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  1. Article ; Online: Search for Dark-Matter-Nucleon Interactions via Migdal Effect with DarkSide-50.

    Agnes, P / Albuquerque, I F M / Alexander, T / Alton, A K / Ave, M / Back, H O / Batignani, G / Biery, K / Bocci, V / Bonivento, W M / Bottino, B / Bussino, S / Cadeddu, M / Cadoni, M / Calaprice, F / Caminata, A / Campos, M D / Canci, N / Caravati, M /
    Cargioli, N / Cariello, M / Carlini, M / Cataudella, V / Cavalcante, P / Cavuoti, S / Chashin, S / Chepurnov, A / Cicalò, C / Covone, G / D'Angelo, D / Davini, S / De Candia, A / De Cecco, S / De Filippis, G / De Rosa, G / Derbin, A V / Devoto, A / D'Incecco, M / Dionisi, C / Dordei, F / Downing, M / D'Urso, D / Fairbairn, M / Fiorillo, G / Franco, D / Gabriele, F / Galbiati, C / Ghiano, C / Giganti, C / Giovanetti, G K / Goretti, A M / Grilli di Cortona, G / Grobov, A / Gromov, M / Guan, M / Gulino, M / Hackett, B R / Herner, K / Hessel, T / Hosseini, B / Hubaut, F / Hungerford, E V / Ianni, An / Ippolito, V / Keeter, K / Kendziora, C L / Kimura, M / Kochanek, I / Korablev, D / Korga, G / Kubankin, A / Kuss, M / La Commara, M / Lai, M / Li, X / Lissia, M / Longo, G / Lychagina, O / Machulin, I N / Mapelli, L P / Mari, S M / Maricic, J / Messina, A / Milincic, R / Monroe, J / Morrocchi, M / Mougeot, X / Muratova, V N / Musico, P / Nozdrina, A O / Oleinik, A / Ortica, F / Pagani, L / Pallavicini, M / Pandola, L / Pantic, E / Paoloni, E / Pelczar, K / Pelliccia, N / Piacentini, S / Pocar, A / Poehlmann, D M / Pordes, S / Poudel, S S / Pralavorio, P / Price, D D / Ragusa, F / Razeti, M / Razeto, A / Renshaw, A L / Rescigno, M / Rode, J / Romani, A / Sablone, D / Samoylov, O / Sandford, E / Sands, W / Sanfilippo, S / Savarese, C / Schlitzer, B / Semenov, D A / Shchagin, A / Sheshukov, A / Skorokhvatov, M D / Smirnov, O / Sotnikov, A / Stracka, S / Suvorov, Y / Tartaglia, R / Testera, G / Tonazzo, A / Unzhakov, E V / Vishneva, A / Vogelaar, R B / Wada, M / Wang, H / Wang, Y / Westerdale, S / Wojcik, M M / Xiao, X / Yang, C / Zuzel, G

    Physical review letters

    2023  Volume 130, Issue 10, Page(s) 101001

    Abstract: Dark matter elastic scattering off nuclei can result in the excitation and ionization of the recoiling atom through the so-called Migdal effect. The energy deposition from the ionization electron adds to the energy deposited by the recoiling nuclear ... ...

    Abstract Dark matter elastic scattering off nuclei can result in the excitation and ionization of the recoiling atom through the so-called Migdal effect. The energy deposition from the ionization electron adds to the energy deposited by the recoiling nuclear system and allows for the detection of interactions of sub-GeV/c^{2} mass dark matter. We present new constraints for sub-GeV/c^{2} dark matter using the dual-phase liquid argon time projection chamber of the DarkSide-50 experiment with an exposure of (12 306±184)  kg d. The analysis is based on the ionization signal alone and significantly enhances the sensitivity of DarkSide-50, enabling sensitivity to dark matter with masses down to 40  MeV/c^{2}. Furthermore, it sets the most stringent upper limit on the spin independent dark matter nucleon cross section for masses below 3.6  GeV/c^{2}.
    Language English
    Publishing date 2023-03-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.130.101001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50.

    Agnes, P / Albuquerque, I F M / Alexander, T / Alton, A K / Ave, M / Back, H O / Batignani, G / Biery, K / Bocci, V / Bonivento, W M / Bottino, B / Bussino, S / Cadeddu, M / Cadoni, M / Calaprice, F / Caminata, A / Campos, M D / Canci, N / Caravati, M /
    Cargioli, N / Cariello, M / Carlini, M / Cataudella, V / Cavalcante, P / Cavuoti, S / Chashin, S / Chepurnov, A / Cicalò, C / Covone, G / D'Angelo, D / Davini, S / De Candia, A / De Cecco, S / De Filippis, G / De Rosa, G / Derbin, A V / Devoto, A / D'Incecco, M / Dionisi, C / Dordei, F / Downing, M / D'Urso, D / Fiorillo, G / Franco, D / Gabriele, F / Galbiati, C / Ghiano, C / Giganti, C / Giovanetti, G K / Goretti, A M / Grilli di Cortona, G / Grobov, A / Gromov, M / Guan, M / Gulino, M / Hackett, B R / Herner, K / Hessel, T / Hosseini, B / Hubaut, F / Hungerford, E V / Ianni, An / Ippolito, V / Keeter, K / Kendziora, C L / Kimura, M / Kochanek, I / Korablev, D / Korga, G / Kubankin, A / Kuss, M / La Commara, M / Lai, M / Li, X / Lissia, M / Longo, G / Lychagina, O / Machulin, I N / Mapelli, L P / Mari, S M / Maricic, J / Messina, A / Milincic, R / Monroe, J / Morrocchi, M / Mougeot, X / Muratova, V N / Musico, P / Nozdrina, A O / Oleinik, A / Ortica, F / Pagani, L / Pallavicini, M / Pandola, L / Pantic, E / Paoloni, E / Pelczar, K / Pelliccia, N / Piacentini, S / Pocar, A / Poehlmann, D M / Pordes, S / Poudel, S S / Pralavorio, P / Price, D D / Ragusa, F / Razeti, M / Razeto, A / Renshaw, A L / Rescigno, M / Rode, J / Romani, A / Sablone, D / Samoylov, O / Sands, W / Sanfilippo, S / Sandford, E / Savarese, C / Schlitzer, B / Semenov, D A / Shchagin, A / Sheshukov, A / Skorokhvatov, M D / Smirnov, O / Sotnikov, A / Stracka, S / Suvorov, Y / Tartaglia, R / Testera, G / Tonazzo, A / Unzhakov, E V / Vishneva, A / Vogelaar, R B / Wada, M / Wang, H / Wang, Y / Westerdale, S / Wojcik, M M / Xiao, X / Yang, C / Zuzel, G

    Physical review letters

    2023  Volume 130, Issue 10, Page(s) 101002

    Abstract: We present a search for dark matter particles with sub-GeV/c^{2} masses whose interactions have final state electrons using the DarkSide-50 experiment's (12 306±184)  kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we ... ...

    Abstract We present a search for dark matter particles with sub-GeV/c^{2} masses whose interactions have final state electrons using the DarkSide-50 experiment's (12 306±184)  kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section σ[over ¯]_{e}, the axioelectric coupling constant g_{Ae}, and the dark photon kinetic mixing parameter κ. We also set the first dark matter direct-detection constraints on the mixing angle |U_{e4}|^{2} for keV/c^{2} sterile neutrinos.
    Language English
    Publishing date 2023-03-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.130.101002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: GIGJ: A Crustal Gravity Model of the Guangdong Province for Predicting the Geoneutrino Signal at the JUNO Experiment

    Reguzzoni, M. / Rossi, L. / Baldoncini, M. / Callegari, I. / Poli, P. / Sampietro, D. / Strati, V. / Mantovani, F. / Andronico, G. / Antonelli, V. / Bellato, M. / Bernieri, E. / Brigatti, A. / Brugnera, R. / Budano, A. / Buscemi, M. / Bussino, S. / Caruso, R. / Chiesa, D. /
    Corti, D. / Dal Corso, F. / Ding, X.F. / Dusini, S. / Fabbri, A. / Fiorentini, G. / Ford, R. / Formozov, A. / Galet, G. / Garfagnini, A. / Giammarchi, M. / Giaz, A. / Grassi, M. / Insolia, A. / Isocrate, R. / Lippi, I. / Longhitano, F. / Lo Presti, D. / Lombardi, P. / Malyshkin, Y. / Marini, F. / Mari, S.M. / Martellini, C. / Meroni, E. / Mezzetto, M. / Miramonti, L. / Monforte, S. / Montuschi, M. / Nastasi, M. / Ortica, F. / Paoloni, A. / Parmeggiano, S. / Pedretti, D. / Pelliccia, N. / Pompilio, R. / Previtali, E. / Ranucci, G. / Re, A.C. / Ricci, B. / Romani, A. / Saggese, P. / Salamanna, G. / Sawy, F.H. / Settanta, G. / Sisti, M. / Sirignano, C. / Spinetti, M. / Stanco, L. / Verde, G. / Votano, L.

    Journal of geophysical research. 2019 Apr., v. 124, no. 4

    2019  

    Abstract: Gravimetric methods are expected to play a decisive role in geophysical modeling of the regional crustal structure applied to geoneutrino studies. GIGJ (GOCE Inversion for Geoneutrinos at JUNO) is a 3‐D numerical model constituted by ~46 × 10³ voxels of ... ...

    Abstract Gravimetric methods are expected to play a decisive role in geophysical modeling of the regional crustal structure applied to geoneutrino studies. GIGJ (GOCE Inversion for Geoneutrinos at JUNO) is a 3‐D numerical model constituted by ~46 × 10³ voxels of 50 × 50 × 0.1 km, built by inverting GOCE (Gravity field and steady‐state Ocean Circulation Explorer) gravimetric data over the 6° × 4° area centered at the JUNO (Jiangmen Underground Neutrino Observatory) experiment, currently under construction in the Guangdong Province (China). The a priori modeling is based on the adoption of deep seismic sounding profiles, receiver functions, teleseismic P wave velocity models, and Moho depth maps, according to their own accuracy and spatial resolution. The inversion method allowed for integrating GOCE data with the a priori information and some regularization conditions through a Bayesian approach and a stochastic optimization. GIGJ fits the highly accurate and homogeneously distributed GOCE gravity data with a ~1 mGal standard deviation of the residuals, compatible with the observation accuracy. GIGJ provides a site‐specific subdivision of the crustal layers masses, of which uncertainties include estimation errors, associated to the gravimetric solution, and systematic uncertainties, related to the adoption of a fixed sedimentary layer. A consequence of this local rearrangement of the crustal layer thicknesses is a ~21% reduction and a ~24% increase of the middle and lower crust geoneutrino signal, respectively. The geophysical uncertainties of geoneutrino signals at JUNO produced by unitary uranium and thorium abundances distributed in the upper, middle, and lower crust are reduced by 77%, 55%, and 78%, respectively. The numerical model is available at this site (http://www.fe.infn.it/radioactivity/GIGJ).
    Keywords Bayesian theory ; geophysics ; gravity ; mathematical models ; research ; standard deviation ; thorium ; uranium ; China
    Language English
    Dates of publication 2019-04
    Size p. 4231-4249.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ISSN 2169-9313
    DOI 10.1029/2018JB016681
    Database NAL-Catalogue (AGRICOLA)

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  4. Book ; Online: Distillation and stripping pilot plants for the JUNO neutrino detector

    Lombardi, P. / Montuschi, M. / Formozov, A. / Brigatti, A. / Parmeggiano, S. / Pompilio, R. / Depnering, W. / Franke, S. / Gaigher, R. / Joutsenvaara, J. / Mengucci, A. / Meroni, E. / Steiger, H. / Mantovani, F. / Ranucci, G. / Andronico, G. / Antonelli, V. / Baldoncini, M. / Bellato, M. /
    Bernieri, E. / Brugnera, R. / Budano, A. / Buscemi, M. / Bussino, S. / Caruso, R. / Chiesa, D. / Clementi, C. / Corti, D. / Corso, F. Dal / Ding, X. F. / Dusini, S. / Fabbri, A. / Fiorentini, G. / Ford, R. / Galet, G. / Garfagnini, A. / Giammarchi, M. / Giaz, A. / Grassi, M. / Insolia, A. / Isocrate, R. / Lippi, I. / Malyshkin, Y. / Mari, S. M. / Marini, F. / Martellini, C. / Martini, A. / Mezzetto, M. / Miramonti, L. / Monforte, S. / Montini, P. / Nastasi, M. / Ortica, F. / Paoloni, A. / Pedretti, D. / Pelliccia, N. / Previtali, E. / Re, A. C. / Ricci, B. / Riondino, D. / Romani, A. / Saggese, P. / Salamanna, G. / Sawy, F. H. / Settanta, G. / Sisti, M. / Sirignano, C. / Stanco, L. / Strati, V. / Verde, G. / Votano, L.

    design, operations and reliability

    2019  

    Abstract: This paper describes the design, construction principles and operations of the distillation and stripping pilot plants tested at the Daya Bay Neutrino Laboratory, with the perspective to adapt this processes, system cleanliness and leak-tightness to the ... ...

    Abstract This paper describes the design, construction principles and operations of the distillation and stripping pilot plants tested at the Daya Bay Neutrino Laboratory, with the perspective to adapt this processes, system cleanliness and leak-tightness to the final full scale plants that will be used for the purification of the liquid scintillator used in the JUNO neutrino detector. The main goal of these plants is to remove radio impurities from the liquid scintillator while increasing its optical attenuation length. Purification of liquid scintillator will be performed with a system combining alumina oxide, distillation, water extraction and steam (or N2 gas) stripping. Such a combined system will aim at obtaining a total attenuation length greater than 20 m at 430 nm, and a bulk radiopurity for 238U and 232Th in the 10-15 to 10-17 g/g range. The pilot plants commissioning and operation have also provided valuable information on the degree of reliability of their main components, which will be particularly useful for the design of the final full scale purification equipment for the JUNO liquid scintillator. This paper describe two of the five pilot plants since the Alumina Column, Fluor mixing and the Water Extraction plants are in charge of the Chinese part of the collaboration.
    Keywords Physics - Instrumentation and Detectors
    Subject code 621
    Publishing date 2019-02-14
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Book ; Online: Embedded Readout Electronics R&D for the Large PMTs in the JUNO Experiment

    Bellato, M. / Bergnoli, A. / Brugnera, A. / Chen, S. / Chen, Z. / Clerbaux, B. / Corso, F. dal / Corti, D. / Dong, J. / Galet, G. / Garfagnini, A. / Giaz, A. / Gong, G. / Grewing, C. / Hu, J. / Isocrate, R. / Jiang, X. / Li, F. / Lippi, I. /
    Marini, F. / Ning, Z. / Olshevskiyi, A. G. / Pedretti, D. / Petitjean, P. A. / Robens, M. / Shutov, V. / Stahl, A. / Steinmannh, J. / Sun, Y. / van Waasen, S. / Wang, Y. / Wang, Z. / Wei, W. / Yan, X. / Yang, Y. / Aiello, A. / Andronico, A. / Antonelli, V. / Bandini, W. / Brigatti, A. / Barresi, A. / Budano, A. / Bruno, R. / Cabrera, A. / Cammi, A. / Caruso, R. / Chiesa, D. / Clementi, C. / Costa, S. / Ding, X. / Dusini, S. / Fabbri, A. / Fargetta, M. / Fiorentini, G. / Ford, R. / Formozov, A. / Giammarchi, M. / Grassi, M. / Landini, C. / Lombardi, P. / Lombardo, C. / Malyshkin, Y. / Mantovani, F. / Mari, S. M. / Martellini, C. / Martini, A. / Meroni, E. / Mezzetto, M. / Miramonti, L. / Montini, P. / Montuschi, M. / Nastasi, M. / Ortica, F. / Paoloni, A. / Parmeggiano, S. / Pelliccia, N. / Previtali, E. / Ranucci, G. / Riondino, D. / Re, A. C. / Ricci, B. / Romani, A. / Saggese, P. / Salamanna, G. / Sawy, F. H. / Serafini, A. / Settanta, G. / Sirignano, C. / Sisti, M. / Stanco, L. / Strati, V. / Tuvè, C. / Verde, G. / Votano, L.

    2020  

    Abstract: Jiangmen Underground neutrino Observatory (JUNO) is a next generation liquid scintillator neutrino experiment under construction phase in South China. Thanks to the anti-neutrinos produced by the nearby nuclear power plants, JUNO will primarily study the ...

    Abstract Jiangmen Underground neutrino Observatory (JUNO) is a next generation liquid scintillator neutrino experiment under construction phase in South China. Thanks to the anti-neutrinos produced by the nearby nuclear power plants, JUNO will primarily study the neutrino mass hierarchy, one of the open key questions in neutrino physics. One key ingredient for the success of the measurement is to use high speed, high resolution sampling electronics located very close to the detector signal. Linearity in the response of the electronics in another important ingredient for the success of the experiment. During the initial design phase of the electronics, a custom design, with the Front-End and Read-Out electronics located very close to the detector analog signal has been developed and successfully tested. The present paper describes the electronics structure and the first tests performed on the prototypes. The electronics prototypes have been tested and they show good linearity response, with a maximum deviation of 1.3% over the full dynamic range (1-1000 p.e.), fulfilling the JUNO experiment requirements.

    Comment: 20 pages, 15 figures
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 621
    Publishing date 2020-03-18
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment.

    Agnes, P / Albuquerque, I F M / Alexander, T / Alton, A K / Araujo, G R / Asner, D M / Ave, M / Back, H O / Baldin, B / Batignani, G / Biery, K / Bocci, V / Bonfini, G / Bonivento, W / Bottino, B / Budano, F / Bussino, S / Cadeddu, M / Cadoni, M /
    Calaprice, F / Caminata, A / Canci, N / Candela, A / Caravati, M / Cariello, M / Carlini, M / Carpinelli, M / Catalanotti, S / Cataudella, V / Cavalcante, P / Cavuoti, S / Cereseto, R / Chepurnov, A / Cicalò, C / Cifarelli, L / Cocco, A G / Covone, G / D'Angelo, D / D'Incecco, M / D'Urso, D / Davini, S / De Candia, A / De Cecco, S / De Deo, M / De Filippis, G / De Rosa, G / De Vincenzi, M / Demontis, P / Derbin, A V / Devoto, A / Di Eusanio, F / Di Pietro, G / Dionisi, C / Downing, M / Edkins, E / Empl, A / Fan, A / Fiorillo, G / Fomenko, K / Franco, D / Gabriele, F / Gabrieli, A / Galbiati, C / Garcia Abia, P / Ghiano, C / Giagu, S / Giganti, C / Giovanetti, G K / Gorchakov, O / Goretti, A M / Granato, F / Gromov, M / Guan, M / Guardincerri, Y / Gulino, M / Hackett, B R / Hassanshahi, M H / Herner, K / Hosseini, B / Hughes, D / Humble, P / Hungerford, E V / Ianni, Al / Ianni, An / Ippolito, V / James, I / Johnson, T N / Kahn, Y / Keeter, K / Kendziora, C L / Kochanek, I / Koh, G / Korablev, D / Korga, G / Kubankin, A / Kuss, M / La Commara, M / Lai, M / Li, X / Lisanti, M / Lissia, M / Loer, B / Longo, G / Ma, Y / Machado, A A / Machulin, I N / Mandarano, A / Mapelli, L / Mari, S M / Maricic, J / Martoff, C J / Messina, A / Meyers, P D / Milincic, R / Mishra-Sharma, S / Monte, A / Morrocchi, M / Mount, B J / Muratova, V N / Musico, P / Nania, R / Navrer Agasson, A / Nozdrina, A O / Oleinik, A / Orsini, M / Ortica, F / Pagani, L / Pallavicini, M / Pandola, L / Pantic, E / Paoloni, E / Pazzona, F / Pelczar, K / Pelliccia, N / Pesudo, V / Picciau, E / Pocar, A / Pordes, S / Poudel, S S / Pugachev, D A / Qian, H / Ragusa, F / Razeti, M / Razeto, A / Reinhold, B / Renshaw, A L / Rescigno, M / Riffard, Q / Romani, A / Rossi, B / Rossi, N / Sablone, D / Samoylov, O / Sands, W / Sanfilippo, S / Sant, M / Santorelli, R / Savarese, C / Scapparone, E / Schlitzer, B / Segreto, E / Semenov, D A / Shchagin, A / Sheshukov, A / Singh, P N / Skorokhvatov, M D / Smirnov, O / Sotnikov, A / Stanford, C / Stracka, S / Suffritti, G B / Suvorov, Y / Tartaglia, R / Testera, G / Tonazzo, A / Trinchese, P / Unzhakov, E V / Verducci, M / Vishneva, A / Vogelaar, B / Wada, M / Waldrop, T J / Wang, H / Wang, Y / Watson, A W / Westerdale, S / Wojcik, M M / Wojcik, M / Xiang, X / Xiao, X / Yang, C / Ye, Z / Zhu, C / Zichichi, A / Zuzel, G

    Physical review letters

    2018  Volume 121, Issue 11, Page(s) 111303

    Abstract: We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized ... ...

    Abstract We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized electrons extracted from the liquid argon target. The detector has a very high trigger probability for these signals, allowing for an analysis threshold of three extracted electrons, or approximately 0.05 keVee. We calculate the expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100  MeV/c^{2}.
    Language English
    Publishing date 2018-09-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.121.111303
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Low-Mass Dark Matter Search with the DarkSide-50 Experiment.

    Agnes, P / Albuquerque, I F M / Alexander, T / Alton, A K / Araujo, G R / Asner, D M / Ave, M / Back, H O / Baldin, B / Batignani, G / Biery, K / Bocci, V / Bonfini, G / Bonivento, W / Bottino, B / Budano, F / Bussino, S / Cadeddu, M / Cadoni, M /
    Calaprice, F / Caminata, A / Canci, N / Candela, A / Caravati, M / Cariello, M / Carlini, M / Carpinelli, M / Catalanotti, S / Cataudella, V / Cavalcante, P / Cavuoti, S / Cereseto, R / Chepurnov, A / Cicalò, C / Cifarelli, L / Cocco, A G / Covone, G / D'Angelo, D / D'Incecco, M / D'Urso, D / Davini, S / De Candia, A / De Cecco, S / De Deo, M / De Filippis, G / De Rosa, G / De Vincenzi, M / Demontis, P / Derbin, A V / Devoto, A / Di Eusanio, F / Di Pietro, G / Dionisi, C / Downing, M / Edkins, E / Empl, A / Fan, A / Fiorillo, G / Fomenko, K / Franco, D / Gabriele, F / Gabrieli, A / Galbiati, C / Garcia Abia, P / Ghiano, Chiara / Giagu, S / Giganti, C / Giovanetti, G K / Gorchakov, O / Goretti, A M / Granato, F / Gromov, M / Guan, M / Guardincerri, Y / Gulino, M / Hackett, B R / Hassanshahi, M H / Herner, K / Hosseini, B / Hughes, D / Humble, P / Hungerford, E V / Ianni, Al / Ianni, An / Ippolito, V / James, I / Johnson, T N / Kahn, Y / Keeter, K / Kendziora, C L / Kochanek, I / Koh, G / Korablev, D / Korga, G / Kubankin, A / Kuss, M / La Commara, M / Lai, M / Li, X / Lisanti, M / Lissia, M / Loer, B / Longo, G / Ma, Y / Machado, A A / Machulin, I N / Mandarano, A / Mapelli, L / Mari, S M / Maricic, J / Martoff, C J / Messina, A / Meyers, P D / Milincic, R / Mishra-Sharma, S / Monte, A / Morrocchi, M / Mount, B J / Muratova, V N / Musico, P / Nania, R / Navrer Agasson, A / Nozdrina, A O / Oleinik, A / Orsini, M / Ortica, F / Pagani, L / Pallavicini, M / Pandola, L / Pantic, E / Paoloni, E / Pazzona, F / Pelczar, K / Pelliccia, N / Pesudo, V / Pocar, A / Pordes, S / Poudel, S S / Pugachev, D A / Qian, H / Ragusa, F / Razeti, M / Razeto, A / Reinhold, B / Renshaw, A L / Rescigno, M / Riffard, Q / Romani, A / Rossi, B / Rossi, N / Sablone, D / Samoylov, O / Sands, W / Sanfilippo, S / Sant, M / Santorelli, R / Savarese, C / Scapparone, E / Schlitzer, B / Segreto, E / Semenov, D A / Shchagin, A / Sheshukov, A / Singh, P N / Skorokhvatov, M D / Smirnov, O / Sotnikov, A / Stanford, C / Stracka, S / Suffritti, G B / Suvorov, Y / Tartaglia, R / Testera, G / Tonazzo, A / Trinchese, P / Unzhakov, E V / Verducci, M / Vishneva, A / Vogelaar, B / Wada, M / Waldrop, T J / Wang, H / Wang, Y / Watson, A W / Westerdale, S / Wojcik, M M / Wojcik, M / Xiang, X / Xiao, X / Yang, C / Ye, Z / Zhu, C / Zichichi, A / Zuzel, G

    Physical review letters

    2018  Volume 121, Issue 8, Page(s) 81307

    Abstract: We present the results of a search for dark matter weakly interacting massive particles (WIMPs) in the mass range below 20  GeV/c^{2} using a target of low-radioactivity argon with a 6786.0 kg d exposure. The data were obtained using the DarkSide-50 ... ...

    Abstract We present the results of a search for dark matter weakly interacting massive particles (WIMPs) in the mass range below 20  GeV/c^{2} using a target of low-radioactivity argon with a 6786.0 kg d exposure. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso. The analysis is based on the ionization signal, for which the DarkSide-50 time projection chamber is fully efficient at 0.1  keVee. The observed rate in the detector at 0.5  keVee is about 1.5  event/keVee/kg/d and is almost entirely accounted for by known background sources. We obtain a 90% C.L. exclusion limit above 1.8  GeV/c^{2} for the spin-independent cross section of dark matter WIMPs on nucleons, extending the exclusion region for dark matter below previous limits in the range 1.8-6  GeV/c^{2}.
    Language English
    Publishing date 2018-09-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.121.081307
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Book ; Online: Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector

    Bay, Daya / collaborations, JUNO / : / Abusleme, A. / Adam, T. / Ahmad, S. / Aiello, S. / Akram, M. / Ali, N. / An, F. P. / An, G. P. / An, Q. / Andronico, G. / Anfimov, N. / Antonelli, V. / Antoshkina, T. / Asavapibhop, B. / de André, J. P. A. M. / Babic, A. /
    Balantekin, A. B. / Baldini, W. / Baldoncini, M. / Band, H. R. / Barresi, A. / Baussan, E. / Bellato, M. / Bernieri, E. / Biare, D. / Birkenfeld, T. / Bishai, M. / Blin, S. / Blum, D. / Blyth, S. / Bordereau, C. / Brigatti, A. / Brugnera, R. / Budano, A. / Burgbacher, P. / Buscemi, M. / Bussino, S. / Busto, J. / Butorov, I. / Cabrera, A. / Cai, H. / Cai, X. / Cai, Y. K. / Cai, Z. Y. / Cammi, A. / Campeny, A. / Cao, C. Y. / Cao, G. F. / Cao, J. / Caruso, R. / Cerna, C. / Chakaberia, I. / Chang, J. F. / Chang, Y. / Chen, H. S. / Chen, P. A. / Chen, P. P. / Chen, S. M. / Chen, S. J. / Chen, X. R. / Chen, Y. W. / Chen, Y. X. / Chen, Y. / Chen, Z. / Cheng, J. / Cheng, Y. P. / Cheng, Z. K. / Chepurnov, A. / Cherwinka, J. J. / Chiarello, F. / Chiesa, D. / Chimenti, P. / Chu, M. C. / Chukanov, A. / Chuvashova, A. / Clementi, . / Clerbaux, B. / Di Lorenzo, S. Conforti / Corti, D. / Costa, S. / Corso, F. D. / Cummings, J. P. / Dalager, O. / De La Taille, C. / Deng, F. S. / Deng, J. W. / Deng, Z. / Deng, Z. Y. / Depnering, W. / Diaz, M. / Ding, X. F. / Ding, Y. Y. / Dirgantara, B. / Dmitrievsky, S. / Diwan, M. V. / Dohnal, T. / Donchenko, G. / Dong, J. M. / Dornic, D. / Doroshkevich, E. / Dove, J. / Dracos, M. / Druillole, F. / Du, S. X. / Dusini, S. / Dvorak, M. / Dwyer, D. A. / Enqvist, T. / Enzmann, H. / Fabbri, A. / Fajt, L. / Fan, D. H. / Fan, L. / Fang, C. / Fang, J. / Fatkina, A. / Fedoseev, D. / Fekete, V. / Feng, L. C. / Feng, Q. C. / Fiorentini, G. / Ford, R. / Formozov, A. / Fournier, A. / Franke, S. / Gallo, J. P. / Gan, H. N. / Gao, F. / Garfagnini, A. / Göttel, A. / Genster, C. / Giammarchi, M. / Giaz, A. / Giudice, N. / Giuliani, F. / Gonchar, M. / Gong, G. H. / Gong, H. / Gorchakov, O. / Gornushkin, Y. / Grassi, M. / Grewing, C. / Gromov, M. / Gromov, V. / Gu, M. H. / Gu, W. Q. / Gu, X. F. / Gu, Y. / Guan, M. Y. / Guardone, N. / Gul, M. / Guo, C. / Guo, J. Y. / Guo, L. / Guo, W. L. / Guo, X. H. / Guo, Y. H. / Guo, Z. / Haacke, M. / Hackenburg, R. W. / Hackspacher, P. / Hagner, C. / Han, R. / Han, Y. / Hans, S. / He, M. / He, W. / Heeger, K. M. / Heinz, T. / Heng, Y. K. / Herrera, R. / Higuera, A. / Hong, D. J. / Hor, Y. K. / Hou, S. J. / Hsiung, Y. B. / Hu, B. Z. / Hu, H. / Hu, J. R. / Hu, J. / Hu, S. Y. / Hu, T. / Hu, Z. J. / Huang, C. H. / Huang, G. H. / Huang, H. X. / Huang, Q. H. / Huang, W. H. / Huang, X. T. / Huang, Y. B. / Huber, P. / Hui, J. Q. / Huo, L. / Huo, W. J. / Huss, C. / Hussain, S. / Insolia, A. / Ioannisian, A. / Ioannisyan, D. / Isocrate, R. / Jaffe, D. E. / Jen, K. L. / Ji, X. L. / Ji, X. P. / Ji, X. Z. / Jia, H. H. / Jia, J. J. / Jian, S. Y. / Jiang, D. / Jiang, X. S. / Jin, R. Y. / Jing, X. P. / Johnson, R. A. / Jollet, C. / Jones, D. / Joutsenvaara, J. / Jungthawan, S. / Kalousis, L. / Kampmann, P. / Kang, L. / Karagounis, M. / Kazarian, N. / Kettell, S. H. / Khan, A. / Khan, W. / Khosonthongkee, K. / Kinz, P. / Kohn, S. / Korablev, D. / Kouzakov, K. / Kramer, M. / Krasnoperov, A. / Krokhaleva, S. / Krumshteyn, Z. / Kruth, A. / Kutovskiy, N. / Kuusiniemi, P. / Lachacinski, B. / Lachenmaier, T. / Langford, T. J. / Lee, J. / Lee, J. H. C. / Lefevre, F. / Lei, L. / Lei, R. / Leitner, R. / Leung, J. / Li, C. / Li, D. M. / Li, F. / Li, H. T. / Li, H. L. / Li, J. / Li, J. J. / Li, J. Q. / Li, K. J. / Li, M. Z. / Li, N. / Li, Q. J. / Li, R. H. / Li, S. C. / Li, S. F. / Li, S. J. / Li, T. / Li, W. D. / Li, W. G. / Li, X. M. / Li, X. N. / Li, X. L. / Li, X. Q. / Li, Y. / Li, Y. F. / Li, Z. B. / Li, Z. Y. / Liang, H. / Liang, J. J. / Liebau, D. / Limphirat, A. / Limpijumnong, S. / Lin, C. J. / Lin, G. L. / Lin, S. X. / Lin, T. / Lin, Y. H. / Ling, J. J. / Link, J. M. / Lippi, I. / Littenberg, L. / Littlejohn, B. R. / Liu, F. / Liu, H. / Liu, H. B. / Liu, H. D. / Liu, H. J. / Liu, H. T. / Liu, J. C. / Liu, J. L. / Liu, M. / Liu, Q. / Liu, R. X. / Liu, S. Y. / Liu, S. B. / Liu, S. L. / Liu, X. W. / Liu, Y. / Lokhov, A. / Lombardi, P. / Loo, K. / Lorenz, S. / Lu, C. / Lu, H. Q. / Lu, J. B. / Lu, J. G. / Lu, S. X. / Lu, X. X. / Lubsandorzhiev, B. / Lubsandorzhiev, S. / Ludhova, L. / Luk, K. B. / Luo, F. J. / Luo, G. / Luo, P. W. / Luo, S. / Luo, W. M. / Lyashuk, V. / Ma, Q. M. / Ma, S. / Ma, X. B. / Ma, X. Y. / Ma, Y. Q. / Malyshkin, Y. / Mantovani, F. / Mao, Y. J. / Mari, S. M. / Marini, F. / Marium, S. / Marshall, C. / Martellini, C. / Martin-Chassard, G. / Caicedo, D. A. Martinez / Martini, A. / Martino, J. / Mayilyan, D. / McDonald, K. T. / McKeown, R. D. / Müller, A. / Meng, G. / Meng, Y. / Meregaglia, A. / Meroni, E. / Meyhöfer, D. / Mezzetto, M. / Miller, J. / Miramonti, L. / Monforte, S. / Montini, P. / Montuschi, M. / Morozov, N. / Muralidharan, P. / Napolitano, J. / Nastasi, M. / Naumov, D. V. / Naumova, E. / Nemchenok, I. / Nikolaev, A. / Ning, F. P. / Ning, Z. / Nunokawa, H. / Oberauer, L. / Ochoa-Ricoux, J. P. / Olshevskiy, A. / Ortica, F. / Pan, H. R. / Paoloni, A. / Park, J. / Parkalian, N. / Parmeggiano, S. / Patton, S. / Payupol, T. / Pec, V. / Pedretti, D. / Pei, Y. T. / Pelliccia, N. / Peng, A. G. / Peng, H. P. / Peng, J. C. / Perrot, F. / Petitjean, P. A. / Rico, L. F. Pineres / Popov, A. / Poussot, P. / Pratumwan, W. / Previtali, E. / Pun, C. S. J. / Qi, F. Z. / Qi, M. / Qian, S. / Qian, X. / Qian, X. H. / Qiao, H. / Qin, Z. H. / Qiu, S. K. / Rajput, M. / Ranucci, G. / Raper, N. / Re, A. / Rebber, H. / Rebii, A. / Ren, B. / Ren, J. / Reveco, C. M. / Rezinko, T. / Ricci, B. / Robens, M. / Roche, M. / Rodphai, N. / Rohwer, L. / Romani, A. / Rosero, R. / Roskovec, B. / Roth, C. / Ruan, X. C. / Ruan, X. D. / Rujirawat, S. / Rybnikov, A. / Sadovsky, A. / Saggese, P. / Salamanna, G. / Sangka, A. / Sanguansak, N. / Sawangwit, U. / Sawatzki, J. / Sawy, F. / Schever, M. / Schuler, J. / Schwab, C. / Schweizer, K. / Selivanov, D. / Selyunin, A. / Serafini, A. / Settanta, G. / Settimo, M. / Shahzad, M. / Shi, G. / Shi, J. Y. / Shi, Y. J. / Shutov, V. / Sidorenkov, A. / Simkovic, F. / Sirignano, C. / Siripak, J. / Sisti, M. / Slupecki, M. / Smirnov, M. / Smirnov, O. / Sogo-Bezerra, T. / Songwadhana, J. / Soonthornthum, B. / Sotnikov, A. / Sramek, O. / Sreethawong, W. / Stahl, A. / Stanco, L. / Stankevich, K. / Stefanik, D. / Steiger, H. / Steiner, H. / Steinmann, J. / Stender, M. / Strati, V. / Studenikin, A. / Sun, G. X. / Sun, L. T. / Sun, J. L. / Sun, S. F. / Sun, X. L. / Sun, Y. J. / Sun, Y. Z. / Suwonjandee, N. / Szelezniak, M. / Tang, J. / Tang, Q. / Tang, X. / Tietzsch, A. / Tkachev, I. / Tmej, T. / Treskov, K. / Troni, G. / Trzaska, W. / Tse, W. -H. / Tull, C. E. / Tuve, C. / van Waasen, S. / Boom, J. Vanden / Vassilopoulos, N. / Vedin, V. / Verde, G. / Vialkov, M. / Viaud, B. / Viren, B. / Volpe, C. / Vorobel, V. / Votano, L. / Walker, P. / Wang, C. / Wang, C. H. / Wang, E. / Wang, G. L. / Wang, J. / Wang, K. Y. / Wang, L. / Wang, M. F. / Wang, M. / Wang, N. Y. / Wang, R. G. / Wang, S. G. / Wang, W. / Wang, W. S. / Wang, X. / Wang, X. Y. / Wang, Y. / Wang, Y. F. / Wang, Y. G. / Wang, Y. M. / Wang, Y. Q. / Wang, Z. / Wang, Z. M. / Wang, Z. Y. / Watcharangkool, A. / Wei, H. Y. / Wei, L. H. / Wei, W. / Wei, Y. D. / Wen, L. J. / Whisnant, K. / White, C. G. / Wiebusch, C. / Wong, S. C. F. / Wong, H. L. H. / Wonsak, B. / Worcester, E. / Wu, C. H. / Wu, D. R. / Wu, F. L. / Wu, Q. / Wu, W. J. / Wu, Z. / Wurm, M. / Wurtz, J. / Wysotzki, C. / Xi, Y. F. / Xia, D. M. / Xie, Y. G. / Xie, Z. Q. / Xing, Z. Z. / Xu, D. L. / Xu, F. R. / Xu, H. K. / Xu, J. L. / Xu, J. / Xu, M. H. / Xu, T. / Xu, Y. / Xue, T. / Yan, B. J. / Yan, X. B. / Yan, Y. P. / Yang, A. B. / Yang, C. G. / Yang, H. / Yang, J. / Yang, L. / Yang, X. Y. / Yang, Y. F. / Yang, Y. Z. / Yao, H. F. / Yasin, Z. / Ye, J. X. / Ye, M. / Yegin, U. / Yeh, M. / Yermia, F. / Yi, P. H. / You, Z. Y. / Young, B. L. / Yu, B. X. / Yu, C. X. / Yu, C. Y. / Yu, H. Z. / Yu, M. / Yu, X. H. / Yu, Z. Y. / Yuan, C. Z. / Yuan, Y. / Yuan, Z. X. / Yuan, Z. Y. / Yue, B. B. / Zafar, N. / Zambanini, A. / Zeng, P. / Zeng, S. / Zeng, T. X. / Zeng, Y. D. / Zhan, L. / Zhang, C. / Zhang, F. Y. / Zhang, G. Q. / Zhang, H. H. / Zhang, H. Q. / Zhang, J. / Zhang, J. B. / Zhang, J. W. / Zhang, P. / Zhang, Q. M. / Zhang, T. / Zhang, X. M. / Zhang, X. T. / Zhang, Y. / Zhang, Y. H. / Zhang, Y. M. / Zhang, Y. P. / Zhang, Y. X. / Zhang, Y. Y. / Zhang, Z. J. / Zhang, Z. P. / Zhang, Z. Y. / Zhao, F. Y. / Zhao, J. / Zhao, R. / Zhao, S. J. / Zhao, T. C. / Zheng, D. Q. / Zheng, H. / Zheng, M. S. / Zheng, Y. H. / Zhong, W. R. / Zhou, J. / Zhou, L. / Zhou, N. / Zhou, S. / Zhou, X. / Zhu, J. / Zhu, K. J. / Zhuang, H. L. / Zong, L. / Zou, J. H.

    2020  

    Abstract: To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by ...

    Abstract To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were increased in 12 steps from 0.5 g/L and <0.01 mg/L to 4 g/L and 13 mg/L, respectively. The numbers of total detected photoelectrons suggest that, with the optically purified solvent, the bis-MSB concentration does not need to be more than 4 mg/L. To bridge the one order of magnitude in the detector size difference between Daya Bay and JUNO, the Daya Bay data were used to tune the parameters of a newly developed optical model. Then, the model and tuned parameters were used in the JUNO simulation. This enabled to determine the optimal composition for the JUNO LS: purified solvent LAB with 2.5 g/L PPO, and 1 to 4 mg/L bis-MSB.

    Comment: 13 pages, 8 figures
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 660
    Publishing date 2020-07-01
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Book ; Online: TAO Conceptual Design Report

    JUNO Collaboration / Abusleme, Angel / Adam, Thomas / Ahmad, Shakeel / Aiello, Sebastiano / Akram, Muhammad / Ali, Nawab / An, Fengpeng / An, Guangpeng / An, Qi / Andronico, Giuseppe / Anfimov, Nikolay / Antonelli, Vito / Antoshkina, Tatiana / Asavapibhop, Burin / de André, João Pedro Athayde Marcondes / Auguste, Didier / Babic, Andrej / Baldini, Wander /
    Barresi, Andrea / Baussan, Eric / Bellato, Marco / Bergnoli, Antonio / Bernieri, Enrico / Biare, David / Birkenfeld, Thilo / Blin, Sylvie / Blum, David / Blyth, Simon / Bolshakova, Anastasia / Bongrand, Mathieu / Bordereau, Clément / Breton, Dominique / Brigatti, Augusto / Brugnera, Riccardo / Budano, Antonio / Buscemi, Mario / Busto, Jose / Butorov, Ilya / Cabrera, Anatael / Cai, Hao / Cai, Xiao / Cai, Yanke / Cai, Zhiyan / Cammi, Antonio / Campeny, Agustin / Cao, Chuanya / Cao, Guofu / Cao, Jun / Caruso, Rossella / Cerna, Cédric / Chakaberia, Irakli / Chang, Jinfan / Chang, Yun / Chen, Pingping / Chen, Po-An / Chen, Shaomin / Chen, Shenjian / Chen, Xurong / Chen, Yi-Wen / Chen, Yixue / Chen, Yu / Chen, Zhang / Cheng, Jie / Cheng, Yaping / Chepurnov, Alexander / Chiesa, Davide / Chimenti, Pietro / Chukanov, Artem / Chuvashova, Anna / Claverie, Gérard / Clementi, Catia / Clerbaux, Barbara / Di Lorenzo, Selma Conforti / Corti, Daniele / Costa, Salvatore / Corso, Flavio Dal / De La 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    A Precision Measurement of the Reactor Antineutrino Spectrum with Sub-percent Energy Resolution

    2020  

    Abstract: The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino Observatory (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from a core of the Taishan Nuclear ...

    Abstract The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino Observatory (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from a core of the Taishan Nuclear Power Plant. The reactor antineutrino spectrum will be measured with sub-percent energy resolution, to provide a reference spectrum for future reactor neutrino experiments, and to provide a benchmark measurement to test nuclear databases. A spherical acrylic vessel containing 2.8 ton gadolinium-doped liquid scintillator will be viewed by 10 m^2 Silicon Photomultipliers (SiPMs) of >50% photon detection efficiency with almost full coverage. The photoelectron yield is about 4500 per MeV, an order higher than any existing large-scale liquid scintillator detectors. The detector operates at -50 degree C to lower the dark noise of SiPMs to an acceptable level. The detector will measure about 2000 reactor antineutrinos per day, and is designed to be well shielded from cosmogenic backgrounds and ambient radioactivities to have about 10% background-to-signal ratio. The experiment is expected to start operation in 2022.

    Comment: 134 pages, 114 figures
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment ; Nuclear Experiment
    Subject code 660
    Publishing date 2020-05-18
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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