reveals concentrations of the main products and by-products synthesized by the given types of lactic acid bacteria during fermentation. The author points out corresponding taste and aroma sensations according to terminology used in European Brewing Convention (EBC).

Published
2018
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25. PDT and PD of Human Glioblastoma with 5-ALA/PpIX and n-GalLuPc

Author

Zaharieva, L, primary, Angelov, I, additional, Genova, Ts, additional, Kyurkchiev, D, additional, Tumangelova-Yuzeir, K, additional, Ivanova-Todorova, E, additional, Mantareva, V, additional, Karazapryanov, P, additional, Minkin, K, additional, Avramov, L, additional, and Borisova, E, additional

Published
2023
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27. Evidence for the production of Ar$_2^{*-}$ metastable negative molecular ions in two-phase argon detectors for dark matter searches

Author

Buzulutskov, A., Frolov, E., Borisova, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Subjects
High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), High Energy Physics - Experiment
Abstract

The recent studies of electroluminescence (EL) properties in two-phase argon detectors for dark matter searches have revealed the presence of unusual delayed pulses in the EL signal in the form of two slow components with time constants of about 5 and 50 $\mu$s. These components were shown to be present in the charge signal itself, which clearly indicates that drifting electrons are temporarily trapped on two states of metastable negative argon ions which have never been observed before. In this work, using the pressure dependence of the ratio of slow component contributions measured in experiment, it is shown that these states are those of two types of metastable negative molecular ions, $\mathrm{Ar}_2^{*-}(b \ ^4\Sigma_u^-)$ and $\mathrm{Ar}_2^{*-}(a \ ^4\Sigma_g^+)$ for the higher and lower energy level respectively., Comment: 4 pages, 2 figures

Published
2023

28. First observation of neutral bremsstrahlung electroluminescence in liquid argon

Author

Buzulutskov, A., Frolov, E., Borisova, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Subjects
High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), High Energy Physics - Experiment
Abstract

Recent discovery of additional mechanism of electroluminescence (EL) in noble gases due to neutral bremsstrahlung (NBrS) effect led to a prediction that NBrS EL should be present in noble liquids as well. A rigorous theory of NBrS EL in noble liquids was developed accordingly in the framework of Cohen-Lekner and Atrazhev approach. In this work, we confirm this prediction: for the first time, visible-range EL has been observed in liquid Ar at electric fields reaching 90~kV/cm, using Gas Electron Multiplier (GEM) and Thick GEM (THGEM) structures. Absolute light yields of the EL were measured and found to be in excellent agreement with the theory, provided that momentum-transfer cross section of electron-atom scattering (instead of energy-transfer one) is used for calculation of NBrS cross section., 6 pages, 4 figures

Published
2023

31. Possible evidence for the production of Ar2∗- metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches.

Author

Buzulutskov, A., Frolov, E., Borisova, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Abstract

Our recent studies of electroluminescence (EL) properties in two-phase argon detectors for dark matter searches have revealed the presence of unusual delayed pulses in the EL signal in the form of two slow components with time constants of about 5 and 50 μ s . These components were shown to be present in the charge signal itself, which clearly indicates that drifting electrons are temporarily trapped on two states of metastable negative argon ions which have never been observed before. In this work, using the pressure dependence of the ratio of slow component contributions measured in experiment, it is deduced that these states are those of two types of metastable negative molecular ions, Ar 2 ∗ - (b 4 Σ u -) and Ar 2 ∗ - (a 4 Σ g +) for the higher and lower energy level respectively. [ABSTRACT FROM AUTHOR]

Published
2023
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32. COVID-19 vaccine acceptance and hesitancy in low- and middle-income countries

Author

Solis Arce, J, Warren, S, Meriggi, N, Scacco, A, Mcmurry, N, Voors, M, Syunyaev, G, Malik, A, Aboutajdine, S, Adeojo, O, Anigo, D, Armand, A, Asad, S, Atyera, M, Augsburg, B, Awasthi, M, Ayesiga, G, Bancalari, A, Bjorkman Nyqvist, M, Borisova, E, Bosancianu, C, Cabra Garcia, M, Cheema, A, Collins, E, Cuccaro, F, Farooqi, A, Fatima, T, Fracchia, M, Galindo Soria, M, Guariso, A, Hasanain, A, Jaramillo, S, Kallon, S, Kamwesigye, A, Kharel, A, Kreps, S, Levine, M, Littman, R, Malik, M, Manirabaruta, G, Mfura, J, Momoh, F, Mucauque, A, Mussa, I, Nsabimana, J, Obara, I, Otalora, M, Ouedraogo, B, Pare, T, Platas, M, Polanco, L, Qureshi, J, Raheem, M, Ramakrishna, V, Rendra, I, Shah, T, Shaked, S, Shapiro, J, Svensson, J, Tariq, A, Tchibozo, A, Tiwana, H, Trivedi, B, Vernot, C, Vicente, P, Weissinger, L, Zafar, B, Zhang, B, Karlan, D, Callen, M, Teachout, M, Humphreys, M, Mobarak, A, Omer, S, Solis Arce J. S., Warren S. S., Meriggi N. F., Scacco A., McMurry N., Voors M., Syunyaev G., Malik A. A., Aboutajdine S., Adeojo O., Anigo D., Armand A., Asad S., Atyera M., Augsburg B., Awasthi M., Ayesiga G. E., Bancalari A., Bjorkman Nyqvist M., Borisova E., Bosancianu C. M., Cabra Garcia M. R., Cheema A., Collins E., Cuccaro F., Farooqi A. Z., Fatima T., Fracchia M., Galindo Soria M. L., Guariso A., Hasanain A., Jaramillo S., Kallon S., Kamwesigye A., Kharel A., Kreps S., Levine M., Littman R., Malik M., Manirabaruta G., Mfura J. L. H., Momoh F., Mucauque A., Mussa I., Nsabimana J. A., Obara I., Otalora M. J., Ouedraogo B. W., Pare T. B., Platas M. R., Polanco L., Qureshi J. A., Raheem M., Ramakrishna V., Rendra I., Shah T., Shaked S. E., Shapiro J. N., Svensson J., Tariq A., Tchibozo A. M., Tiwana H. A., Trivedi B., Vernot C., Vicente P. C., Weissinger L. B., Zafar B., Zhang B., Karlan D., Callen M., Teachout M., Humphreys M., Mobarak A. M., Omer S. B., Solis Arce, J, Warren, S, Meriggi, N, Scacco, A, Mcmurry, N, Voors, M, Syunyaev, G, Malik, A, Aboutajdine, S, Adeojo, O, Anigo, D, Armand, A, Asad, S, Atyera, M, Augsburg, B, Awasthi, M, Ayesiga, G, Bancalari, A, Bjorkman Nyqvist, M, Borisova, E, Bosancianu, C, Cabra Garcia, M, Cheema, A, Collins, E, Cuccaro, F, Farooqi, A, Fatima, T, Fracchia, M, Galindo Soria, M, Guariso, A, Hasanain, A, Jaramillo, S, Kallon, S, Kamwesigye, A, Kharel, A, Kreps, S, Levine, M, Littman, R, Malik, M, Manirabaruta, G, Mfura, J, Momoh, F, Mucauque, A, Mussa, I, Nsabimana, J, Obara, I, Otalora, M, Ouedraogo, B, Pare, T, Platas, M, Polanco, L, Qureshi, J, Raheem, M, Ramakrishna, V, Rendra, I, Shah, T, Shaked, S, Shapiro, J, Svensson, J, Tariq, A, Tchibozo, A, Tiwana, H, Trivedi, B, Vernot, C, Vicente, P, Weissinger, L, Zafar, B, Zhang, B, Karlan, D, Callen, M, Teachout, M, Humphreys, M, Mobarak, A, Omer, S, Solis Arce J. S., Warren S. S., Meriggi N. F., Scacco A., McMurry N., Voors M., Syunyaev G., Malik A. A., Aboutajdine S., Adeojo O., Anigo D., Armand A., Asad S., Atyera M., Augsburg B., Awasthi M., Ayesiga G. E., Bancalari A., Bjorkman Nyqvist M., Borisova E., Bosancianu C. M., Cabra Garcia M. R., Cheema A., Collins E., Cuccaro F., Farooqi A. Z., Fatima T., Fracchia M., Galindo Soria M. L., Guariso A., Hasanain A., Jaramillo S., Kallon S., Kamwesigye A., Kharel A., Kreps S., Levine M., Littman R., Malik M., Manirabaruta G., Mfura J. L. H., Momoh F., Mucauque A., Mussa I., Nsabimana J. A., Obara I., Otalora M. J., Ouedraogo B. W., Pare T. B., Platas M. R., Polanco L., Qureshi J. A., Raheem M., Ramakrishna V., Rendra I., Shah T., Shaked S. E., Shapiro J. N., Svensson J., Tariq A., Tchibozo A. M., Tiwana H. A., Trivedi B., Vernot C., Vicente P. C., Weissinger L. B., Zafar B., Zhang B., Karlan D., Callen M., Teachout M., Humphreys M., Mobarak A. M., and Omer S. B.

Abstract

Widespread acceptance of COVID-19 vaccines is crucial for achieving sufficient immunization coverage to end the global pandemic, yet few studies have investigated COVID-19 vaccination attitudes in lower-income countries, where large-scale vaccination is just beginning. We analyze COVID-19 vaccine acceptance across 15 survey samples covering 10 low- and middle-income countries (LMICs) in Asia, Africa and South America, Russia (an upper-middle-income country) and the United States, including a total of 44,260 individuals. We find considerably higher willingness to take a COVID-19 vaccine in our LMIC samples (mean 80.3%; median 78%; range 30.1 percentage points) compared with the United States (mean 64.6%) and Russia (mean 30.4%). Vaccine acceptance in LMICs is primarily explained by an interest in personal protection against COVID-19, while concern about side effects is the most common reason for hesitancy. Health workers are the most trusted sources of guidance about COVID-19 vaccines. Evidence from this sample of LMICs suggests that prioritizing vaccine distribution to the Global South should yield high returns in advancing global immunization coverage. Vaccination campaigns should focus on translating the high levels of stated acceptance into actual uptake. Messages highlighting vaccine efficacy and safety, delivered by healthcare workers, could be effective for addressing any remaining hesitancy in the analyzed LMICs.

Published
2021

34. Separating $^{39}$Ar from $^{40}$Ar by cryogenic distillation with Aria for dark matter searches

Author

Agnes, P., Albergo, S., Albuquerque, I.F.M., Alexander, T., Alici, A., Alton, A.K., Amaudruz, P., Arba, M., Arpaia, P., Arcelli, S., Ave, M., Avetissov, I.Ch., Avetisov, R.I., Azzolini, O., Back, H.O., Balmforth, Z., Barbarian, V., Olmedo, A. Barrado, Barrillon, P., Basco, A., Batignani, G., Bondar, A., Bonivento, W.M., Borisova, E., Bottino, B., Boulay, M.G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canesi, E.V., Canci, N., Cappello, G., Caravati, M., Cárdenas-Montes, M., Cargioli, N., Carlini, M., Carnesecchi, F., Castello, P., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Cela Ruiz, J.M., Celano, B., Chashin, S., Chepurnov, A., Cicalò, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Vilda, E. Conde, Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., d'Aniello, M., d'Auria, S., da Rocha Rolo, M., Dadoun, O., Daniel, M., Davini, S., de Candia, A., De Cecco, S., De Falco, A., de Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Della Valle, M., Dellacasa, G., De Pasquale, S., Derbin, A.V., Devoto, A., Di Noto, L., Di Eusanio, F., Dionisi, C., Di Stefano, P., Dolganov, G., Dongiovanni, D., Dordei, F., Downing, M., Erjavec, T., Falciano, S., Farenzena, S., Diaz, M. Fernandez, Filip, C., Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Abia, P. Garcia, Gendotti, A., Ghiano, C., Giampaolo, R.A., Giganti, C., Giorgi, M.A., Giovanetti, G.K., Gligan, M.L., Casanueva, V. Goicoechea, Gola, A., Goretti, A.M., Graciani Diaz, R., Grigoriev, G.Y., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Guetti, M., Gulino, M., Guo, C., Hackett, B.R., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E.V., Ianni, An., Ippolito, V., James, C.C., Jillings, C., Kachru, P., Kemp, A.A., Kendziora, C.L., Keppel, G., Khomyakov, A.V., Kim, S., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., La Delfa, L., La Grasta, D., Lai, M., Lami, N., Langrock, S., Leyton, M., Li, X., Lidey, L., Lippi, F., Lissia, M., Longo, G., Maccioni, N., Machulin, I.N., Mapelli, L., Marasciulli, A., Margotti, A., Mari, S.M., Maricic, J., Marinelli, M., Martínez, M., Rojas, A.D. Martinez, Martini, A., Martoff, C.J., Mascia, M., Masetto, M., Masoni, A., Mazzi, A., Mcdonald, A.B., Mclaughlin, J., Messina, A., Meyers, P.D., Miletic, T., Milincic, R., Miola, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E.N., Mr, T., Mróz, T., Muratova, V.N., Murenu, A., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Navrer Agasson, A., Nessi, M., Nikulin, I., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P.A., Pellegrini, L.A., Pellegrino, C., Pelczar, K., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pinna, T., Pocar, A., Podda, P., Poehlmann, D.M., Pordes, S., Poudel, S.S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A.L., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L.P., Ripoli, C., Rivetti, A., Rode, J., Romero, L., Rossi, M., Rubbia, A., Rucaj, M., Sabiu, G.M., Salatino, P., Samoylov, O., Sánchez García, E., Sandford, E., Sanfilippo, S., Sangiorgio, V.A., Santacroce, V., Santone, D., Santorelli, R., Santucci, A., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Semenov, D.A., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M.D., Smirnov, O., Smith, B., Sokolov, A., Stefanizzi, R., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A.M., Zsücs-Balázs, J.Z., Tartaglia, R., Testera, G., Thorpe, T.N., Tonazzo, A., Torres-Lara, S., Tosti, S., Tricomi, A., Tuveri, M., Unzhakov, E.V., Usai, G., John, T. Vallivilayil, Vescovi, S., Viant, T., Viel, S., Vishneva, A., Vogelaar, R.B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wheadon, R.J., Williams, L., Wojcik, Ma.M., Wojcik, Ma., Xiao, X., Yang, C., Zani, A., Zenobio, F., Zichichi, A., Zuzel, G., Zykova, M.P., Agnes P., Albergo S., Albuquerque I.F.M., Alexander T., Alici A., Alton A.K., Amaudruz P., Arba M., Arpaia P., Arcelli S., Ave M., Avetissov I.C., Avetisov R.I., Azzolini O., Back H.O., Balmforth Z., Barbarian V., Barrado Olmedo A., Barrillon P., Basco A., Batignani G., Bondar A., Bonivento W.M., Borisova E., Bottino B., Boulay M.G., Buccino G., Bussino S., Busto J., Buzulutskov A., Cadeddu M., Cadoni M., Caminata A., Canesi E.V., Canci N., Cappello G., Caravati M., Cardenas-Montes M., Cargioli N., Carlini M., Carnesecchi F., Castello P., Castellani A., Catalanotti S., Cataudella V., Cavalcante P., Cavuoti S., Cebrian S., Cela Ruiz J.M., Celano B., Chashin S., Chepurnov A., Cicalo C., Cifarelli L., Cintas D., Coccetti F., Cocco V., Colocci M., Conde Vilda E., Consiglio L., Copello S., Corning J., Covone G., Czudak P., D'Aniello M., D'Auria S., Da Rocha Rolo M.D., Dadoun O., Daniel M., Davini S., De Candia A., De Cecco S., De Falco A., De Filippis G., De Gruttola D., De Guido G., De Rosa G., Della Valle M., Dellacasa G., De Pasquale S., Derbin A.V., Devoto A., Di Noto L., Di Eusanio F., Dionisi C., Di Stefano P., Dolganov G., Dongiovanni D., Dordei F., Downing M., Erjavec T., Falciano S., Farenzena S., Fernandez Diaz M., Filip C., Fiorillo G., Franceschi A., Franco D., Frolov E., Funicello N., Gabriele F., Galbiati C., Garbini M., Garcia Abia P., Gendotti A., Ghiano C., Giampaolo R.A., Giganti C., Giorgi M.A., Giovanetti G.K., Gligan M.L., Goicoechea Casanueva V., Gola A., Goretti A.M., Graciani Diaz R., Grigoriev G.Y., Grobov A., Gromov M., Guan M., Guerzoni M., Guetti M., Gulino M., Guo C., Hackett B.R., Hallin A., Haranczyk M., Hill S., Horikawa S., Hubaut F., Hugues T., Hungerford E.V., Ianni A., Ippolito V., James C.C., Jillings C., Kachru P., Kemp A.A., Kendziora C.L., Keppel G., Khomyakov A.V., Kish A., Kochanek I., Kondo K., Korga G., Kubankin A., Kugathasan R., Kuss M., Kuzniak M., La Commara M., La Delfa L., La Grasta D., Lai M., Lami N., Langrock S., Leyton M., Li X., Lidey L., Lippi F., Lissia M., Longo G., Maccioni N., Machulin I.N., Mapelli L., Marasciulli A., Margotti A., Mari S.M., Maricic J., Marinelli M., Martinez M., Martinez Rojas A.D., Martini A., Mascia M., Masetto M., Masoni A., Mazzi A., McDonald A.B., Mclaughlin J., Messina A., Meyers P.D., Miletic T., Milincic R., Miola R., Moggi A., Moharana A., Moioli S., Monroe J., Morisi S., Morrocchi M., Mozhevitina E.N., Mroz T., Muratova V.N., Murenu A., Muscas C., Musenich L., Musico P., Nania R., Napolitano T., Navrer Agasson A., Nessi M., Nikulin I., Nowak J., Oleinik A., Oleynikov V., Pagani L., Pallavicini M., Palmas S., Pandola L., Pantic E., Paoloni E., Paternoster G., Pegoraro P.A., Pellegrini L.A., Pellegrino C., Pelczar K., Perotti F., Pesudo V., Picciau E., Pietropaolo F., Pinna T., Pocar A., Podda P., Poehlmann D.M., Pordes S., Poudel S.S., Pralavorio P., Price D., Raffaelli F., Ragusa F., Ramirez A., Razeti M., Razeto A., Renshaw A.L., Rescia S., Rescigno M., Resnati F., Retiere F., Rignanese L.P., Ripoli C., Rivetti A., Rode J., Romero L., Rossi M., Rubbia A., Rucaj M., Sabiu G.M., Salatino P., Samoylov O., Sanchez Garcia E., Sandford E., Sanfilippo S., Sangiorgio V.A., Santacroce V., Santone D., Santorelli R., Santucci A., Savarese C., Scapparone E., Schlitzer B., Scioli G., Semenov D.A., Shaw B., Shchagin A., Sheshukov A., Simeone M., Skensved P., Skorokhvatov M.D., Smirnov O., Smith B., Sokolov A., Stefanizzi R., Steri A., Stracka S., Strickland V., Stringer M., Sulis S., Suvorov Y., Szelc A.M., Szucs-Balazs J.Z., Tartaglia R., Testera G., Thorpe T.N., Tonazzo A., Torres-Lara S., Tosti S., Tricomi A., Tuveri M., Unzhakov E.V., Usai G., Vallivilayil John T., Vescovi S., Viant T., Viel S., Vishneva A., Vogelaar R.B., Wada M., Wang H., Wang Y., Westerdale S., Wheadon R.J., Williams L., M.Wojcik M., Wojcik M., Xiao X., Yang C., Zani A., Zenobio F., Zichichi A., Zuzel G., Zykova M.P., 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), 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), 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), DarkSide-20k, Agnes, P., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Arba, M., Arpaia, P., Arcelli, S., Ave, M., Avetissov, I. C., Avetisov, R. I., Azzolini, O., Back, H. O., Balmforth, Z., Barbarian, V., Barrado Olmedo, A., Barrillon, P., Basco, A., Batignani, G., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canesi, E. V., Canci, N., Cappello, G., Caravati, M., Cardenas-Montes, M., Cargioli, N., Carlini, M., Carnesecchi, F., Castello, P., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Cela Ruiz, J. M., Celano, B., Chashin, S., Chepurnov, A., Cicalo, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Conde Vilda, E., Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., D'Aniello, M., D'Auria, S., Da Rocha Rolo, M. D., Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Della Valle, M., Dellacasa, G., De Pasquale, S., Derbin, A. V., Devoto, A., Di Noto, L., Di Eusanio, F., Dionisi, C., Di Stefano, P., Dolganov, G., Dongiovanni, D., Dordei, F., Downing, M., Erjavec, T., Falciano, S., Farenzena, S., Fernandez Diaz, M., Filip, C., Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Garcia Abia, P., Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Goicoechea Casanueva, V., Gola, A., Goretti, A. M., Graciani Diaz, R., Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Guetti, M., Gulino, M., Guo, C., Hackett, B. R., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Ianni, A., Ippolito, V., James, C. C., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuzniak, M., La Commara, M., La Delfa, L., La Grasta, D., Lai, M., Lami, N., Langrock, S., Leyton, M., Li, X., Lidey, L., Lippi, F., Lissia, M., Longo, G., Maccioni, N., Machulin, I. N., Mapelli, L., Marasciulli, A., Margotti, A., Mari, S. M., Maricic, J., Marinelli, M., Martinez, M., Martinez Rojas, A. D., Martini, A., Mascia, M., Masetto, M., Masoni, A., Mazzi, A., Mcdonald, A. B., Mclaughlin, J., Messina, A., Meyers, P. D., Miletic, T., Milincic, R., Miola, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E. N., Mroz, T., Muratova, V. N., Murenu, A., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Navrer Agasson, A., Nessi, M., Nikulin, I., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Pellegrini, L. A., Pellegrino, C., Pelczar, K., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pinna, T., Pocar, A., Podda, P., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romero, L., Rossi, M., Rubbia, A., Rucaj, M., Sabiu, G. M., Salatino, P., Samoylov, O., Sanchez Garcia, E., Sandford, E., Sanfilippo, S., Sangiorgio, V. A., Santacroce, V., Santone, D., Santorelli, R., Santucci, A., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Semenov, D. A., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Smith, B., Sokolov, A., Stefanizzi, R., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A. M., Szucs-Balazs, J. Z., Tartaglia, R., Testera, G., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tosti, S., Tricomi, A., Tuveri, M., Unzhakov, E. V., Usai, G., Vallivilayil John, T., Vescovi, S., Viant, T., Viel, S., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., M. Wojcik, M., Wojcik, M., Xiao, X., Yang, C., Zani, A., Zenobio, F., Zichichi, A., Zuzel, G., Zykova, M. P., Avetissov, I. Ch., Cárdenas-Montes, M., Cicalò, C., D’Aniello, M., D’Auria, S., Ianni, An., Kuźniak, M., Martínez, M., Mróz, T., Sánchez García, E., Wojcik, Ma. M., Wojcik, Ma., 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 Paris Cité (UPCité), and ANR-18-IDEX-0001,Université de Paris,Université de Paris(2018)

Subjects
Astrophysics and Astronomy, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, isotopic distillation argon cryogenic, Instrumentation and Detectors (physics.ins-det), dark matter: detector, fabrication, argon: nuclide, astro-ph.IM, dark-matter, DarkSide-20k, Argon, cryogenics, pile-up, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), physics.ins-det, performance
Abstract

Aria is a plant hosting a ${350}\,\hbox {m}$ cryogenic isotopic distillation column, the tallest ever built, which is being installed in a mine shaft at Carbosulcis S.p.A., Nuraxi-Figus (SU), Italy. Aria is one of the pillars of the argon dark-matter search experimental program, lead by the Global Argon Dark Matter Collaboration. It was designed to reduce the isotopic abundance of ${^{39}\hbox {Ar}}$ in argon extracted from underground sources, called Underground Argon (UAr), which is used for dark-matter searches. Indeed, ${^{39}\hbox {Ar}}$ is a $\beta $-emitter of cosmogenic origin, whose activity poses background and pile-up concerns in the detectors. In this paper, we discuss the requirements, design, construction, tests, and projected performance of the plant for the isotopic cryogenic distillation of argon. We also present the successful results of the isotopic cryogenic distillation of nitrogen with a prototype plant. The Aria project consists of a plant, hosting a 350 m cryogenic isotopic distillation column, the tallest ever built, which is currently in the installation phase in a mine shaft at Carbosulcis S.p.A., Nuraxi-Figus (SU), Italy. Aria is one of the pillars of the argon dark-matter search experimental program, lead by the Global Argon Dark Matter Collaboration. Aria was designed to reduce the isotopic abundance of $^{39}$Ar, a $\beta$-emitter of cosmogenic origin, whose activity poses background and pile-up concerns in the detectors, in the argon used for the dark-matter searches, the so-called Underground Argon (UAr). In this paper, we discuss the requirements, design, construction, tests, and projected performance of the plant for the isotopic cryogenic distillation of argon. We also present the successful results of isotopic cryogenic distillation of nitrogen with a prototype plant, operating the column at total reflux.

Published
2021
Full Text
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35. Sensitivity of future liquid argon dark matter search experiments to core-collapse supernova neutrinos

Author

DarkSide-20k Collaboration, Agnes, P., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Arcelli, S., Ave, M., Avetissov, I. Ch., Giorgi, M. A., Giovanetti, G. K., Goicoechea Casanueva, V., Gola, A., Graciani Diaz, R., Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Avetisov, R. I., Gulino, M., Guo, C., Hackett, B. R., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Azzolini, O., Ianni, An., Ippolito, V., James, C. C., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kim, S., Back, H. O., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., Lai, M., Balmforth, Z., Langrock, S., Leyton, M., Li, X., Lidey, L., Lissia, M., Longo, G., Machulin, I. N., Mapelli, L., Marasciulli, A., Margotti, A., Barbarian, V., Mari, S. M., Maricic, J., Martínez, M., Martinez Rojas, A. D., Martoff, C. J., Masoni, A., Mazzi, A., McDonald, A. B., Mclaughlin, J., Messina, A., Barrado Olmedo, A., Meyers, P. D., Miletic, T., Milincic, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E. N., Barrillon, P., Mróz, T., Muratova, V. N., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Navrer Agasson, A., Nessi, M., Nikulin, I., Basco, A., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Batignani, G., Pelczar, K., Pellegrini, L. A., Pellegrino, C., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pira, C., Pocar, A., Poehlmann, D. M., Bondar, A., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Bonivento, W. M., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romero, L., ROSSI, Monia, Borisova, E., Rubbia, A., Salatino, P., Samoylov, O., Sánchez García, E., Sandford, E., Sanfilippo, S., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Bottino, B., Schlitzer, B., Scioli, G., Semenov, D. A., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Boulay, M. G., Smith, B., Sokolov, A., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A. M., Tartaglia, R., Buccino, G., Testera, G., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tricomi, A., Unzhakov, E. V., Usai, G., Vallivilayil John, T., Viant, T., Viel, S., Bussino, S., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., Wojcik, Ma. M., Wojcik, Ma., Busto, J., Xiao, X., Yang, C., Ye, Z., Zani, A., Zichichi, A., Zuzel, G., Zykova, M. P., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Cappello, G., Caravati, M., Cárdenas-Montes, M., Carlini, M., Carnesecchi, F., Castello, P., Catalanotti, S., Cataudella, V., Cavalcante, P., CAVUOTI, STEFANO, Cebrian, S., Cela Ruiz, J. M., Celano, B., Chashin, S., Chepurnov, A., Chyhyrynets, E., Cicalò, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Conde Vilda, E., Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., D'Auria, S., Da Rocha Rolo, M. D., Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., DE ROSA, GIORGIA, DELLA VALLE, Massimo, Dellacasa, G., De Pasquale, S., Derbin, A. V., Devoto, A., Di Noto, L., Dionisi, C., Di Stefano, P., Dolganov, G., Dordei, F., Doria, L., Downing, M., Erjavec, T., Fernandez Diaz, M., Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Garcia Abia, P., Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Agnes, P., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Arcelli, S., Ave, M., Avetissov, I. Ch., Avetisov, R. I., Azzolini, O., Back, H. O., Balmforth, Z., Barbarian, V., Barrado Olmedo, A., Barrillon, P., Basco, A., Batignani, G., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Cappello, G., Caravati, M., Cárdenas-Montes, M., Carlini, M., Carnesecchi, F., Castello, P., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Cela Ruiz, J. M., Celano, B., Chashin, S., Chepurnov, A., Chyhyrynets, E, Cicalò, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Conde Vilda, E., Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., D'Auria, S., Da Rocha Rolo, M. D., Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Della Valle, M., Dellacasa, G., De Pasquale, S., Derbin, A. V., Devoto, A., Di Noto, L., Dionisi, C., Di Stefano, P., Dolganov, G., Dordei, F., Doria, L., Downing, M., Erjavec, T., Fernandez Diaz, M., Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Garcia Abia, P., Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Goicoechea Casanueva, V., Gola, A., Graciani Diaz, R., Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Gulino, M., Guo, C., Hackett, B. R., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Ianni, An., Ippolito, V., James, C. C., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kim, S., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., Lai, M., Langrock, S., Leyton, M., Li, X., Lidey, L., Lissia, M., Longo, G., Machulin, I. N., Mapelli, L., Marasciulli, A., Margotti, A., Mari, S. M., Maricic, J., Martínez, M., Martinez Rojas, A. D., Martoff, C. J., Masoni, A., Mazzi, A., Mcdonald, A. B., Mclaughlin, J., Messina, A., Meyers, P. D., Miletic, T., Milincic, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E. N., Mróz, T., Muratova, V. N., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Navrer Agasson, A., Nessi, M., Nikulin, I., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Pelczar, K., Pellegrini, L. A., Pellegrino, C., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pira, C., Pocar, A., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romero, L., Rossi, M., Rubbia, A., Salatino, P., Samoylov, O., Sánchez García, E., Sandford, E., Sanfilippo, S., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Semenov, D. A., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Smith, B., Sokolov, A., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A. M., Tartaglia, R., Testera, G., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tricomi, A., Unzhakov, E. V., Usai, G., Vallivilayil John, T., Viant, T., Viel, S., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., Wojcik, Ma. M., Wojcik, Ma., Xiao, X., Yang, C., Ye, Z., Zani, A., Zichichi, A., Zuzel, G., Zykova, M. P., 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), 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), 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), DarkSide 20k, 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 Paris Cité (UPCité), Agnes P., Albergo S., Albuquerque I.F.M., Alexander T., Alici A., Alton A.K., Amaudruz P., Arcelli S., Ave M., Avetissov I.C., Avetisov R.I., Azzolini O., Back H.O., Balmforth Z., Barbarian V., Barrado Olmedo A., Barrillon P., Basco A., Batignani G., Bondar A., Bonivento W.M., Borisova E., Bottino B., Boulay M.G., Buccino G., Bussino S., Busto J., Buzulutskov A., Cadeddu M., Cadoni M., Caminata A., Canci N., Cappello G., Caravati M., Cardenas-Montes M., Carlini M., Carnesecchi F., Castello P., Catalanotti S., Cataudella V., Cavalcante P., Cavuoti S., Cebrian S., Cela Ruiz J.M., Celano B., Chashin S., Chepurnov A., Chyhyrynets E., Cicalo C., Cifarelli L., Cintas D., Coccetti F., Cocco V., Colocci M., E. Conde Vilda, Consiglio L., Copello S., Corning J., Covone G., Czudak P., D'Auria S., Da Rocha Rolo M.D., Dadoun O., Daniel M., Davini S., De Candia A., De Cecco S., De Falco A., De Filippis G., De Gruttola D., De Guido G., De Rosa G., Della Valle M., Dellacasa G., De Pasquale S., Derbin A.V., Devoto A., Di Noto L., Dionisi C., Di Stefano P., Dolganov G., Dordei F., Doria L., Downing M., Erjavec T., Fernandez Diaz M., Fiorillo G., Franceschi A., Franco D., Frolov E., Funicello N., Gabriele F., Galbiati C., Garbini M., Garcia Abia P., Gendotti A., Ghiano C., Giampaolo R.A., Giganti C., Giorgi M.A., Giovanetti G.K., Goicoechea Casanueva V., Gola A., Graciani Diaz R., Grigoriev G.Y., Grobov A., Gromov M., Guan M., Guerzoni M., Gulino M., Guo C., Hackett B.R., Hallin A., Haranczyk M., Hill S., Horikawa S., Hubaut F., Hugues T., Hungerford E.V., Ianni A., Ippolito V., James C.C., Jillings C., Kachru P., Kemp A.A., Kendziora C.L., Keppel G., Khomyakov A.V., Kim S., Kish A., Kochanek I., Kondo K., Korga G., Kubankin A., Kugathasan R., Kuss M., Kuzniak M., La Commara M., Lai M., Langrock S., Leyton M., Li X., Lidey L., Lissia M., Longo G., Machulin I.N., Mapelli L., Marasciulli A., Margotti A., Mari S.M., Maricic J., Martinez M., Martinez Rojas A.D., Martoff C.J., Masoni A., Mazzi A., McDonald A.B., Mclaughlin J., Messina A., Meyers P.D., Miletic T., Milincic R., Moggi A., Moharana A., Moioli S., Monroe J., Morisi S., Morrocchi M., Mozhevitina E.N., Mroz T., Muratova V.N., Muscas C., Musenich L., Musico P., Nania R., Napolitano T., Navrer Agasson A., Nessi M., Nikulin I., Nowak J., Oleinik A., Oleynikov V., Pagani L., Pallavicini M., Pandola L., Pantic E., Paoloni E., Paternoster G., Pegoraro P.A., Pelczar K., Pellegrini L.A., Pellegrino C., Perotti F., Pesudo V., Picciau E., Pietropaolo F., Pira C., Pocar A., Poehlmann D.M., Pordes S., Poudel S.S., Pralavorio P., Price D., Raffaelli F., Ragusa F., Ramirez A., Razeti M., Razeto A., Renshaw A.L., Rescia S., Rescigno M., Resnati F., Retiere F., Rignanese L.P., Ripoli C., Rivetti A., Rode J., Romero L., Rossi M., Rubbia A., Salatino P., Samoylov O., Sanchez Garcia E., Sandford E., Sanfilippo S., Santone D., Santorelli R., Savarese C., Scapparone E., Schlitzer B., Scioli G., Semenov D.A., Shaw B., Shchagin A., Sheshukov A., Simeone M., Skensved P., Skorokhvatov M.D., Smirnov O., Smith B., Sokolov A., Steri A., Stracka S., Strickland V., Stringer M., Sulis S., Suvorov Y., Szelc A.M., Tartaglia R., Testera G., Thorpe T.N., Tonazzo A., Torres-Lara S., Tricomi A., Unzhakov E.V., Usai G., Vallivilayil John T., Viant T., Viel S., Vishneva A., Vogelaar R.B., Wada M., Wang H., Wang Y., Westerdale S., Wheadon R.J., Williams L., Wojcik M.M., Wojcik M., Xiao X., Yang C., Ye Z., Zani A., Zichichi A., Zuzel G., and Zykova M.P.

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astrophysics, dark matter: direct detection, 01 natural sciences, 7. Clean energy, neutrino: flux, charged current, neutrino: supernova, Detectors and Experimental Techniques, physics.ins-det, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Elastic scattering, astro-ph.HE, Dark matter detector, dark matter detectors, Instrumentation and Detectors (physics.ins-det), oscillation, suppression, Supernova, Neutrino detector, astro-ph.IM, target: mass, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, burst, Astrophysics and Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, ARGÔNIO, neutrino: energy, 0103 physical sciences, ionization, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], supernova neutrinos, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, neutrino nucleus: scattering, 010308 nuclear & particles physics, background, dark matter: mass, dark matter: elastic scattering, Astronomy and Astrophysics, dark matter detectors, supernova neutrinos, Type II supernova, sensitivity, Galaxy, liquid argon, coherence, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Electron neutrino, Dark matter detectors, Supernova neutrinos
Abstract

Future liquid-argon DarkSide-20k and ARGO detectors, designed for direct dark matter search, will be sensitive also to core-collapse supernova neutrinos, via coherent elastic neutrino-nucleus scattering. This interaction channel is flavor-insensitive with a high-cross section, enabling for a high-statistics neutrino detection with target masses of $\sim$50~t and $\sim$360~t for DarkSide-20k and ARGO, respectively. Thanks to the low-energy threshold of $\sim$0.5~keV$_{nr}$ achievable by exploiting the ionization channel, DarkSide-20k and ARGO have the potential to discover supernova bursts throughout our galaxy and up to the Small Magellanic Cloud, respectively, assuming a 11-M$_{\odot}$ progenitor star. We report also on the sensitivity to the neutronization burst, whose electron neutrino flux is suppressed by oscillations when detected via charged current and elastic scattering. Finally, the accuracies in the reconstruction of the average and total neutrino energy in the different phases of the supernova burst, as well as its time profile, are also discussed, taking into account the expected background and the detector response., 21 pages, 8 figures

Published
2021
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38. Study of visible light scintillations in liquid argon and its mixtures with methane

Author

Bondar, A., Borisova, E., Buzulutskov, A., Frolov, E., Nosov, V., Oleynikov, V., Sokolov, A., Bondar, A., Borisova, E., Buzulutskov, A., Frolov, E., Nosov, V., Oleynikov, V., and Sokolov, A.

Abstract

In liquid argon TPCs for dark matter search and neutrino detection experiments, primary scintillations are used as a prompt signal of particle scattering, being intensively produced in the vacuum ultraviolet (VUV) due to excimer emission mechanism. On the other hand, there were indications on the production of visible light scintillations in liquid argon, albeit at a much lower intensity, the origin of which is still not clear. The closely related issue is visible light scintillations in liquid argon doped with methane, the interest in which is due to the possible use in neutron veto detectors for those experiments. In this work we study in detail the properties of such scintillations in pure liquid argon and its mixtures with methane. In particular, the absolute photon yield of visible light scintillations in pure liquid argon was measured to be about 200 and 90 photon/MeV for X-rays and alpha particles respectively. In liquid argon doped with methane the photon yield dropped down significantly, by about an order of magnitude at a methane content varying from 0.01 to 1%, and then almost did not change when further increasing the methane content up to 10%. There are firm indications that the mechanism of visible light scintillations in liquid argon and its mixtures with methane is that of neutral bremsstrahlung of primary ionization electrons., Comment: 21 pages, 15 figures, 3 tables. arXiv admin note: text overlap with arXiv:2004.13296

Published
2022

41. Timed global reorganization of protein synthesis during neocortex neurogenesis at codon resolution

Author

Harnett, D., Ambrozkiewicz, M.C., Zinnall, U., Borisova, E., Rusanova, A., Dannenberg, R., Imami, K., Münster-Wandowski, A., Fauler, B., Mielke, T., Selbach, M., Landthaler, M., Spahn, C.M.T., Tarabykin, V., Ohler, U., and Kraushar, M.L.

Subjects
Cancer Research, nervous system, Cardiovascular and Metabolic Diseases, Function and Dysfunction of the Nervous System
Abstract

Translation modulates the timing and amplification of gene expression after transcription. Development of the brain’s neocortex requires precisely timed and spatially targeted gene expression, but the relationship between mRNA vs. protein synthesis throughout the genome is unknown. We perform a comprehensive analysis of the reactants, synthesis, and products of mRNA translation spanning mouse neocortex neurogenesis. Ribosome number in the cortical plate decreases sharply at mid-neurogenesis during a transition in neuronal subtype specification, shifting the fundamental kinetics of protein synthesis, with mRNA and protein levels frequently divergent. Satb2, which drives an essential neuronal subtype-specific program, is a highly dynamically translated mRNA with surprisingly broad transcription across diverse neuronal lineages. Satb2 protein achieves its neuronal subtype expression through timed regulation by the RNA-binding protein Pumilio2. Thus, the refinement of transcriptional programs by protein synthesis is a widespread feature of neuronal specification. Developmental neocortex translatome data are provided in an open-source resource: https://shiny.mdc-berlin.de/cortexomics/.

Published
2021

42. Ire1α-Regulated Rate of mRNA Translation is Required for Acquisition of Identity and Polarity in Upper Layer Cortical Neurons

Author

Ambrozkiewicz, M., Borisova, E., Newman, A., Kraushar, M., Schaub, T., Dannenberg, R., Brockmann, M., Rosário, M., Turko, P., Jahn, O., Kaplan, D., Iwawaki, T., Spahn, C., Rosenmund, C., and Tarabykin, V.

Abstract

Evolutionary expansion of the neocortex is associated with the increase in upper layer neurons. Here, we present Inositol-Requiring Enzyme 1α, Ire1α, as an essential determinant of upper layer fate, neuronal polarization and cortical lamination. We demonstrate a non-canonical function of Ire1α in the regulation of global translation rates in the developing neocortex through its dynamic interaction with the ribosome and regulation of eIF4A1 and eEF-2 expression. Inactivation of Ire1α engenders lower protein synthesis rates associated with stalled ribosomes and decreased number of translation start sites. We show unique sensitivity of upper layer fate to translation rates. Whereas eEF-2 is required for cortical lamination, eIF4A1 regulates acquisition of upper layer fate downstream of Ire1α in a mechanism of translational control dependent on 5’UTR-embedded structural elements in fate determinant genes. Our data unveil developmental regulation of ribosome dynamics as post-transcriptional mechanisms orchestrating neuronal diversity establishment and assembly of cortical layers.

Published
2021

43. DETECTION OF SOMATIC MUTATIONS IN THE BRAF GENE BY PYROSEQUENCING

Author

Dribnokhodova, O. P., primary, Dunaeva, E. A., additional, Leshkina, G. V., additional, Yarygina, E. A., additional, Bukharina, A. Yu., additional, Voiciehovskaya, Ya. A., additional, Borisova, E. V., additional, Bormotova, S. K., additional, Daoud, A. I., additional, Khlavich, V. N., additional, and Mironov, K. O., additional

Published
2021
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49. Separating $${^{39}\hbox {Ar}}$$ <math> <mrow> <msup> <mrow></mrow> <mn>39</mn> </msup> <mtext>Ar</mtext> </mrow> </math> from $${^{40}\hbox {Ar}}$$ <math> <mrow> <msup> <mrow></mrow> <mn>40</mn> </msup> <mtext>Ar</mtext> </mrow> </math> by cryogenic distillation with Aria for dark-matter searches

Author

Agnes, P., Albergo, S., Albuquerque, I., Alexander, T., Alici, A., Alton, A., Amaudruz, P., Arba, M., Arpaia, P., Arcelli, S., Ave, M., Avetissov, I., Avetisov, R., Azzolini, O., Back, H., Balmforth, Z., Barbarian , V., Barrado Olmedo, A., Barrillon, P., Basco, A., Batignani, G., Bondar, A., Bonivento, W., Borisova, E., Bottino, B., Boulay, M., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canesi, E., Canci, N., Cappello, G., Caravati, M., Cárdenas-Montes, M., Cargioli, N., Carlini , M., Carnesecchi, F., Castello, P., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Cela Ruiz, J., Celano, B., Chashin, S., Chepurnov, A., Cicalò, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Conde Vilda, E., Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., D’Aniello, M., D’Auria, S., Da Rocha Rolo, M., Dadoun, O., Daniel, M., Davini, S., De Candia , A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Della Valle, M., Dellacasa, G., De Pasquale, S., Derbin, A., Devoto, A., Di Noto, L., Di Eusanio, F., Dionisi, C., Di Stefano, P., Dolganov, G., Dongiovanni, D., Dordei, F., Downing, M., Erjavec, T., Falciano, S., Farenzena, S., Fernandez Diaz, M., Filip, C., Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Garcia Abia, P., Gendotti, A., Ghiano, C., Giampaolo, R., Giganti, C., Giorgi, M., Giovanetti, G., Gligan, M., Goicoechea Casanueva, V., Gola, A., Goretti, A., Graciani Diaz, R., Grigoriev, G., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Guetti, M., Gulino, M., Guo, C., Hackett, B., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E., Ianni, An., Ippolito, V., James, C., Jillings, C., Kachru, P., Kemp, A., Kendziora, C., Keppel, G., Khomyakov, A., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., La Delfa, L., La Grasta, D., Lai, M., Lami, N., Langrock, S., Leyton, M., Li, X., Lidey, L., Lippi, F., Lissia, M., Longo, G., Maccioni, N., Machulin, I., Mapelli, L., Marasciulli, A., Margotti, A., Mari, S., Maricic, J., Marinelli, M., Martínez, M., Martinez Rojas, A., Martini, A., Mascia, M., Masetto, M., Masoni, A., Mazzi, A., McDonald, A., Mclaughlin, J., Messina, A., Meyers, P., Miletic, T., Milincic, R., Miola, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E., Mróz, T., Muratova, V., Murenu, A., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Navrer Agasson, A., Nessi, M., Nikulin, I., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P., Pellegrini, L., Pellegrino, C., Pelczar, K., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pinna, T., Pocar, A., Podda, P., Poehlmann, D., Pordes, S., Poudel, S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese , L., Ripoli, C., Rivetti, A., Rode, J., Romero, L., Rossi, M., Rubbia, A., Rucaj, M., Sabiu, G., Salatino, P., Samoylov, O., Sánchez García, E., Sandford, E., Sanfilippo, S., Sangiorgio, V., Santacroce, V., Santone, D., Santorelli, R., Santucci, A., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Semenov, D., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M., Smirnov, O., Smith, B., Sokolov, A., Stefanizzi, R., Steri, A., Stracka, S., Strickland , V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A., Szucs-Balazs, J., Tartaglia, R., Testera, G., Thorpe, T., Tonazzo, A., Torres-Lara, S., Tosti, S., Tricomi, A., Tuveri, M., Unzhakov, E., Usai, G., Vallivilayil John, T., Vescovi, S., Viant, T., Viel, S., Vishneva , A., Vogelaar, R., Wada, M., Wang, H., Wang, Y., Westerdale , S., Wheadon, R., Williams, L., M.Wojcik, Ma., Wojcik, Ma., Xiao, X., Yang, C., Zani, A., Zenobio, F., Zichichi, A., Zuzel, G., and Zykova, M.

Abstract

Aria is a plant hosting a $${350}\,\hbox {m}$$ 350 m cryogenic isotopic distillation column, the tallest ever built, which is being installed in a mine shaft at Carbosulcis S.p.A., Nuraxi-Figus (SU), Italy. Aria is one of the pillars of the argon dark-matter search experimental program, lead by the Global Argon Dark Matter Collaboration. It was designed to reduce the isotopic abundance of $${^{39}\hbox {Ar}}$$ 39 Ar in argon extracted from underground sources, called Underground Argon (UAr), which is used for dark-matter searches. Indeed, $${^{39}\hbox {Ar}}$$ 39 Ar is a $$\beta $$ β -emitter of cosmogenic origin, whose activity poses background and pile-up concerns in the detectors. In this paper, we discuss the requirements, design, construction, tests, and projected performance of the plant for the isotopic cryogenic distillation of argon. We also present the successful results of the isotopic cryogenic distillation of nitrogen with a prototype plant.

Published
2021

50. Semantic Reconstruction of Vocabulary with a Speed Value Derived from Verbs of Object Movement

Author

Borisova, E. O.

Subjects
SEMANTIC DERIVATION, VERB, RUSSIAN DIALECT VOCABULARY, LINGUISTIC PICTURE OF THE WORLD, ГЛАГОЛ, ETHNOLINGUISTICS, ЭТНОЛИНГВИСТИКА, РУССКАЯ ДИАЛЕКТНАЯ ЛЕКСИКА, СЕМАНТИЧЕСКАЯ ДЕРИВАЦИЯ, ЯЗЫКОВАЯ КАРТИНА МИРА
Abstract

Рассматриваются глаголы перемещения объекта субъектом, развивающие семантику низкой и высокой скорости действия. Основой исследования становится по большей части лексика русских народных говоров, однако привлекаются также факты литературного языка. Выделяется несколько лексических групп, в рамках которых могут развиваться «скоростные» значения, — в зависимости от обозначаемого глаголами способа перемещения: не отрывая от земли; силой своего движения; по воздуху; присвоение; отдача; помещение во что-либо. Внутри каждой группы описываются основные модели развития лексем с семантикой скорости, определяемые особенностями называемого действия, значением аффиксов и возможными ассоциативными рядами. Обнаруживается, что, хотя перемещение объекта субъектом — достаточно обширная лексическая группа, непосредственно в обозначениях скорости представлен ограниченный набор моделей, реализующихся с привлечением синонимичных глаголов (тянуть, тащить и волочить; бросать, кидать, метать и швырять; хватать, хапать, брать и взять и т. д.). Описываются корреляции семантики скорости с другими семантическими полями, возникающие в рамках данной тематической группы. The article deals with the verbs of moving an object by the subject, developing the semantics of low and high speed of action. The research is mainly based on the vocabulary of Russian folk dialects, but the facts of the literary language are also involved. Several lexical groups are distinguished, within which “speed” meanings can develop, depending on the way of movement indicated by the verbs: without lifting off the ground; by the strength of your movement; by air; appropriation; giving away; putting into something. Within each group, the main models of the development of lexemes with the semantics of speed, determined by the features of the called action, the meaning of affixes and possible associative series are described. It is found that, although the movement of an object by a subject is a fairly extensive lexical group, a limited set of models are presented directly in the designation of speed, which are implemented using synonymous verbs (tyanut’ [pull], tashchit’ [drag] and volochit’ [crawl along]; brosat’ [throw], kidat’ [cast] etc; khvatat’ [grab] etc.). The correlations of the semantics of speed with other semantic fields that arise within the framework of this thematic group are described. Исследование выполнено при поддержке гранта РНФ № 20-18-00223 «Этимологизация и семантическая реконструкция русской диалектной лексики». The reported study was funded by the Russian Science Foundation, project number 20-18-00223 “Etymologization and semantic reconstruction of the Russian dialect vocabulary”.

Published
2021

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