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1,052 results on '"Borisova, E."'

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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7. 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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8. 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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9. 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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10. 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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13. 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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15. 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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16. 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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17. 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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18. 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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19. 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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35. Latin. LEGE ARTIS

Author

Borisova, E. O., primary, Driker, M. B., additional, Morgunova, O. V., additional, Olekhnovich, O. G., additional, and Tikhomirova, A. V., additional

Published
2021
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41. Differences in the Diet of Reproductively Isolated Ecotypes of Killer Whales (Orcinus orca Linnaeus, 1758) in the Seas of the Russian Far East

Author

Filatova, O. A., primary, Fedutin, I. D., additional, Belonovich, O. A., additional, Borisova, E. A., additional, Volkova, E. V., additional, Ivkovich, T. V., additional, Ismail, M. E., additional, Meschersky, I. G., additional, Titova, O. V., additional, Fomin, S. V., additional, and Shpak, O. V., additional

Published
2023
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45. 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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48. SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range

Author

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., Barrado Olmedo, A., Batignani, G., Bisogni, M. G., Bocci, V., Bondar, A., Bonfini, G., Bonivento, W., Borisova, E., Bottino, B., Boulay, M. G., Bunker, R., Bussino, S., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Candela, A., Cantini, C., Caravati, M., Cariello, M., Carnesecchi, F., Castellani, A., Castello, P., Cavalcante, P., Cavazza, D., Cavuoti, S., Cebrian, S., Cela Ruiz, J. M., Celano, B., Cereseto, R., Chashin, S., Cheng, W., Chepurnov, A., Cicalò, C., Cifarelli, L., Citterio, M., Coccetti, F., Cocco, V., Colocci, M., Conde Vilda, E., Consiglio, L., Cossio, F., Covone, G., Crivelli, P., D’Antone, I., D’Incecco, M., Da Rocha Rolo, M. D., 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., Eusanio, F. Di, Di Noto, L., Di Pietro, G., Di Stefano, P., Dionisi, C., Dolganov, G., Dordei, F., Downing, M., Edalatfar, F., Empl, A., Fernandez Diaz, M., 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., Garcia Abia, P., Gascón Fora, D., 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., Graciani Diaz, R., 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., Martinez Rojas, A. D., 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., Navrer Agasson, A., 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., Sánchez García, E., 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.

Published
2021
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49. 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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