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Agnes P, Albuquerque IFM, Alexander T, Alton AK, Ave M, Back HO, Batignani G, Biery K, Bocci V, Bonivento WM, Bottino B, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Campos MD, Canci N, Caravati M, Cargioli N, Cariello M, Carlini M, Cataudella V, Cavalcante P, Cavuoti S, Chashin S, Chepurnov A, Cicalò C, Covone G, D'Angelo D, Davini S, De Candia A, De Cecco S, De Filippis G, De Rosa G, Derbin AV, Devoto A, D'Incecco M, Dionisi C, Dordei F, Downing M, D'Urso D, Fairbairn M, Fiorillo G, Franco D, Gabriele F, Galbiati C, Ghiano C, Giganti C, Giovanetti GK, Goretti AM, Grilli di Cortona G, Grobov A, Gromov M, Guan M, Gulino M, Hackett BR, Herner K, Hessel T, Hosseini B, Hubaut F, Hungerford EV, Ianni A, Ippolito V, Keeter K, Kendziora CL, Kimura M, Kochanek I, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lissia M, Longo G, Lychagina O, Machulin IN, Mapelli LP, Mari SM, Maricic J, Messina A, Milincic R, Monroe J, Morrocchi M, Mougeot X, Muratova VN, Musico P, Nozdrina AO, Oleinik A, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pelczar K, Pelliccia N, Piacentini S, Pocar A, Poehlmann DM, Pordes S, Poudel SS, Pralavorio P, Price DD, Ragusa F, Razeti M, Razeto A, Renshaw AL, Rescigno M, Rode J, Romani A, Sablone D, Samoylov O, Sandford E, Sands W, Sanfilippo S, Savarese C, Schlitzer B, Semenov DA, Shchagin A, Sheshukov A, Skorokhvatov MD, Smirnov O, Sotnikov A, Stracka S, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Unzhakov EV, Vishneva A, Vogelaar RB, Wada M, Wang H, Wang Y, Westerdale S, Wojcik MM, Xiao X, Yang C, Zuzel G. Search for Dark-Matter-Nucleon Interactions via Migdal Effect with DarkSide-50. Phys Rev Lett 2023; 130:101001. [PMID: 36962014 DOI: 10.1103/physrevlett.130.101001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/23/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
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}.
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Affiliation(s)
- P Agnes
- Department of Physics, Royal Holloway University of London, Egham TW20 0EX, United Kingdom
| | - I F M Albuquerque
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - T Alexander
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - A K Alton
- Physics Department, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - M Ave
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - H O Back
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - G Batignani
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - K Biery
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Bocci
- INFN Sezione di Roma, Roma 00185, Italy
| | | | - B Bottino
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - S Bussino
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - M Cadeddu
- INFN Cagliari, Cagliari 09042, Italy
| | - M Cadoni
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - F Calaprice
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - M D Campos
- Physics, Kings College London, Strand, London WC2R 2LS, United Kingdom
| | - N Canci
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | | | | | - M Carlini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - V Cataudella
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - P Cavalcante
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - S Cavuoti
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - S Chashin
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - A Chepurnov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - C Cicalò
- INFN Cagliari, Cagliari 09042, Italy
| | - G Covone
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D D'Angelo
- Physics Department, Università degli Studi di Milano, Milano 20133, Italy
- INFN Milano, Milano 20133, Italy
| | - S Davini
- INFN Genova, Genova 16146, Italy
| | - A De Candia
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - S De Cecco
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - G De Filippis
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - G De Rosa
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - A V Derbin
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Devoto
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - M D'Incecco
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - C Dionisi
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - F Dordei
- INFN Cagliari, Cagliari 09042, Italy
| | - M Downing
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D D'Urso
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - M Fairbairn
- Physics, Kings College London, Strand, London WC2R 2LS, United Kingdom
| | - G Fiorillo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D Franco
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | | | - C Galbiati
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - C Ghiano
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - C Giganti
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - G K Giovanetti
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - A M Goretti
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Grobov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - M Gromov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M Guan
- Institute of High Energy Physics, Beijing 100049, China
| | - M Gulino
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Engineering and Architecture Faculty, Università di Enna Kore, Enna 94100, Italy
| | - B R Hackett
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - K Herner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Hessel
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | | | - F Hubaut
- Centre de Physique des Particules de Marseille, Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France
| | - E V Hungerford
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - An Ianni
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - K Keeter
- School of Natural Sciences, Black Hills State University, Spearfish, South Dakota 57799, USA
| | - C L Kendziora
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Kimura
- AstroCeNT, Nicolaus Copernicus Astronomical Center, 00-614 Warsaw, Poland
| | - I Kochanek
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - D Korablev
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - G Korga
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - A Kubankin
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - M Kuss
- INFN Pisa, Pisa 56127, Italy
| | - M La Commara
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - M Lai
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - X Li
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M Lissia
- INFN Cagliari, Cagliari 09042, Italy
| | - G Longo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - O Lychagina
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - I N Machulin
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - L P Mapelli
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - S M Mari
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - J Maricic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - A Messina
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - R Milincic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - J Monroe
- Department of Physics, Royal Holloway University of London, Egham TW20 0EX, United Kingdom
| | - M Morrocchi
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - X Mougeot
- Université Paris-Saclay, CEA, List, Laboratoire National Henri Becquerel (LNE-LNHB), F-91120 Palaiseau, France
| | - V N Muratova
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - P Musico
- INFN Genova, Genova 16146, Italy
| | - A O Nozdrina
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A Oleinik
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - F Ortica
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - L Pagani
- Department of Physics, University of California, Davis, California 95616, USA
| | - M Pallavicini
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - L Pandola
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - E Pantic
- Department of Physics, University of California, Davis, California 95616, USA
| | - E Paoloni
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - K Pelczar
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - N Pelliccia
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | | | - A Pocar
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D M Poehlmann
- Department of Physics, University of California, Davis, California 95616, USA
| | - S Pordes
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S S Poudel
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - P Pralavorio
- Centre de Physique des Particules de Marseille, Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France
| | - D D Price
- The University of Manchester, Manchester M13 9PL, United Kingdom
| | - F Ragusa
- Physics Department, Università degli Studi di Milano, Milano 20133, Italy
- INFN Milano, Milano 20133, Italy
| | - M Razeti
- INFN Cagliari, Cagliari 09042, Italy
| | - A Razeto
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - A L Renshaw
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | | | - J Rode
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - A Romani
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - D Sablone
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - O Samoylov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - E Sandford
- The University of Manchester, Manchester M13 9PL, United Kingdom
| | - W Sands
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - S Sanfilippo
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - C Savarese
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - B Schlitzer
- Department of Physics, University of California, Davis, California 95616, USA
| | - D A Semenov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Shchagin
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - A Sheshukov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M D Skorokhvatov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - O Smirnov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - A Sotnikov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | | | - Y Suvorov
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
| | - R Tartaglia
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Tonazzo
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | - E V Unzhakov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Vishneva
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | | | - M Wada
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
- AstroCeNT, Nicolaus Copernicus Astronomical Center, 00-614 Warsaw, Poland
| | - H Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - Y Wang
- Institute of High Energy Physics, Beijing 100049, China
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - S Westerdale
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M M Wojcik
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - X Xiao
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - C Yang
- Institute of High Energy Physics, Beijing 100049, China
| | - G Zuzel
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
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2
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Agnes P, Albuquerque IFM, Alexander T, Alton AK, Ave M, Back HO, Batignani G, Biery K, Bocci V, Bonivento WM, Bottino B, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Campos MD, Canci N, Caravati M, Cargioli N, Cariello M, Carlini M, Cataudella V, Cavalcante P, Cavuoti S, Chashin S, Chepurnov A, Cicalò C, Covone G, D'Angelo D, Davini S, De Candia A, De Cecco S, De Filippis G, De Rosa G, Derbin AV, Devoto A, D'Incecco M, Dionisi C, Dordei F, Downing M, D'Urso D, Fiorillo G, Franco D, Gabriele F, Galbiati C, Ghiano C, Giganti C, Giovanetti GK, Goretti AM, Grilli di Cortona G, Grobov A, Gromov M, Guan M, Gulino M, Hackett BR, Herner K, Hessel T, Hosseini B, Hubaut F, Hungerford EV, Ianni A, Ippolito V, Keeter K, Kendziora CL, Kimura M, Kochanek I, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lissia M, Longo G, Lychagina O, Machulin IN, Mapelli LP, Mari SM, Maricic J, Messina A, Milincic R, Monroe J, Morrocchi M, Mougeot X, Muratova VN, Musico P, Nozdrina AO, Oleinik A, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pelczar K, Pelliccia N, Piacentini S, Pocar A, Poehlmann DM, Pordes S, Poudel SS, Pralavorio P, Price DD, Ragusa F, Razeti M, Razeto A, Renshaw AL, Rescigno M, Rode J, Romani A, Sablone D, Samoylov O, Sands W, Sanfilippo S, Sandford E, Savarese C, Schlitzer B, Semenov DA, Shchagin A, Sheshukov A, Skorokhvatov MD, Smirnov O, Sotnikov A, Stracka S, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Unzhakov EV, Vishneva A, Vogelaar RB, Wada M, Wang H, Wang Y, Westerdale S, Wojcik MM, Xiao X, Yang C, Zuzel G. Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50. Phys Rev Lett 2023; 130:101002. [PMID: 36962032 DOI: 10.1103/physrevlett.130.101002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
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.
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Affiliation(s)
- P Agnes
- Department of Physics, Royal Holloway University of London, Egham TW20 0EX, United Kingdom
| | - I F M Albuquerque
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - T Alexander
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - A K Alton
- Physics Department, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - M Ave
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - H O Back
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - G Batignani
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - K Biery
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Bocci
- INFN Sezione di Roma, Roma 00185, Italy
| | | | - B Bottino
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - S Bussino
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - M Cadeddu
- INFN Cagliari, Cagliari 09042, Italy
| | - M Cadoni
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - F Calaprice
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - M D Campos
- Physics, Kings College London, Strand, London WC2R 2LS, United Kingdom
| | - N Canci
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | | | | | - M Carlini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - V Cataudella
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - P Cavalcante
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - S Cavuoti
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - S Chashin
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - A Chepurnov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - C Cicalò
- INFN Cagliari, Cagliari 09042, Italy
| | - G Covone
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D D'Angelo
- Physics Department, Università degli Studi di Milano, Milano 20133, Italy
- INFN Milano, Milano 20133, Italy
| | - S Davini
- INFN Genova, Genova 16146, Italy
| | - A De Candia
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - S De Cecco
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - G De Filippis
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - G De Rosa
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - A V Derbin
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Devoto
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - M D'Incecco
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - C Dionisi
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - F Dordei
- INFN Cagliari, Cagliari 09042, Italy
| | - M Downing
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D D'Urso
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - G Fiorillo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D Franco
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | | | - C Galbiati
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - C Ghiano
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - C Giganti
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - G K Giovanetti
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - A M Goretti
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Grobov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - M Gromov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M Guan
- Institute of High Energy Physics, Beijing 100049, China
| | - M Gulino
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Engineering and Architecture Faculty, Università di Enna Kore, Enna 94100, Italy
| | - B R Hackett
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - K Herner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Hessel
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | | | - F Hubaut
- Centre de Physique des Particules de Marseille, Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France
| | - E V Hungerford
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - An Ianni
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - K Keeter
- School of Natural Sciences, Black Hills State University, Spearfish, South Dakota 57799, USA
| | - C L Kendziora
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Kimura
- AstroCeNT, Nicolaus Copernicus Astronomical Center, 00-614 Warsaw, Poland
| | - I Kochanek
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - D Korablev
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - G Korga
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - A Kubankin
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - M Kuss
- INFN Pisa, Pisa 56127, Italy
| | - M La Commara
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - M Lai
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - X Li
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M Lissia
- INFN Cagliari, Cagliari 09042, Italy
| | - G Longo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - O Lychagina
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - I N Machulin
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - L P Mapelli
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - S M Mari
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - J Maricic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - A Messina
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - R Milincic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - J Monroe
- Department of Physics, Royal Holloway University of London, Egham TW20 0EX, United Kingdom
| | - M Morrocchi
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - X Mougeot
- Université Paris-Saclay, CEA, List, Laboratoire National Henri Becquerel (LNE-LNHB), F-91120 Palaiseau, France
| | - V N Muratova
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - P Musico
- INFN Genova, Genova 16146, Italy
| | - A O Nozdrina
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A Oleinik
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - F Ortica
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - L Pagani
- Department of Physics, University of California, Davis, California 95616, USA
| | - M Pallavicini
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - L Pandola
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - E Pantic
- Department of Physics, University of California, Davis, California 95616, USA
| | - E Paoloni
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - K Pelczar
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - N Pelliccia
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | | | - A Pocar
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D M Poehlmann
- Department of Physics, University of California, Davis, California 95616, USA
| | - S Pordes
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S S Poudel
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - P Pralavorio
- Centre de Physique des Particules de Marseille, Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France
| | - D D Price
- The University of Manchester, Manchester M13 9PL, United Kingdom
| | - F Ragusa
- Physics Department, Università degli Studi di Milano, Milano 20133, Italy
- INFN Milano, Milano 20133, Italy
| | - M Razeti
- INFN Cagliari, Cagliari 09042, Italy
| | - A Razeto
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - A L Renshaw
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | | | - J Rode
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - A Romani
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - D Sablone
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - O Samoylov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - W Sands
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - S Sanfilippo
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - E Sandford
- The University of Manchester, Manchester M13 9PL, United Kingdom
| | - C Savarese
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - B Schlitzer
- Department of Physics, University of California, Davis, California 95616, USA
| | - D A Semenov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Shchagin
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - A Sheshukov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M D Skorokhvatov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - O Smirnov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - A Sotnikov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | | | - Y Suvorov
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
| | - R Tartaglia
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Tonazzo
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | - E V Unzhakov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Vishneva
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | | | - M Wada
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
- AstroCeNT, Nicolaus Copernicus Astronomical Center, 00-614 Warsaw, Poland
| | - H Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - Y Wang
- Institute of High Energy Physics, Beijing 100049, China
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - S Westerdale
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M M Wojcik
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - X Xiao
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - C Yang
- Institute of High Energy Physics, Beijing 100049, China
| | - G Zuzel
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
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Adhikari P, Ajaj R, Auty D, Bina C, Bonivento W, Boulay M, Cadeddu M, Cai B, Cárdenas-Montes M, Cavuoti S, Chen Y, Cleveland B, Corning J, Daugherty S, DelGobbo P, Di Stefano P, Doria L, Dunford M, Erlandson A, Farahani S, Fatemighomi N, Fiorillo G, Gallacher D, Garcés E, García Abia P, Garg S, Giampa P, Goeldi D, Gorel P, Graham K, Grobov A, Hallin A, Hamstra M, Hugues T, Ilyasov A, Joy A, Jigmeddorj B, Jillings C, Kamaev O, Kaur G, Kemp A, Kochanek I, Kuźniak M, Lai M, Langrock S, Lehnert B, Levashko N, Li X, Litvinov O, Lock J, Longo G, Machulin I, McDonald A, McElroy T, McLaughlin J, Mielnichuk C, Monroe J, Oliviéro G, Pal S, Peeters S, Pesudo V, Piro MC, Pollmann T, Rand E, Rethmeier C, Retière F, Rodríguez-García I, Roszkowski L, Sanchez García E, Sánchez-Pastor T, Santorelli R, Sinclair D, Skensved P, Smith B, Smith N, Sonley T, Stainforth R, Stringer M, Sur B, Vázquez-Jáuregui E, Viel S, Vincent A, Walding J, Waqar M, Ward M, Westerdale S, Willis J, Zuñiga-Reyes A. Erratum: Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector [Phys. Rev. D
102
, 082001 (2020)]. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.105.029901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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4
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Adhikari P, Ajaj R, Alpízar-Venegas M, Auty DJ, Benmansour H, Bina CE, Bonivento W, Boulay MG, Cadeddu M, Cai B, Cárdenas-Montes M, Cavuoti S, Chen Y, Cleveland BT, Corning JM, Daugherty S, DelGobbo P, Di Stefano P, Doria L, Dunford M, Ellingwood E, Erlandson A, Farahani SS, Fatemighomi N, Fiorillo G, Gallacher D, García Abia P, Garg S, Giampa P, Goeldi D, Gorel P, Graham K, Grobov A, Hallin AL, Hamstra M, Hugues T, Ilyasov A, Joy A, Jigmeddorj B, Jillings CJ, Kamaev O, Kaur G, Kemp A, Kochanek I, Kuźniak M, Lai M, Langrock S, Lehnert B, Leonhardt A, Levashko N, Li X, Lissia M, Litvinov O, Lock J, Longo G, Machulin I, McDonald AB, McElroy T, McLaughlin JB, Mielnichuk C, Mirasola L, Monroe J, Oliviéro G, Pal S, Peeters SJM, Perry M, Pesudo V, Picciau E, Piro MC, Pollmann TR, Raj N, Rand ET, Rethmeier C, Retière F, Rodríguez-García I, Roszkowski L, Ruhland JB, Sanchez García E, Sánchez-Pastor T, Santorelli R, Seth S, Sinclair D, Skensved P, Smith B, Smith NJT, Sonley T, Stainforth R, Stringer M, Sur B, Vázquez-Jáuregui E, Viel S, Walding J, Waqar M, Ward M, Westerdale S, Willis J, Zuñiga-Reyes A. First Direct Detection Constraints on Planck-Scale Mass Dark Matter with Multiple-Scatter Signatures Using the DEAP-3600 Detector. Phys Rev Lett 2022; 128:011801. [PMID: 35061499 DOI: 10.1103/physrevlett.128.011801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/15/2021] [Accepted: 11/16/2021] [Indexed: 06/14/2023]
Abstract
Dark matter with Planck-scale mass (≃10^{19} GeV/c^{2}) arises in well-motivated theories and could be produced by several cosmological mechanisms. A search for multiscatter signals from supermassive dark matter was performed with a blind analysis of data collected over a 813 d live time with DEAP-3600, a 3.3 t single-phase liquid argon-based detector at SNOLAB. No candidate signals were observed, leading to the first direct detection constraints on Planck-scale mass dark matter. Leading limits constrain dark matter masses between 8.3×10^{6} and 1.2×10^{19} GeV/c^{2}, and ^{40}Ar-scattering cross sections between 1.0×10^{-23} and 2.4×10^{-18} cm^{2}. These results are interpreted as constraints on composite dark matter models with two different nucleon-to-nuclear cross section scalings.
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Affiliation(s)
- P Adhikari
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - R Ajaj
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - M Alpízar-Venegas
- Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, México D.F. 01000, México
| | - D J Auty
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
| | - H Benmansour
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - C E Bina
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | | | - M G Boulay
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - M Cadeddu
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
- INFN Cagliari, Cagliari 09042, Italy
| | - B Cai
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - M Cárdenas-Montes
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - S Cavuoti
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- Astronomical Observatory of Capodimonte, Salita Moiariello 16, I-80131 Napoli, Italy
- INFN Napoli, Napoli 80126, Italy
| | - Y Chen
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
| | - B T Cleveland
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
- SNOLAB, Lively, Ontario, P3Y 1N2, Canada
| | - J M Corning
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - S Daugherty
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
| | - P DelGobbo
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - P Di Stefano
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - L Doria
- PRISMA+, Cluster of Excellence and Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
| | - M Dunford
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - E Ellingwood
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - A Erlandson
- Canadian Nuclear Laboratories, Chalk River, Ontario, K0J 1J0, Canada
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - S S Farahani
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
| | - N Fatemighomi
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
- SNOLAB, Lively, Ontario, P3Y 1N2, Canada
| | - G Fiorillo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D Gallacher
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - P García Abia
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - S Garg
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - P Giampa
- TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
| | - D Goeldi
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - P Gorel
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
- SNOLAB, Lively, Ontario, P3Y 1N2, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - K Graham
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - A Grobov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A L Hallin
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
| | - M Hamstra
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - T Hugues
- AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Rektorska 4, 00-614 Warsaw, Poland
| | - A Ilyasov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A Joy
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - B Jigmeddorj
- Canadian Nuclear Laboratories, Chalk River, Ontario, K0J 1J0, Canada
| | - C J Jillings
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
- SNOLAB, Lively, Ontario, P3Y 1N2, Canada
| | - O Kamaev
- Canadian Nuclear Laboratories, Chalk River, Ontario, K0J 1J0, Canada
| | - G Kaur
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - A Kemp
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - I Kochanek
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - M Kuźniak
- AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Rektorska 4, 00-614 Warsaw, Poland
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - M Lai
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
- INFN Cagliari, Cagliari 09042, Italy
| | - S Langrock
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - B Lehnert
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - A Leonhardt
- Department of Physics, Technische Universität München, 80333 Munich, Germany
| | - N Levashko
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - X Li
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M Lissia
- INFN Cagliari, Cagliari 09042, Italy
| | - O Litvinov
- TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
| | - J Lock
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - G Longo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - I Machulin
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A B McDonald
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - T McElroy
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
| | - J B McLaughlin
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
- TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
| | - C Mielnichuk
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
| | - L Mirasola
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - J Monroe
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - G Oliviéro
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - S Pal
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - S J M Peeters
- University of Sussex, Sussex House, Brighton, East Sussex BN1 9RH, United Kingdom
| | - M Perry
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - V Pesudo
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - E Picciau
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
- INFN Cagliari, Cagliari 09042, Italy
| | - M-C Piro
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - T R Pollmann
- Department of Physics, Technische Universität München, 80333 Munich, Germany
| | - N Raj
- TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
| | - E T Rand
- Canadian Nuclear Laboratories, Chalk River, Ontario, K0J 1J0, Canada
| | - C Rethmeier
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - F Retière
- TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
| | - I Rodríguez-García
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - L Roszkowski
- AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Rektorska 4, 00-614 Warsaw, Poland
- BP2, National Centre for Nuclear Research, ul. Pasteura 7, 02-093 Warsaw, Poland
| | - J B Ruhland
- Department of Physics, Technische Universität München, 80333 Munich, Germany
| | - E Sanchez García
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - T Sánchez-Pastor
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - R Santorelli
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - S Seth
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - D Sinclair
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - P Skensved
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - B Smith
- TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
| | - N J T Smith
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
- SNOLAB, Lively, Ontario, P3Y 1N2, Canada
| | - T Sonley
- SNOLAB, Lively, Ontario, P3Y 1N2, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - R Stainforth
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
| | - M Stringer
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - B Sur
- Canadian Nuclear Laboratories, Chalk River, Ontario, K0J 1J0, Canada
| | - E Vázquez-Jáuregui
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
- Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, México D.F. 01000, México
| | - S Viel
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - J Walding
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - M Waqar
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston ON K7L 3N6,Canada
| | - M Ward
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario, K7L 3N6, Canada
- SNOLAB, Lively, Ontario, P3Y 1N2, Canada
| | - S Westerdale
- Department of Physics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada
- INFN Cagliari, Cagliari 09042, Italy
| | - J Willis
- Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2R3, Canada
| | - A Zuñiga-Reyes
- Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, México D.F. 01000, México
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Adhikari P, Ajaj R, Alpízar-Venegas M, Amaudruz PA, Auty DJ, Batygov M, Beltran B, Benmansour H, Bina CE, Bonatt J, Bonivento W, Boulay MG, Broerman B, Bueno JF, Burghardt PM, Butcher A, Cadeddu M, Cai B, Cárdenas-Montes M, Cavuoti S, Chen M, Chen Y, Cleveland BT, Corning JM, Cranshaw D, Daugherty S, DelGobbo P, Dering K, DiGioseffo J, Di Stefano P, Doria L, Duncan FA, Dunford M, Ellingwood E, Erlandson A, Farahani SS, Fatemighomi N, Fiorillo G, Florian S, Flower T, Ford RJ, Gagnon R, Gallacher D, García Abia P, Garg S, Giampa P, Goeldi D, Golovko V, Gorel P, Graham K, Grant DR, Grobov A, Hallin AL, Hamstra M, Harvey PJ, Hearns C, Hugues T, Ilyasov A, Joy A, Jigmeddorj B, Jillings CJ, Kamaev O, Kaur G, Kemp A, Kochanek I, Kuźniak M, Lai M, Langrock S, Lehnert B, Leonhardt A, Levashko N, Li X, Lidgard J, Lindner T, Lissia M, Lock J, Longo G, Machulin I, McDonald AB, McElroy T, McGinn T, McLaughlin JB, Mehdiyev R, Mielnichuk C, Monroe J, Nadeau P, Nantais C, Ng C, Noble AJ, O’Dwyer E, Oliviéro G, Ouellet C, Pal S, Pasuthip P, Peeters SJM, Perry M, Pesudo V, Picciau E, Piro MC, Pollmann TR, Rand ET, Rethmeier C, Retière F, Rodríguez-García I, Roszkowski L, Ruhland JB, Sánchez-García E, Santorelli R, Sinclair D, Skensved P, Smith B, Smith NJT, Sonley T, Soukup J, Stainforth R, Stone C, Strickland V, Stringer M, Sur B, Tang J, Vázquez-Jáuregui E, Viel S, Walding J, Waqar M, Ward M, Westerdale S, Willis J, Zuñiga-Reyes A. Pulse-shape discrimination against low-energy Ar-39 beta decays in liquid argon with 4.5 tonne-years of DEAP-3600 data. Eur Phys J C Part Fields 2021; 81:823. [PMID: 34720726 PMCID: PMC8550104 DOI: 10.1140/epjc/s10052-021-09514-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
The DEAP-3600 detector searches for the scintillation signal from dark matter particles scattering on a 3.3 tonne liquid argon target. The largest background comes from 39 Ar beta decays and is suppressed using pulse-shape discrimination (PSD). We use two types of PSD estimator: the prompt-fraction, which considers the fraction of the scintillation signal in a narrow and a wide time window around the event peak, and the log-likelihood-ratio, which compares the observed photon arrival times to a signal and a background model. We furthermore use two algorithms to determine the number of photons detected at a given time: (1) simply dividing the charge of each PMT pulse by the mean single-photoelectron charge, and (2) a likelihood analysis that considers the probability to detect a certain number of photons at a given time, based on a model for the scintillation pulse shape and for afterpulsing in the light detectors. The prompt-fraction performs approximately as well as the log-likelihood-ratio PSD algorithm if the photon detection times are not biased by detector effects. We explain this result using a model for the information carried by scintillation photons as a function of the time when they are detected.
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Affiliation(s)
- P. Adhikari
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - R. Ajaj
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - M. Alpízar-Venegas
- Instituto de Física, Universidad Nacional Autónoma de México, A. P. 20-364, 01000 Mexico, D.F. Mexico
| | | | - D. J. Auty
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - M. Batygov
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
| | - B. Beltran
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - H. Benmansour
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - C. E. Bina
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - J. Bonatt
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | | | - M. G. Boulay
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - B. Broerman
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - J. F. Bueno
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - P. M. Burghardt
- Department of Physics, Technische Universität München, 80333 Munich, Germany
| | - A. Butcher
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX UK
| | | | - B. Cai
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - M. Cárdenas-Montes
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, 28040 Madrid, Spain
| | - S. Cavuoti
- Physics Department, Università degli Studi “Federico II” di Napoli, 80126 Naples, Italy
- INFN Napoli, 80126 Naples, Italy
- INAF-Astronomical Observatory of Capodimonte, Salita Moiariello 16, 80131 Naples, Italy
| | - M. Chen
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - Y. Chen
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - B. T. Cleveland
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
- SNOLAB, Lively, ON P3Y 1M3 Canada
| | - J. M. Corning
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - D. Cranshaw
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - S. Daugherty
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
| | - P. DelGobbo
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - K. Dering
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - J. DiGioseffo
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - P. Di Stefano
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - L. Doria
- PRISMA+ Cluster of Excellence and Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
| | | | - M. Dunford
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - E. Ellingwood
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - A. Erlandson
- Canadian Nuclear Laboratories Ltd, Chalk River, ON K0J 1J0 Canada
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - S. S. Farahani
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | | | - G. Fiorillo
- Physics Department, Università degli Studi “Federico II” di Napoli, 80126 Naples, Italy
- INFN Napoli, 80126 Naples, Italy
| | - S. Florian
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - T. Flower
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - R. J. Ford
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
- SNOLAB, Lively, ON P3Y 1M3 Canada
| | - R. Gagnon
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - D. Gallacher
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - P. García Abia
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, 28040 Madrid, Spain
| | - S. Garg
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - P. Giampa
- TRIUMF, Vancouver, BC V6T 2A3 Canada
| | - D. Goeldi
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - V. Golovko
- Canadian Nuclear Laboratories Ltd, Chalk River, ON K0J 1J0 Canada
| | - P. Gorel
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
- SNOLAB, Lively, ON P3Y 1M3 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - K. Graham
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - D. R. Grant
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - A. Grobov
- National Research Centre Kurchatov Institute, Moscow, 123182 Russia
- National Research Nuclear University MEPhI, Moscow, 115409 Russia
| | - A. L. Hallin
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - M. Hamstra
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - P. J. Harvey
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - C. Hearns
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - T. Hugues
- AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Rektorska 4, 00-614 Warsaw, Poland
| | - A. Ilyasov
- National Research Centre Kurchatov Institute, Moscow, 123182 Russia
- National Research Nuclear University MEPhI, Moscow, 115409 Russia
| | - A. Joy
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - B. Jigmeddorj
- Canadian Nuclear Laboratories Ltd, Chalk River, ON K0J 1J0 Canada
| | - C. J. Jillings
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
- SNOLAB, Lively, ON P3Y 1M3 Canada
| | - O. Kamaev
- Canadian Nuclear Laboratories Ltd, Chalk River, ON K0J 1J0 Canada
| | - G. Kaur
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - A. Kemp
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX UK
| | - I. Kochanek
- INFN Laboratori Nazionali del Gran Sasso, 67100 Assergi, AQ Italy
| | - M. Kuźniak
- AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Rektorska 4, 00-614 Warsaw, Poland
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - M. Lai
- Physics Department, Università degli Studi di Cagliari, 09042 Cagliari, Italy
- INFN Cagliari, Cagliari, 09042 Italy
| | - S. Langrock
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - B. Lehnert
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Present Address: Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - A. Leonhardt
- Department of Physics, Technische Universität München, 80333 Munich, Germany
| | - N. Levashko
- National Research Centre Kurchatov Institute, Moscow, 123182 Russia
- National Research Nuclear University MEPhI, Moscow, 115409 Russia
| | - X. Li
- Physics Department, Princeton University, Princeton, NJ 08544 USA
| | - J. Lidgard
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | | | - M. Lissia
- INFN Cagliari, Cagliari, 09042 Italy
| | - J. Lock
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - G. Longo
- Physics Department, Università degli Studi “Federico II” di Napoli, 80126 Naples, Italy
- INFN Napoli, 80126 Naples, Italy
| | - I. Machulin
- National Research Centre Kurchatov Institute, Moscow, 123182 Russia
- National Research Nuclear University MEPhI, Moscow, 115409 Russia
| | - A. B. McDonald
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - T. McElroy
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - T. McGinn
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - J. B. McLaughlin
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX UK
- TRIUMF, Vancouver, BC V6T 2A3 Canada
| | - R. Mehdiyev
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - C. Mielnichuk
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - J. Monroe
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX UK
| | - P. Nadeau
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - C. Nantais
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - C. Ng
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - A. J. Noble
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - E. O’Dwyer
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - G. Oliviéro
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - C. Ouellet
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - S. Pal
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - P. Pasuthip
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - S. J. M. Peeters
- University of Sussex, Sussex House, Brighton, East Sussex BN1 9RH UK
| | - M. Perry
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - V. Pesudo
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, 28040 Madrid, Spain
| | - E. Picciau
- Physics Department, Università degli Studi di Cagliari, 09042 Cagliari, Italy
- INFN Cagliari, Cagliari, 09042 Italy
| | - M.-C. Piro
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - T. R. Pollmann
- Department of Physics, Technische Universität München, 80333 Munich, Germany
- Present Address: Nikhef and the University of Amsterdam, Science Park, 1098 XG Amsterdam, The Netherlands
| | - E. T. Rand
- Canadian Nuclear Laboratories Ltd, Chalk River, ON K0J 1J0 Canada
| | - C. Rethmeier
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | | | - I. Rodríguez-García
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, 28040 Madrid, Spain
| | - L. Roszkowski
- AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Rektorska 4, 00-614 Warsaw, Poland
- BP2, National Centre for Nuclear Research, ul. Pasteura 7, 02-093 Warsaw, Poland
| | - J. B. Ruhland
- Department of Physics, Technische Universität München, 80333 Munich, Germany
| | - E. Sánchez-García
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, 28040 Madrid, Spain
| | - R. Santorelli
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, 28040 Madrid, Spain
| | - D. Sinclair
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - P. Skensved
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - B. Smith
- TRIUMF, Vancouver, BC V6T 2A3 Canada
| | - N. J. T. Smith
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
- SNOLAB, Lively, ON P3Y 1M3 Canada
| | - T. Sonley
- SNOLAB, Lively, ON P3Y 1M3 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - J. Soukup
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - R. Stainforth
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - C. Stone
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - V. Strickland
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - M. Stringer
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - B. Sur
- Canadian Nuclear Laboratories Ltd, Chalk River, ON K0J 1J0 Canada
| | - J. Tang
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - E. Vázquez-Jáuregui
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 Canada
- Instituto de Física, Universidad Nacional Autónoma de México, A. P. 20-364, 01000 Mexico, D.F. Mexico
| | - S. Viel
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - J. Walding
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX UK
| | - M. Waqar
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - M. Ward
- Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - S. Westerdale
- Department of Physics, Carleton University, Ottawa, ON K1S 5B6 Canada
- INFN Cagliari, Cagliari, 09042 Italy
| | - J. Willis
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3 Canada
| | - A. Zuñiga-Reyes
- Instituto de Física, Universidad Nacional Autónoma de México, A. P. 20-364, 01000 Mexico, D.F. Mexico
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Aharmim B, Ahmed S, Anthony A, Barros N, Beier E, Bellerive A, Beltran B, Bergevin M, Biller S, Blucher E, Bonventre R, Boudjemline K, Boulay M, Cai B, Callaghan E, Caravaca J, Chan Y, Chauhan D, Chen M, Cleveland B, Cox G, Dai X, Deng H, Descamps F, Detwiler J, Doe P, Doucas G, Drouin PL, Dunford M, Elliott S, Evans H, Ewan G, Farine J, Fergani H, Fleurot F, Ford R, Formaggio J, Gagnon N, Gilje K, Goon J, Graham K, Guillian E, Habib S, Hahn R, Hallin A, Hallman E, Harvey P, Hazama R, Heintzelman W, Heise J, Helmer R, Hime A, Howard C, Huang M, Jagam P, Jamieson B, Jelley N, Jerkins M, Keeter K, Klein J, Kormos L, Kos M, Kraus C, Krauss C, Krüger A, Kutter T, Kyba C, Labe K, Land B, Lange R, LaTorre A, Law J, Lawson I, Lesko K, Leslie J, Levine I, Loach J, MacLellan R, Majerus S, Mak H, Maneira J, Martin R, Mastbaum A, McCauley N, McDonald A, McGee S, Miller M, Monreal B, Monroe J, Nickel B, Noble A, O’Keeffe H, Oblath N, Okada C, Ollerhead R, Orebi Gann G, Oser S, Ott R, Peeters S, Poon A, Prior G, Reitzner S, Rielage K, Robertson B, Robertson R, Schwendener M, Secrest J, Seibert S, Simard O, Sinclair D, Skensved P, Sonley T, Stonehill L, Tešić G, Tolich N, Tsui T, Van Berg R, VanDevender B, Virtue C, Wall B, Waller D, Wan Chan Tseung H, Wark D, Wendland J, West N, Wilkerson J, Wilson J, Winchester T, Wright A, Yeh M, Zhang F, Zuber K. Search for
hep
solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.102.062006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Aguilar-Arevalo AA, Brown BC, Bugel L, Cheng G, Conrad JM, Cooper RL, Dharmapalan R, Diaz A, Djurcic Z, Finley DA, Ford R, Garcia FG, Garvey GT, Grange J, Huang EC, Huelsnitz W, Ignarra C, Johnson RA, Karagiorgi G, Katori T, Kobilarcik T, Louis WC, Mariani C, Marsh W, Mills GB, Mirabal J, Monroe J, Moore CD, Mousseau J, Nienaber P, Nowak J, Osmanov B, Pavlovic Z, Perevalov D, Ray H, Roe BP, Russell AD, Shaevitz MH, Spitz J, Stancu I, Tayloe R, Thornton RT, Tzanov M, Van de Water RG, White DH, Wickremasinghe DA, Zimmerman ED. Significant Excess of Electronlike Events in the MiniBooNE Short-Baseline Neutrino Experiment. Phys Rev Lett 2018; 121:221801. [PMID: 30547637 DOI: 10.1103/physrevlett.121.221801] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/28/2018] [Indexed: 06/09/2023]
Abstract
The MiniBooNE experiment at Fermilab reports results from an analysis of ν_{e} appearance data from 12.84×10^{20} protons on target in neutrino mode, an increase of approximately a factor of 2 over previously reported results. A ν_{e} charged-current quasielastic event excess of 381.2±85.2 events (4.5σ) is observed in the energy range 200<E_{ν}^{QE}<1250 MeV. Combining these data with the ν[over ¯]_{e} appearance data from 11.27×10^{20} protons on target in antineutrino mode, a total ν_{e} plus ν[over ¯]_{e} charged-current quasielastic event excess of 460.5±99.0 events (4.7σ) is observed. If interpreted in a two-neutrino oscillation model, ν_{μ}→ν_{e}, the best oscillation fit to the excess has a probability of 21.1%, while the background-only fit has a χ^{2} probability of 6×10^{-7} relative to the best fit. The MiniBooNE data are consistent in energy and magnitude with the excess of events reported by the Liquid Scintillator Neutrino Detector (LSND), and the significance of the combined LSND and MiniBooNE excesses is 6.0σ. A two-neutrino oscillation interpretation of the data would require at least four neutrino types and indicate physics beyond the three neutrino paradigm. Although the data are fit with a two-neutrino oscillation model, other models may provide better fits to the data.
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Affiliation(s)
- A A Aguilar-Arevalo
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, CDMX 04510, Mexico
| | - B C Brown
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Bugel
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Cheng
- Columbia University, New York, New York 10027, USA
| | - J M Conrad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R L Cooper
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - R Dharmapalan
- University of Alabama, Tuscaloosa, Alabama 35487, USA
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Diaz
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D A Finley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Ford
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - F G Garcia
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G T Garvey
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Grange
- University of Florida, Gainesville, Florida 32611, USA
| | - E-C Huang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - W Huelsnitz
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Ignarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R A Johnson
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - G Karagiorgi
- Columbia University, New York, New York 10027, USA
| | - T Katori
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Queen Mary University of London, London E1 4NS, United Kingdom
| | - T Kobilarcik
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - W C Louis
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Mariani
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - W Marsh
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G B Mills
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Mirabal
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Monroe
- Royal Holloway, University of London, Egham TW20 0EX, United Kingdom
| | - C D Moore
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Mousseau
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - P Nienaber
- Saint Mary's University of Minnesota, Winona, Minnesota 55987, USA
| | - J Nowak
- Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - B Osmanov
- University of Florida, Gainesville, Florida 32611, USA
| | - Z Pavlovic
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Perevalov
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - H Ray
- University of Florida, Gainesville, Florida 32611, USA
| | - B P Roe
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - A D Russell
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M H Shaevitz
- Columbia University, New York, New York 10027, USA
| | - J Spitz
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - I Stancu
- University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - R Tayloe
- Indiana University, Bloomington, Indiana 47405, USA
| | - R T Thornton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M Tzanov
- University of Colorado, Boulder, Colorado 80309, USA
- Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - R G Van de Water
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D H White
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | | | - E D Zimmerman
- University of Colorado, Boulder, Colorado 80309, USA
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Amaudruz PA, Baldwin M, Batygov M, Beltran B, Bina CE, Bishop D, Bonatt J, Boorman G, Boulay MG, Broerman B, Bromwich T, Bueno JF, Burghardt PM, Butcher A, Cai B, Chan S, Chen M, Chouinard R, Cleveland BT, Cranshaw D, Dering K, DiGioseffo J, Dittmeier S, Duncan FA, Dunford M, Erlandson A, Fatemighomi N, Florian S, Flower A, Ford RJ, Gagnon R, Giampa P, Golovko VV, Gorel P, Gornea R, Grace E, Graham K, Gulyev E, Hakobyan R, Hall A, Hallin AL, Hamstra M, Harvey PJ, Hearns C, Jillings CJ, Kamaev O, Kemp A, Kuźniak M, Langrock S, La Zia F, Lehnert B, Lidgard JJ, Lim C, Lindner T, Linn Y, Liu S, Majewski P, Mathew R, McDonald AB, McElroy T, McGinn T, McLaughlin JB, Mead S, Mehdiyev R, Mielnichuk C, Monroe J, Muir A, Nadeau P, Nantais C, Ng C, Noble AJ, O'Dwyer E, Ohlmann C, Olchanski K, Olsen KS, Ouellet C, Pasuthip P, Peeters SJM, Pollmann TR, Rand ET, Rau W, Rethmeier C, Retière F, Seeburn N, Shaw B, Singhrao K, Skensved P, Smith B, Smith NJT, Sonley T, Soukup J, Stainforth R, Stone C, Strickland V, Sur B, Tang J, Taylor J, Veloce L, Vázquez-Jáuregui E, Walding J, Ward M, Westerdale S, Woolsey E, Zielinski J. First Results from the DEAP-3600 Dark Matter Search with Argon at SNOLAB. Phys Rev Lett 2018; 121:071801. [PMID: 30169081 DOI: 10.1103/physrevlett.121.071801] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 05/17/2018] [Indexed: 06/08/2023]
Abstract
This Letter reports the first results of a direct dark matter search with the DEAP-3600 single-phase liquid argon (LAr) detector. The experiment was performed 2 km underground at SNOLAB (Sudbury, Canada) utilizing a large target mass, with the LAr target contained in a spherical acrylic vessel of 3600 kg capacity. The LAr is viewed by an array of PMTs, which would register scintillation light produced by rare nuclear recoil signals induced by dark matter particle scattering. An analysis of 4.44 live days (fiducial exposure of 9.87 ton day) of data taken during the initial filling phase demonstrates the best electronic recoil rejection using pulse-shape discrimination in argon, with leakage <1.2×10^{-7} (90% C.L.) between 15 and 31 keV_{ee}. No candidate signal events are observed, which results in the leading limit on weakly interacting massive particle (WIMP)-nucleon spin-independent cross section on argon, <1.2×10^{-44} cm^{2} for a 100 GeV/c^{2} WIMP mass (90% C.L.).
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Affiliation(s)
- P-A Amaudruz
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - M Baldwin
- Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX, United Kingdom
| | - M Batygov
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
| | - B Beltran
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - C E Bina
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - D Bishop
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - J Bonatt
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - G Boorman
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - M G Boulay
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - B Broerman
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - T Bromwich
- University of Sussex, Sussex House, Brighton, East Sussex BN1 9RH, United Kingdom
| | - J F Bueno
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - P M Burghardt
- Department of Physics, Technische Universität München, 80333 Munich, Germany
| | - A Butcher
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - B Cai
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - S Chan
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - M Chen
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - R Chouinard
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - B T Cleveland
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
| | - D Cranshaw
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - K Dering
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - J DiGioseffo
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - S Dittmeier
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - F A Duncan
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
| | - M Dunford
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - A Erlandson
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Canadian Nuclear Laboratories Ltd, Chalk River, Ontario K0J 1J0, Canada
| | - N Fatemighomi
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - S Florian
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - A Flower
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - R J Ford
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
| | - R Gagnon
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - P Giampa
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - V V Golovko
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- Canadian Nuclear Laboratories Ltd, Chalk River, Ontario K0J 1J0, Canada
| | - P Gorel
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
| | - R Gornea
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - E Grace
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - K Graham
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - E Gulyev
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - R Hakobyan
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - A Hall
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - A L Hallin
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - M Hamstra
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - P J Harvey
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - C Hearns
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - C J Jillings
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
| | - O Kamaev
- Canadian Nuclear Laboratories Ltd, Chalk River, Ontario K0J 1J0, Canada
| | - A Kemp
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - M Kuźniak
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - S Langrock
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
| | - F La Zia
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - B Lehnert
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - J J Lidgard
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - C Lim
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - T Lindner
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - Y Linn
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - S Liu
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - P Majewski
- Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX, United Kingdom
| | - R Mathew
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - A B McDonald
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - T McElroy
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - T McGinn
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - J B McLaughlin
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - S Mead
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - R Mehdiyev
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - C Mielnichuk
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - J Monroe
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - A Muir
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - P Nadeau
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
| | - C Nantais
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - C Ng
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - A J Noble
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - E O'Dwyer
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - C Ohlmann
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - K Olchanski
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - K S Olsen
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - C Ouellet
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - P Pasuthip
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - S J M Peeters
- University of Sussex, Sussex House, Brighton, East Sussex BN1 9RH, United Kingdom
| | - T R Pollmann
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- Department of Physics, Technische Universität München, 80333 Munich, Germany
| | - E T Rand
- Canadian Nuclear Laboratories Ltd, Chalk River, Ontario K0J 1J0, Canada
| | - W Rau
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - C Rethmeier
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - F Retière
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - N Seeburn
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - B Shaw
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - K Singhrao
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - P Skensved
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - B Smith
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - N J T Smith
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
| | - T Sonley
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
| | - J Soukup
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - R Stainforth
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - C Stone
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - V Strickland
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - B Sur
- Canadian Nuclear Laboratories Ltd, Chalk River, Ontario K0J 1J0, Canada
| | - J Tang
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - J Taylor
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - L Veloce
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - E Vázquez-Jáuregui
- Department of Physics and Astronomy, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1M3, Canada
- Instituto de Física, Universidad Nacional Autónoma de México, A. P. 20-364, México D. F. 01000, Mexico
| | - J Walding
- Royal Holloway University London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - M Ward
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - S Westerdale
- Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - E Woolsey
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - J Zielinski
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
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Monroe J, Boparai K, Xiao Y, Followill D, Galvin J, Sohn J. SU-F-P-13: NRG Oncology Medical Physics Manpower Survey Quantifying Support Demands for Multi Institutional Clinical Trials. Med Phys 2016. [DOI: 10.1118/1.4955720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kim S, Kim H, Lee S, Awan M, Rangaraj D, Zheng Y, Monroe J, Partel R, Lo S, Machtay M, Sloan A, Sohn J. SU-F-T-599: Volume-Independent Conformity Index for Stereotactic Brain Tumors. Med Phys 2016. [DOI: 10.1118/1.4956784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Monroe J, Bull C. SU-E-T-710: Study of Dosimetric Leaf Gap and Transmission Factor Variations Affecting Common Clinical QA Tools. Med Phys 2015. [DOI: 10.1118/1.4925074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kim H, Yao M, Monroe J, Lo S, Wessels B, Zhang Y, Machtay M, Sohn J. Case Studies Presenting Dosimetric Uncertainties Using Fuzzy Set Theory. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kim H, Monroe J, Yao M, Lo S, Ellis R, Machtay M, Sohn J. SU-E-J-84: Use of Deformation Error Histogram as An Accuracy Indicator for Deformable Image Registration. Med Phys 2013. [DOI: 10.1118/1.4814296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kim H, Monroe J, Machtay M, Ellis R, Lo S, Yao M, Sohn J. SU-E-J-105: Applying Fuzzy Similarity Index and Ground Truth Fuzzy Contour to Evaluate the Segmentation Accuracy. Med Phys 2013. [DOI: 10.1118/1.4814317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kheifets L, Ahlbom A, Crespi CM, Feychting M, Johansen C, Monroe J, Schuz J, Murphy MFG, Oksuzyan S, Preston-Martin S, Roman E, Saito T, Savitz D, Simpson J, Swanson J, Tynes T, Verkasalo P, Mezei G. THE AUTHORS REPLY. Am J Epidemiol 2010. [DOI: 10.1093/aje/kwq414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kheifets L, Ahlbom A, Crespi CM, Feychting M, Johansen C, Monroe J, Murphy MFG, Oksuzyan S, Preston-Martin S, Roman E, Saito T, Savitz D, Schüz J, Simpson J, Swanson J, Tynes T, Verkasalo P, Mezei G. A pooled analysis of extremely low-frequency magnetic fields and childhood brain tumors. Am J Epidemiol 2010; 172:752-61. [PMID: 20696650 DOI: 10.1093/aje/kwq181] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Pooled analyses may provide etiologic insight about associations between exposure and disease. In contrast to childhood leukemia, no pooled analyses of childhood brain tumors and exposure to extremely low-frequency magnetic fields (ELF-MFs) have been conducted. The authors carried out a pooled analysis based on primary data (1960-2001) from 10 studies of ELF-MF exposure and childhood brain tumors to assess whether the combined results, adjusted for potential confounding, indicated an association. The odds ratios for childhood brain tumors in ELF-MF exposure categories of 0.1-<0.2 μT, 0.2-<0.4 μT, and ≥0.4 μT were 0.95 (95% confidence interval: 0.65, 1.41), 0.70 (95% CI: 0.40, 1.22), and 1.14 (95% CI: 0.61, 2.13), respectively, in comparison with exposure of <0.1 μT. Other analyses employing alternate cutpoints, further adjustment for confounders, exclusion of particular studies, stratification by type of measurement or type of residence, and a nonparametric estimate of the exposure-response relation did not reveal consistent evidence of increased childhood brain tumor risk associated with ELF-MF exposure. These results provide little evidence for an association between ELF-MF exposure and childhood brain tumors.
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Affiliation(s)
- Leeka Kheifets
- Department of Epidemiology, School of Public Health, University of California, Los Angeles, Los Angeles, California 90095-1772, USA.
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Caspar T, Lin TP, Monroe J, Bernhard W, Spilatro S, Preiss J, Somerville C. Altered regulation of beta-amylase activity in mutants of Arabidopsis with lesions in starch metabolism. Proc Natl Acad Sci U S A 2010; 86:5830-3. [PMID: 16594057 PMCID: PMC297724 DOI: 10.1073/pnas.86.15.5830] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Three classes of mutants of Arabidopsis thaliana (L.) Heynhold with alterations in starch metabolism were found to have higher levels of leaf amylase activity than the wild type when grown in a 12-hr photoperiod. This effect was dependent upon the developmental stage of the plants and was largely suppressed during growth in continuous light. The various amylolytic activities in crude extracts were separated by electrophoresis in nondenaturing polyacrylamide gels and visualized by activity staining. The increased amylase activity in the mutants was due to an up to 40-fold increase in the activity of an extrachloroplast beta-amylase (EC 3.2.1.2). These observations indicate the existence of a regulatory mechanism that controls the amount of beta-amylase activity in response to fluctuations in photosynthetic carbohydrate metabolism. It is paradoxical that beta-amylase appears to be a highly regulated enzyme, but as yet no physiologically relevant function can be assigned to this enzyme due to the absence of starch in the cytoplasmic compartment of leaf cells.
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Affiliation(s)
- T Caspar
- Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, MI 48824
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Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fisher M, Fleming BT, Ford R, Garcia FG, Garvey GT, Grange J, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, Mauger C, McGary VT, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Mousseau J, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Ouedraogo S, Patterson RB, Pavlovic Z, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Soderberg M, Sorel M, Spentzouris P, Spitz J, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Search for core-collapse supernovae using the MiniBooNE neutrino detector. Int J Clin Exp Med 2010. [DOI: 10.1103/physrevd.81.032001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, McGary VT, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Soderberg M, Sorel M, Spentzouris P, Spitz J, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Measurement of the ratio of the numu charged-current single-pion production to quasielastic scattering with a 0.8 GeV neutrino beam on mineral oil. Phys Rev Lett 2009; 103:081801. [PMID: 19792715 DOI: 10.1103/physrevlett.103.081801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Indexed: 05/28/2023]
Abstract
Using high statistics samples of charged-current numu interactions, the MiniBooNE [corrected] Collaboration reports a measurement of the single-charged-pion production to quasielastic cross section ratio on mineral oil (CH2), both with and without corrections for hadron reinteractions in the target nucleus. The result is provided as a function of neutrino energy in the range 0.4 GeV<Enu<2.4 GeV with 11% precision in the region of highest statistics. The results are consistent with previous measurements and the prediction from historical neutrino calculations.
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Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Grange J, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, Mauger C, McGary VT, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Mousseau J, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Ouedraogo S, Patterson RB, Pavlovic Z, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Soderberg M, Sorel M, Spentzouris P, Spitz J, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Search for muon neutrino and antineutrino disappearance in MiniBooNE. Phys Rev Lett 2009; 103:061802. [PMID: 19792551 DOI: 10.1103/physrevlett.103.061802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Indexed: 05/28/2023]
Abstract
The MiniBooNE Collaboration reports a search for nu_{micro} and nu[over]_{micro} disappearance in the Deltam;{2} region of 0.5-40 eV;{2}. These measurements are important for constraining models with extra types of neutrinos, extra dimensions, and CPT violation. Fits to the shape of the nu_{micro} and nu[over]_{micro} energy spectra reveal no evidence for disappearance at the 90% confidence level (C.L.) in either mode. The test of nu[over]_{micro} disappearance probes a region below Deltam;{2} = 40 eV;{2} never explored before.
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Rangaraj D, Yang D, Goddu S, Oddiraju S, Yaddanapudi S, Monroe J. SU-FF-T-236: Dynalog Based Quality Assurance for Rapid Arc Therapy. Med Phys 2009. [DOI: 10.1118/1.3181712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Adamson P, Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Bishai M, Brice SJ, Brown BC, Bugel L, Cao J, Choudhary BC, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Gallagher HR, Garcia FG, Garvey GT, Green C, Green JA, Harris D, Hart TL, Hawker E, Hylen J, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kopp S, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Loiacono L, Louis WC, Marchionni A, Mahn KBM, Marsh W, McGregor G, Messier MD, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson JK, Nelson RH, Nguyen VT, Nienaber P, Nowak JA, Ouedraogo S, Patterson RB, Pavlovic Z, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smart W, Smith D, Sodeberg M, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Vahle P, Van de Water R, Viren B, Wascko MO, White DH, Wilking MJ, Yang HJ, Yumiceva FX, Zeller GP, Zimmerman ED, Zwaska R. Measurement of numicro and nue events in an off-axis horn-focused neutrino beam. Phys Rev Lett 2009; 102:211801. [PMID: 19519094 DOI: 10.1103/physrevlett.102.211801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2008] [Indexed: 05/27/2023]
Abstract
We report the first observation of off-axis neutrino interactions in the MiniBooNE detector from the NuMI beam line at Fermilab. The MiniBooNE detector is located 745 m from the NuMI production target, at 110 mrad angle (6.3 degrees) with respect to the NuMI beam axis. Samples of charged-current quasielastic numicro and nue interactions are analyzed and found to be in agreement with expectation. This provides a direct verification of the expected pion and kaon contributions to the neutrino flux and validates the modeling of the NuMI off-axis beam.
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Affiliation(s)
- P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nguyen VT, Nienaber P, Nowak JA, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sodeberg M, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Unexplained excess of electronlike events from a 1-GeV neutrino beam. Phys Rev Lett 2009; 102:101802. [PMID: 19392103 DOI: 10.1103/physrevlett.102.101802] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2008] [Indexed: 05/27/2023]
Abstract
The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46x10;{20} protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2+/-43.4 events, corresponding to an excess of 128.8+/-20.4+/-38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either nu_{e} and nu[over ]_{e} charged-current scattering or nu_{mu} neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9+/-35.7 events.
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Aharmim B, Ahmed SN, Amsbaugh JF, Anthony AE, Banar J, Barros N, Beier EW, Bellerive A, Beltran B, Bergevin M, Biller SD, Boudjemline K, Boulay MG, Bowles TJ, Browne MC, Bullard TV, Burritt TH, Cai B, Chan YD, Chauhan D, Chen M, Cleveland BT, Cox-Mobrand GA, Currat CA, Dai X, Deng H, Detwiler J, DiMarco M, Doe PJ, Doucas G, Drouin PL, Duba CA, Duncan FA, Dunford M, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Fleurot F, Ford RJ, Formaggio JA, Fowler MM, Gagnon N, Germani JV, Goldschmidt A, Goon JTM, Graham K, Guillian E, Habib S, Hahn RL, Hallin AL, Hallman ED, Hamian AA, Harper GC, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Henning R, Hime A, Howard C, Howe MA, Huang M, Jagam P, Jamieson B, Jelley NA, Keeter KJ, Klein JR, Kormos LL, Kos M, Krüger A, Kraus C, Krauss CB, Kutter T, Kyba CCM, Lange R, Law J, Lawson IT, Lesko KT, Leslie JR, Loach JC, MacLellan R, Majerus S, Mak HB, Maneira J, Martin R, McBryde K, McCauley N, McDonald AB, McGee S, Mifflin C, Miller GG, Miller ML, Monreal B, Monroe J, Morissette B, Myers A, Nickel BG, Noble AJ, Oblath NS, O'Keeffe HM, Ollerhead RW, Gann GDO, Oser SM, Ott RA, Peeters SJM, Poon AWP, Prior G, Reitzner SD, Rielage K, Robertson BC, Robertson RGH, Rollin E, Schwendener MH, Secrest JA, Seibert SR, Simard O, Simpson JJ, Sinclair L, Skensved P, Smith MWE, Steiger TD, Stonehill LC, Tesić G, Thornewell PM, Tolich N, Tsui T, Tunnell CD, Van Wechel T, Van Berg R, VanDevender BA, Virtue CJ, Walker TJ, Wall BL, Waller D, Tseung HWC, Wendland J, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wouters JM, Wright A, Yeh M, Zhang F, Zuber K. Independent measurement of the total active 8B solar neutrino flux using an array of 3He proportional counters at the Sudbury Neutrino Observatory. Phys Rev Lett 2008; 101:111301. [PMID: 18851271 DOI: 10.1103/physrevlett.101.111301] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2008] [Indexed: 05/26/2023]
Abstract
The Sudbury Neutrino Observatory (SNO) used an array of 3He proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the total active (nu_x) 8B solar neutrino flux. This technique is independent of previous methods employed by SNO. The total flux is found to be 5.54_-0.31;+0.33(stat)-0.34+0.36(syst)x10(6) cm(-2) s(-1), in agreement with previous measurements and standard solar models. A global analysis of solar and reactor neutrino results yields Deltam2=7.59_-0.21;+0.19x10(-5) eV2 and theta=34.4_-1.2;+1.3 degrees. The uncertainty on the mixing angle has been reduced from SNO's previous results.
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Affiliation(s)
- B Aharmim
- Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6, Canada
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Aguilar-Arevalo AA, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, Martin PS, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Measurement of muon neutrino quasielastic scattering on carbon. Phys Rev Lett 2008; 100:032301. [PMID: 18232974 DOI: 10.1103/physrevlett.100.032301] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Indexed: 05/25/2023]
Abstract
The observation of neutrino oscillations is clear evidence for physics beyond the standard model. To make precise measurements of this phenomenon, neutrino oscillation experiments, including MiniBooNE, require an accurate description of neutrino charged current quasielastic (CCQE) cross sections to predict signal samples. Using a high-statistics sample of nu_(mu) CCQE events, MiniBooNE finds that a simple Fermi gas model, with appropriate adjustments, accurately characterizes the CCQE events observed in a carbon-based detector. The extracted parameters include an effective axial mass, M_(A)(eff)=1.23+/-0.20 GeV, that describes the four-momentum dependence of the axial-vector form factor of the nucleon, and a Pauli-suppression parameter, kappa=1.019+/-0.011. Such a modified Fermi gas model may also be used by future accelerator-based experiments measuring neutrino oscillations on nuclear targets.
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Aguilar-Arevalo AA, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, Martin PS, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Search for electron neutrino appearance at the Delta m2 approximately 1 eV2 scale. Phys Rev Lett 2007; 98:231801. [PMID: 17677898 DOI: 10.1103/physrevlett.98.231801] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2007] [Indexed: 05/16/2023]
Abstract
The MiniBooNE Collaboration reports first results of a search for nu e appearance in a nu mu beam. With two largely independent analyses, we observe no significant excess of events above the background for reconstructed neutrino energies above 475 MeV. The data are consistent with no oscillations within a two-neutrino appearance-only oscillation model.
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Park S, Sohn J, Choe J, Monroe J. SU-FF-T-139: Designing a Patient Identification System Using Bioinformatics - A Fingerprint Approach. Med Phys 2007. [DOI: 10.1118/1.2760797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Sohn J, Luo C, Monroe J, Pillai K, Einstein D, Wessels B, Kinsella T. SU-FF-J-39: Comparison of Patient Positioning Corrections For Prostate IMRT Patients Using Competing Image Guided Radiation Therapy Technologies. Med Phys 2006. [DOI: 10.1118/1.2240817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Xiao F, Pardue S, Arnold TC, Monroe J, Alexander JS, Carden DL, Turnage R, Conrad SA. Ifenprodil treatment is associated with a down-regulation of brain aquaporin 4 following cardiac arrest in rats. Acta Neurochir Suppl 2006; 95:415-9. [PMID: 16463893 DOI: 10.1007/3-211-32318-x_85] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
OBJECTIVES Ifenprodil, a NMDA receptor polyamine site antagonist, reduces experimental cardiac arrest (CA)-elicited brain edema, which is associated with an up-regulation of aquaporin 4 (AQP4), a brain water-selective channel. However, the interacting roles of NMDA receptors and AQP4 in CA-elicited brain edema are unknown. The objective of this study was to test our hypothesis that ifenprodil treatment is associated with a down-regulation of brain AQP4. METHODS Twenty-five rats were assigned to normal controls (group 1, n = 6) or subjected to eight minutes of asphyxial CA treated with placebo (group 2, n = 9) or ifenprodil (group 3, n = 10). Ifenprodil at 10 mg/kg or normal saline of equal volume was given intraperitoneally, 5 minutes before CA. The density of AQP4 protein and actin bands was scanned and expressed as the ratios of the optical density of AQP4 relative to that of actin. The ANOVA analysis was used to compare the group differences. RESULTS The ratios of the optical density of AQP4 to that of actin were 0.88 +/- 0.06 in group 1, 1.11 +/- 0.08 in group 2 (p < 0.05 vs. group 1), and 0.78 +/- 0.04 in group 3 (p < 0.01 vs. group 2; NS vs. group 1). CONCLUSION Ifenprodil given before CA is associated with a downregulation of brain AQP4 in rats.
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Affiliation(s)
- F Xiao
- Department of Emergency Medicine, Louisiana State University Health Science Center, Shreveport 71130, USA.
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Sohn J, Kim S, Monroe J, Chvetsov A, Wessels B. WE-D-I-6B-07: Human and System Error Analysis of a 3D Optical Laser Scanning System for Image-Guided Patient Positioning. Med Phys 2005. [DOI: 10.1118/1.1998543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Monroe J, Hainfeld J, Sohn J, Wessels B. SU-FF-T-314: Initial Monte Carlo Analysis of the Dosimetric Effects of Gold Nanoparticle Radiosensitizers. Med Phys 2005. [DOI: 10.1118/1.1998043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Affiliation(s)
- J Monroe
- New York Presbyterian Hospital-Weill Cornell Center, New York, USA
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Liu G, Duranteau L, Carel JC, Monroe J, Doyle DA, Shenker A. Leydig-cell tumors caused by an activating mutation of the gene encoding the luteinizing hormone receptor. N Engl J Med 1999; 341:1731-6. [PMID: 10580072 DOI: 10.1056/nejm199912023412304] [Citation(s) in RCA: 144] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- G Liu
- Department of Pediatrics, Northwestern University Medical School and Children's Memorial Institute for Education and Research, Chicago, IL 60614, USA
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Abstract
PURPOSE To report an uncommon complication of distal hamstring icing, cryotherapy-induced common peroneal nerve palsy. CASE SUMMARY A 22-year-old football player applied ice to his distal hamstring for 20 min because of soreness. This application of ice resulted in foot drop and sensory changes in the anterior lower leg and dorsum of the foot. Over the next year, full clinical neurologic function returned. DISCUSSION Previously reported cases of cryotherapy-induced common peroneal nerve palsy involved lateral knee or circumferential thigh icing with nerve injury at the fibular neck. This case involved distal hamstring icing, and nerve injury occurred more proximally. RELEVANCE This case demonstrates that caution should be used even when using a modality as common as ice. Ice exposure should be limited in patients with low body fat or in areas where a nerve is not well protected by subcutaneous tissue.
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Affiliation(s)
- J L Moeller
- University of Pittsburgh Medical Center, Department of Family Medicine, Pennsylvania 15213-3221, USA
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Abstract
A monoclonal antibody, RS 5, was raised by injecting sieve elements isolated from tissue cultures of Streptanthus tortuosus (Brassicacae) into BALB/c mice and screening resultant hybridoma supernatants for the labeling of phloem using immunofluorescence microscopy. The RS 5 monoclonal antibody identifies a 57-kD protein on immunoblots, which is present in phloem-forming tissue cultures of S. tortuosus but is absent in cultures that lack phloem. Purified 57-kD protein of S. tortuosus is demonstrated to be a phloem-specific beta-amylase. Partial peptide sequences of the 57-kD protein of S. tortuosus are shown to be 96% identical with the corresponding portions of a deduced sequence reported for a major form of beta-amylase in Arabidopsis thaliana. The RS 5 antibody cross-reacts with the major form of A. thaliana beta-amylase on immunoblots, and the antibody also binds to the sieve elements of A. thaliana using immunofluorescence microscopy. The results suggest that the major form of A. thaliana beta-amylase is a phloem-specific enzyme.
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Affiliation(s)
- Q Wang
- Department of Biological Sciences, University of Iowa, Iowa City 52242, USA
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Crute JJ, Lehman IR, Gambino J, Yang TF, Medveczky P, Medveczky M, Khan NN, Mulder C, Monroe J, Wright GE. Inhibition of herpes simplex virus type 1 helicase-primase by (dichloroanilino)purines and -pyrimidines. J Med Chem 1995; 38:1820-5. [PMID: 7752206 DOI: 10.1021/jm00010a027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Herpes simplex virus type 1 (HSV1) encodes a heterotrimeric helicase-primase comprised of the products of three of the seven DNA replication-specific genes. Several dihalo-substituted derivatives of N2-phenylguanines and 2-anilinoadenines weakly inhibited the intrinsic DNA-dependent NTPase activity of the HSV1 helicase-primase, and these compounds inhibited the DNA-unwinding activity of the enzyme. The primase activity of the enzyme was strongly inhibited by 3,4- and 3,5-dichloroanilino derivatives of adenine and 2-aminopyrimidines. These compounds and nucleoside analogs of 2-(3,5-dichloroanilino)purines inhibited viral DNA synthesis in HSV1-infected HeLa cells in culture but also inhibited cellular DNA synthesis, likely as a result of inhibition of cellular primase and/or DNA polymerases.
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Affiliation(s)
- J J Crute
- Department of Biochemistry, Stanford University Medical School, California 94305, USA
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Albright JP, Powell JW, Smith W, Martindale A, Crowley E, Monroe J, Miller R, Connolly J, Hill BA, Miller D. Medial collateral ligament knee sprains in college football. Effectiveness of preventive braces. Am J Sports Med 1994; 22:12-8. [PMID: 8129094 DOI: 10.1177/036354659402200103] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
This is the second of 2 articles on a 3-year investigation of medial collateral ligament sprains of the knee to assess the effectiveness of prophylactic knee braces in NCAA Division I college football players. Position, string, type of session, and daily brace wear were recorded. The injury rates for braced and unbraced knees were used to create an incidence density ratio. The data were stratified and simultaneously controlled for position, string, and session and evaluated for their statistical significance. The 987 Big Ten players generated 155,772 knee exposures over the study period (50% braced). Noticeable differences existed in the rates of injury for the braced and unbraced knees in almost every position during practices, depending on player or nonplayer status. When the influential factors of position, string, and session are considered, there is a consistent but not statistically significant tendency for the players wearing preventive knee braces to experience a lower injury rate than for their unbraced counterparts. For starters and substitutes in the line positions, as well as the linebackers and tight ends, there was a consistent trend toward a lower injury rate in both practices and games. The braced players in the skill positions (backs/kickers), at least during games, exhibited a higher injury rate.
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Affiliation(s)
- J P Albright
- Department of Orthopaedic Surgery, University of Iowa, Iowa City 52242
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Albright JP, Powell JW, Smith W, Martindale A, Crowley E, Monroe J, Miller R, Connolly J, Hill BA, Miller D. Medial collateral ligament knee sprains in college football. Brace wear preferences and injury risk. Am J Sports Med 1994; 22:2-11. [PMID: 8129105 DOI: 10.1177/036354659402200102] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In this prospective, multiinstitutional analysis of medial collateral ligament sprains in college football players, we categorized 987 previously uninjured study subjects according to frequency of wearing preventive knee braces, studied the patterns by which 47 of 100 injuries occurred to unbraced knees, and identified several extrinsic, sport-specific risk factors shared for both braced and unbraced knees. The attendance, brace wear choice, position, string, and session of each participant were recorded daily; medial collateral ligament sprains were reported whenever tissue damage was confirmed. Both the likelihood of wearing braces and risk of injury without them was highly dependent on session (games/practices), position group (line, linebacker/tight end, skill), and string group (players/nonplayers). Subjects wearing braces often faced a high injury risk to their unbraced knees, a finding compatible with the opinion that braces were a necessary evil, best worn when concern over danger of injury outweighed desire for speed and agility. It is concluded that to avoid misinterpretations due to the confounding influence of brace wear selection bias, accurate investigation of daily brace wear patterns is required. Then, before considing the impact of preventive knee braces, a repartitioning of the data base is essential to assure that only similar groups will be compared.
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Affiliation(s)
- J P Albright
- Department of Orthopaedic Surgery, University of Iowa, Iowa City 52242
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Abstract
A totally nurse-dependent charging system developed specifically for the labor and delivery suite at the University of Maryland Medical System is described in the article. This easy and effective method of charging was incorporated into an already existing patient census and classification system. The number of relative value units has increased by more than 30%, and the amount of revenue billed has increased by more than $800,000 in the first 10 months after implementation.
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Affiliation(s)
- J Monroe
- Greater Baltimore Medical Center, MD 21204
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Wright KW, Monroe J, Beck F. A history of the Ray Brook State Tuberculosis Hospital. N Y State J Med 1990; 90:406-13. [PMID: 2205813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Sutton-Tyrrell K, Abramson NS, Safar P, Detre K, Kelsey SF, Monroe J, Reinmuth O, Mullie A, Vandevelde K, Hedstrand U. Predictors of electromechanical dissociation during cardiac arrest. Ann Emerg Med 1988; 17:572-5. [PMID: 3377284 DOI: 10.1016/s0196-0644(88)80394-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
ECG patterns observed during cardiac arrest were analyzed in 261 comatose cardiac arrest survivors. Forty-seven patients (18%) exhibited electromechanical dissociation (EMD) at some point before restoration of stable spontaneous circulation. These patients had a higher mortality (P = .05) and a lower rate of cerebral recovery (P = .01) during the one-year follow-up than study patients who did not exhibit EMD. Patients who developed EMD subsequent to defibrillation had better outcome than patients presenting with EMD. Multivariate analysis revealed that age more than 70 years old (P = .007), pulmonary disease (P less than .001), diabetes (P = .013, in-hospital arrests only), and prearrest hypoxemia (P = .013, outside-hospital arrests only) were independently predictive of the occurrence of EMD. Although the generalizability of these findings is limited, they may offer new clues to the pathophysiology of EMD.
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Affiliation(s)
- K Sutton-Tyrrell
- Department of Epidemiology, University of Pittsburgh, Pennsylvania 15261
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Brown ST, Monroe J. Federal resources for injury control. Bull N Y Acad Med 1988; 64:857-63. [PMID: 2853641 PMCID: PMC1630602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Abramson NS, Safar P, Detre KM, Kelsey SF, Monroe J, Reinmuth O, Snyder JV. Neurologic recovery after cardiac arrest: effect of duration of ischemia. Brain Resuscitation Clinical Trial I Study Group. Crit Care Med 1985; 13:930-1. [PMID: 4053643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Wallace JI, Downes J, Ott A, Friedman S, Reiss R, Monroe J, Jordan D, Thomas Y, Glickman E, Rogozinski L. T-cell ratios: sperm and asialo GM1 antibody levels in New York City prostitutes. Ann N Y Acad Sci 1984; 437:568-75. [PMID: 6242009 DOI: 10.1111/j.1749-6632.1984.tb37187.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Monroe J, Loré JM. Metastatic glomus jugulare tumor. Ear Nose Throat J 1977; 56:50-4. [PMID: 189985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Monroe J. Hospital library cooperation in Kentucky, Ohio & Michigan. Hosp Libr 1976; 1:5-7. [PMID: 10246736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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