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Ali B, Arnquist I, Baxter D, Behnke E, Bressler M, Broerman B, Chen C, Clark K, Collar J, Cooper P, Cripe C, Crisler M, Dahl C, Das M, Durnford D, Fallows S, Farine J, Filgas R, García-Viltres A, Giroux G, Harris O, Hillier T, Hoppe E, Jackson C, Jin M, Krauss C, Kumar V, Laurin M, Lawson I, Leblanc A, Leng H, Levine I, Licciardi C, Linden S, Mitra P, Monette V, Moore C, Neilson R, Noble A, Nozard H, Pal S, Piro MC, Plante A, Priya S, Rethmeier C, Robinson A, Savoie J, Sonnenschein A, Starinski N, Štekl I, Tiwari D, Vázquez-Jáuregui E, Wichoski U, Zacek V, Zhang J. Results on photon-mediated dark-matter–nucleus interactions from the PICO-60
C3F8
bubble chamber. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.042004] [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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2
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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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3
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Amole C, Ardid M, Arnquist I, Asner D, Baxter D, Behnke E, Bressler M, Broerman B, Cao G, Chen C, Chowdhury U, Clark K, Collar J, Cooper P, Coutu C, Cowles C, Crisler M, Crowder G, Cruz-Venegas N, Dahl C, Das M, Fallows S, Farine J, Felis I, Filgas R, Girard F, Giroux G, Hall J, Hardy C, Harris O, Hillier T, Hoppe E, Jackson C, Jin M, Klopfenstein L, Kozynets T, Krauss C, Laurin M, Lawson I, Leblanc A, Levine I, Licciardi C, Lippincott W, Loer B, Mamedov F, Mitra P, Moore C, Nania T, Neilson R, Noble A, Oedekerk P, Ortega A, Piro MC, Plante A, Podviyanuk R, Priya S, Robinson A, Sahoo S, Scallon O, Seth S, Sonnenschein A, Starinski N, Štekl I, Sullivan T, Tardif F, Vázquez-Jáuregui E, Walkowski N, Weima E, Wichoski U, Wierman K, Yan Y, Zacek V, Zhang J. Dark matter search results from the complete exposure of the PICO-60
C3F8
bubble chamber. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.100.022001] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [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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Amole C, Ardid M, Arnquist IJ, Asner DM, Baxter D, Behnke E, Bhattacharjee P, Borsodi H, Bou-Cabo M, Campion P, Cao G, Chen CJ, Chowdhury U, Clark K, Collar JI, Cooper PS, Crisler M, Crowder G, Dahl CE, Das M, Fallows S, Farine J, Felis I, Filgas R, Girard F, Giroux G, Hall J, Harris O, Hoppe EW, Jin M, Krauss CB, Laurin M, Lawson I, Leblanc A, Levine I, Lippincott WH, Mamedov F, Maurya D, Mitra P, Nania T, Neilson R, Noble AJ, Olson S, Ortega A, Plante A, Podviyanuk R, Priya S, Robinson AE, Roeder A, Rucinski R, Scallon O, Seth S, Sonnenschein A, Starinski N, Štekl I, Tardif F, Vázquez-Jáuregui E, Wells J, Wichoski U, Yan Y, Zacek V, Zhang J. Dark Matter Search Results from the PICO-60 C_{3}F_{8} Bubble Chamber. Phys Rev Lett 2017; 118:251301. [PMID: 28696731 DOI: 10.1103/physrevlett.118.251301] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Indexed: 06/07/2023]
Abstract
New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C_{3}F_{8} located in the SNOLAB underground laboratory. As in previous PICO bubble chambers, PICO-60 C_{3}F_{8} exhibits excellent electron recoil and alpha decay rejection, and the observed multiple-scattering neutron rate indicates a single-scatter neutron background of less than one event per month. A blind analysis of an efficiency-corrected 1167-kg day exposure at a 3.3-keV thermodynamic threshold reveals no single-scattering nuclear recoil candidates, consistent with the predicted background. These results set the most stringent direct-detection constraint to date on the weakly interacting massive particle (WIMP)-proton spin-dependent cross section at 3.4×10^{-41} cm^{2} for a 30-GeV c^{-2} WIMP, more than 1 order of magnitude improvement from previous PICO results.
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Affiliation(s)
- C Amole
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - M Ardid
- Departament de Física Aplicada, IGIC-Universitat Politècnica de València, Gandia 46730 Spain
| | - I J Arnquist
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - D Baxter
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - E Behnke
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - P Bhattacharjee
- Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - H Borsodi
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - M Bou-Cabo
- Departament de Física Aplicada, IGIC-Universitat Politècnica de València, Gandia 46730 Spain
| | - P Campion
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - G Cao
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - C J Chen
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - U Chowdhury
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - K Clark
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | - J I Collar
- Enrico Fermi Institute, KICP and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - P S Cooper
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Crisler
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G Crowder
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - C E Dahl
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Das
- Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - S Fallows
- Department of Physics, University of Alberta, Edmonton T6G 2E1, Canada
| | - J Farine
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - I Felis
- Departament de Física Aplicada, IGIC-Universitat Politècnica de València, Gandia 46730 Spain
| | - R Filgas
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague, Cz-12800, Czech Republic
| | - F Girard
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - G Giroux
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - J Hall
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - O Harris
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
- Northeastern Illinois University, Chicago, Illinois 60625, USA
| | - E W Hoppe
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M Jin
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - C B Krauss
- Department of Physics, University of Alberta, Edmonton T6G 2E1, Canada
| | - M Laurin
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - I Lawson
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | - A Leblanc
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - I Levine
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - W H Lippincott
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - F Mamedov
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague, Cz-12800, Czech Republic
| | - D Maurya
- Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Material and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061, USA
| | - P Mitra
- Department of Physics, University of Alberta, Edmonton T6G 2E1, Canada
| | - T Nania
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - R Neilson
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - A J Noble
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - S Olson
- Department of Physics, Queen's University, Kingston K7L 3N6, Canada
| | - A Ortega
- Enrico Fermi Institute, KICP and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - A Plante
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - R Podviyanuk
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - S Priya
- Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Material and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061, USA
| | - A E Robinson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Roeder
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - R Rucinski
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - O Scallon
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - S Seth
- Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - A Sonnenschein
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - N Starinski
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - I Štekl
- Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague, Cz-12800, Czech Republic
| | - F Tardif
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - E Vázquez-Jáuregui
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
- Instituto de Física, Universidad Nacional Autónoma de México, México D. F. 01000, Mexico
| | - J Wells
- Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA
| | - U Wichoski
- Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada
| | - Y Yan
- Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Material and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061, USA
| | - V Zacek
- Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada
| | - J Zhang
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
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5
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Amole C, Ardid M, Asner DM, Baxter D, Behnke E, Bhattacharjee P, Borsodi H, Bou-Cabo M, Brice SJ, Broemmelsiek D, Clark K, Collar JI, Cooper PS, Crisler M, Dahl CE, Das M, Debris F, Dhungana N, Farine J, Felis I, Filgas R, Fines-Neuschild M, Girard F, Giroux G, Hai M, Hall J, Harris O, Jackson CM, Jin M, Krauss C, Lafrenière M, Laurin M, Lawson I, Levine I, Lippincott WH, Mann E, Martin JP, Maurya D, Mitra P, Neilson R, Noble AJ, Plante A, Podviyanuk R, Priya S, Robinson AE, Ruschman M, Scallon O, Seth S, Sonnenschein A, Starinski N, Štekl I, Vázquez-Jáuregui E, Wells J, Wichoski U, Zacek V, Zhang J. PICASSO, COUPP and PICO - search for dark matter with bubble chambers. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20159504020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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6
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Behnke E, Behnke J, Brice SJ, Broemmelsiek D, Collar JI, Cooper PS, Crisler M, Dahl CE, Fustin D, Hall J, Hinnefeld JH, Hu M, Levine I, Ramberg E, Shepherd T, Sonnenschein A, Szydagis M. Improved limits on spin-dependent WIMP-proton interactions from a two liter CF3I bubble chamber. Phys Rev Lett 2011; 106:021303. [PMID: 21405218 DOI: 10.1103/physrevlett.106.021303] [Citation(s) in RCA: 11] [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: 08/20/2010] [Indexed: 05/30/2023]
Abstract
Data from the operation of a bubble chamber filled with 3.5 kg of CF3I in a shallow underground site are reported. An analysis of ultrasound signals accompanying bubble nucleations confirms that alpha decays generate a significantly louder acoustic emission than single nuclear recoils, leading to an efficient background discrimination. Three dark matter candidate events were observed during an effective exposure of 28.1 kg day, consistent with a neutron background. This observation provides strong direct detection constraints on weakly interacting massive particle (WIMP)-proton spin-dependent scattering for WIMP masses >20 GeV/c2.
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Affiliation(s)
- E Behnke
- Indiana University South Bend, South Bend, Indiana, USA
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7
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Behnke E, Collar JI, Cooper PS, Crum K, Crisler M, Hu M, Levine I, Nakazawa D, Nguyen H, Odom B, Ramberg E, Rasmussen J, Riley N, Sonnenschein A, Szydagis M, Tschirhart R. Spin-Dependent WIMP Limits from a Bubble Chamber. Science 2008; 319:933-6. [DOI: 10.1126/science.1149999] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- E. Behnke
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - J. I. Collar
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - P. S. Cooper
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - K. Crum
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - M. Crisler
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - M. Hu
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - I. Levine
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - D. Nakazawa
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - H. Nguyen
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - B. Odom
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - E. Ramberg
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - J. Rasmussen
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - N. Riley
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - A. Sonnenschein
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - M. Szydagis
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
| | - R. Tschirhart
- Department of Physics and Astronomy, Indiana University South Bend, South Bend, IN 46634, USA
- Department of Physics, Enrico Fermi Institute, and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
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8
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Azuelos G, Barnabé-Heider M, Behnke E, Clark K, Di Marco M, Doane P, Feighery W, Genest MH, Gornea R, Guenette R, Kanagalingam S, Krauss C, Leroy C, Lessard L, Levine I, Martin JP, Noble AJ, Noulty R, Shore SN, Wichoski U, Zacek V. Direct dark matter search using large-mass superheated droplet detectors in the PICASSO experiment. Radiat Prot Dosimetry 2006; 120:495-8. [PMID: 16644961 DOI: 10.1093/rpd/nci624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The PICASSO experiment investigates the presence and nature of dark matter in the Universe. The experiment is based on the detection of acoustic signals generated in explosive phase transitions induced by dark matter particles. This technique is an alternative more traditional detection technique like scintillation and ionisation, which are largely employed for dark matter search. One of the main advantages of this technique, besides its sensitivity to very low nuclear recoil energies (few keV), is its excellent background suppression features. A pilot experiment consisting of six superheated droplet detectors (40 g of active mass) is presently taking data at the Sudbury Neutrino Observatory (SNO) at a depth of 2000 m. We discuss the operation, calibration and data acquisition of the experiment and also the ongoing work to increase the sensitivity and the active mass of the detectors.
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Affiliation(s)
- G Azuelos
- Groupe de Physique des Particules, Département de Physique, Université de Montréal, C.P. 6128, Succ.Centre-Ville, Montréal (Québec) H3C 3J7, Canada
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9
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Azuelos G, Barnabé-Heider M, Behnke E, Clark K, Di Marco M, Doane P, Feighery W, Genest MH, Gornea R, Guénette R, Kanagalingam S, Krauss C, Leroy C, Lessard L, Levine I, Martin JP, Noble AJ, Noulty R, Shore SN, Wichoski U, Zacek V. Simulation of special bubble detectors for PICASSO. Radiat Prot Dosimetry 2006; 120:499-502. [PMID: 16822778 DOI: 10.1093/rpd/nci666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The PICASSO project is a cold dark matter (CDM) search experiment relying on the superheated droplet technique. The detectors use superheated freon liquid droplets (active material) dispersed and trapped in a polymerised gel. This detection technique is based on the phase transition of superheated droplets at about room temperature and ambient pressure. The phase transition is induced by nuclear recoils when an atomic nucleus in the droplets interacts with incoming subatomic particles. This includes CDM particles candidate as the neutralino (a yet-to-discover particle predicted in extensions of the standard model of particle physics). Simulations performed to understand the detector response to neutrons and alpha particles are presented along with corresponding data obtained at the Montreal Laboratory.
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Affiliation(s)
- G Azuelos
- Groupe de Physique des Particules, Département de Physique, Université de Montréal, C.P. 6128, Succ.Centre-Ville, Montréal (Québec) H3C 3J7, Canada
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10
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Barnabé-Heider M, Behnke E, Behnke J, Di Marco M, Doane P, Feighery W, Genest MH, Gornea R, Kanagalingam S, Leroy C, Lessard L, Levine I, Martin J, Mathusi C, Neurenberg J, Noble A, Noulty R, Nymberg R, Shore S, Wichoski U, Zacek V. Status of the Picasso project. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.nuclphysbps.2004.11.037] [Citation(s) in RCA: 3] [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: 10/26/2022]
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Ahmed SN, Anthony AE, Beier EW, Bellerive A, Biller SD, Boger J, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Bullard TV, Chan YD, Chen M, Chen X, Cleveland BT, Cox GA, Dai X, Dalnoki-Veress F, Doe PJ, Dosanjh RS, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunford M, Dunmore JA, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Fleurot F, Formaggio JA, Fowler MM, Frame K, Fulsom BG, Gagnon N, Graham K, Grant DR, Hahn RL, Hall JC, Hallin AL, Hallman ED, Hamer AS, Handler WB, Hargrove CK, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hemingway RJ, Hime A, Howe MA, Jagam P, Jelley NA, Klein JR, Kos MS, Krumins AV, Kutter T, Kyba CCM, Labranche H, Lange R, Law J, Lawson IT, Lesko KT, Leslie JR, Levine I, Luoma S, MacLellan R, Majerus S, Mak HB, Maneira J, Marino AD, McCauley N, McDonald AB, McGee S, McGregor G, Mifflin C, Miknaitis KKS, Miller GG, Moffat BA, Nally CW, Nickel BG, Noble AJ, Norman EB, Oblath NS, Okada CE, Ollerhead RW, Orrell JL, Oser SM, Ouellet C, Peeters SJM, Poon AWP, Robertson BC, Robertson RGH, Rollin E, Rosendahl SSE, Rusu VL, Schwendener MH, Simard O, Simpson JJ, Sims CJ, Sinclair D, Skensved P, Smith MWE, Starinsky N, Stokstad RG, Stonehill LC, Tafirout R, Takeuchi Y, Tesić G, Thomson M, Thorman M, Van Berg R, Van de Water RG, Virtue CJ, Wall BL, Waller D, Waltham CE, Tseung HWC, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wouters JM, Yeh M, Zuber K. Measurement of the total active 8B solar neutrino flux at the Sudbury Neutrino Observatory with enhanced neutral current sensitivity. Phys Rev Lett 2004; 92:181301. [PMID: 15169480 DOI: 10.1103/physrevlett.92.181301] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2003] [Indexed: 05/24/2023]
Abstract
The Sudbury Neutrino Observatory has precisely determined the total active (nu(x)) 8B solar neutrino flux without assumptions about the energy dependence of the nu(e) survival probability. The measurements were made with dissolved NaCl in heavy water to enhance the sensitivity and signature for neutral-current interactions. The flux is found to be 5.21 +/- 0.27(stat)+/-0.38(syst) x 10(6) cm(-2) s(-1), in agreement with previous measurements and standard solar models. A global analysis of these and other solar and reactor neutrino results yields Deltam(2)=7.1(+1.2)(-0.6) x 10(-5) eV(2) and theta=32.5(+2.4)(-2.3) degrees. Maximal mixing is rejected at the equivalent of 5.4 standard deviations.
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Affiliation(s)
- S N Ahmed
- Department of Physics, Queen's University, Kingston, Ontario K7L 3N6 Canada
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Ahmed SN, Anthony AE, Beier EW, Bellerive A, Biller SD, Boger J, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Bullard TV, Chan YD, Chen M, Chen X, Cleveland BT, Cox GA, Dai X, Dalnoki-Veress F, Doe PJ, Dosanjh RS, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunford M, Dunmore JA, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Fleurot F, Formaggio JA, Fowler MM, Frame K, Frati W, Fulsom BG, Gagnon N, Graham K, Grant DR, Hahn RL, Hall JC, Hallin AL, Hallman ED, Hamer AS, Handler WB, Hargrove CK, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hemingway RJ, Hime A, Howe MA, Jagam P, Jelley NA, Klein JR, Kos MS, Krumins AV, Kutter T, Kyba CCM, Labranche H, Lange R, Law J, Lawson IT, Lesko KT, Leslie JR, Levine I, Luoma S, MacLellan R, Majerus S, Mak HB, Maneira J, Marino AD, McCauley N, McDonald AB, McGee S, McGregor G, Mifflin C, Miknaitis KKS, Miller GG, Moffat BA, Nally CW, Neubauer MS, Nickel BG, Noble AJ, Norman EB, Oblath NS, Okada CE, Ollerhead RW, Orrell JL, Oser SM, Ouellet C, Peeters SJM, Poon AWP, Robertson BC, Robertson RGH, Rollin E, Rosendahl SSE, Rusu VL, Schwendener MH, Simard O, Simpson JJ, Sims CJ, Sinclair D, Skensved P, Smith MWE, Starinsky N, Stokstad RG, Stonehill LC, Tafirout R, Takeuchi Y, Tesić G, Thomson M, Thorman M, Van Berg R, Van de Water RG, Virtue CJ, Wall BL, Waller D, Waltham CE, Tseung HWC, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wittich P, Wouters JM, Yeh M, Zuber K. Constraints on nucleon decay via invisible modes from the Sudbury Neutrino Observatory. Phys Rev Lett 2004; 92:102004. [PMID: 15089201 DOI: 10.1103/physrevlett.92.102004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2003] [Indexed: 05/24/2023]
Abstract
Data from the Sudbury Neutrino Observatory have been used to constrain the lifetime for nucleon decay to "invisible" modes, such as n-->3nu. The analysis was based on a search for gamma rays from the deexcitation of the residual nucleus that would result from the disappearance of either a proton or neutron from 16O. A limit of tau(inv)>2 x 10(29) yr is obtained at 90% confidence for either neutron- or proton-decay modes. This is about an order of magnitude more stringent than previous constraints on invisible proton-decay modes and 400 times more stringent than similar neutron modes.
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Affiliation(s)
- S N Ahmed
- Department of Physics, Queen's University, Kingston, Ontario, Canada K7L 3N6
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Hallin A, Beier E, Biller S, Boulay M, Bowler M, Bowles T, Brice S, Bullard T, Cameron J, Chan Y, Chen X, Chen M, Cleveland B, Cox G, Dai X, Dalnoki-Veress F, Doe P, Doucas G, Dragowsky M, Duba C, Duncan F, Dunford M, Dunmore J, Earle E, Elliott S, Evans H, Ewan G, Farine J, Fergani H, Formaggio J, Fowler M, Frame K, Frati W, Gagnon N, Graham K, Grant D, Hahn R, Hallman E, Hamer A, Handler W, Hargrove C, Harvey P, Hazama R, Heeger K, Heintzelman W, Heise J, Helmer R, Hime A, Howe M, Jagam P, Jelley N, Kazkaz K, Keener P, Klein J, Kutter T, Kyba C, Law J, Lawson I, Lesko K, Leslie J, Levine I, Luoma S, Majerus S, Mak H, Maneira J, Manor J, Marino A, McCauley N, McDonald A, McGregor G, Miller G, Nally C, Noble A, Norman E, Okada C, Orrell J, Oser S, Poon A, Robertson B, Robertson R, Rosendahl S, Rusu V, Schaffer K, Schwendener M, Simpson J, Sims C, Sinclair D, Skensved P, Smith M, Spreitzer T, Starinsky N, Stokstad R, Stonehill L, Tafirout R, Tagg N, Van Berg R, Van de Water R, Virtue C, Waltham C, Wark D, West N, Wilhelmy J, Wilkerson J, Wilson J, Wittich P, Wouters J, Yeh M. Neutral current and day night measurements from the pure D2O phase of SNO. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0920-5632(03)01298-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ahmad QR, Allen RC, Andersen TC, Anglin JD, Barton JC, Beier EW, Bercovitch M, Bigu J, Biller SD, Black RA, Blevis I, Boardman RJ, Boger J, Bonvin E, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Browne MC, Bullard TV, Bühler G, Cameron J, Chan YD, Chen HH, Chen M, Chen X, Cleveland BT, Clifford ETH, Cowan JHM, Cowen DF, Cox GA, Dai X, Dalnoki-Veress F, Davidson WF, Doe PJ, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunford M, Dunmore JA, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Ferraris AP, Ford RJ, Formaggio JA, Fowler MM, Frame K, Frank ED, Frati W, Gagnon N, Germani JV, Gil S, Graham K, Grant DR, Hahn RL, Hallin AL, Hallman ED, Hamer AS, Hamian AA, Handler WB, Haq RU, Hargrove CK, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hepburn JD, Heron H, Hewett J, Hime A, Howe M, Hykawy JG, Isaac MCP, Jagam P, Jelley NA, Jillings C, Jonkmans G, Kazkaz K, Keener PT, Klein JR, Knox AB, Komar RJ, Kouzes R, Kutter T, Kyba CCM, Law J, Lawson IT, Lay M, Lee HW, Lesko KT, Leslie JR, Levine I, Locke W, Luoma S, Lyon J, Majerus S, Mak HB, Maneira J, Manor J, Marino AD, McCauley N, McDonald AB, McDonald DS, McFarlane K, McGregor G, Meijer Drees R, Mifflin C, Miller GG, Milton G, Moffat BA, Moorhead M, Nally CW, Neubauer MS, Newcomer FM, Ng HS, Noble AJ, Norman EB, Novikov VM, O'Neill M, Okada CE, Ollerhead RW, Omori M, Orrell JL, Oser SM, Poon AWP, Radcliffe TJ, Roberge A, Robertson BC, Robertson RGH, Rosendahl SSE, Rowley JK, Rusu VL, Saettler E, Schaffer KK, Schwendener MH, Schülke A, Seifert H, Shatkay M, Simpson JJ, Sims CJ, Sinclair D, Skensved P, Smith AR, Smith MWE, Spreitzer T, Starinsky N, Steiger TD, Stokstad RG, Stonehill LC, Storey RS, Sur B, Tafirout R, Tagg N, Tanner NW, Taplin RK, Thorman M, Thornewell PM, Trent PT, Tserkovnyak YI, Van Berg R, Van de Water RG, Virtue CJ, Waltham CE, Wang JX, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wittich P, Wouters JM, Yeh M. Measurement of day and night neutrino energy spectra at SNO and constraints on neutrino mixing parameters. Phys Rev Lett 2002; 89:011302. [PMID: 12097026 DOI: 10.1103/physrevlett.89.011302] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2002] [Indexed: 05/23/2023]
Abstract
The Sudbury Neutrino Observatory (SNO) has measured day and night solar neutrino energy spectra and rates. For charged current events, assuming an undistorted 8B spectrum, the night minus day rate is 14.0%+/-6.3%(+1.5%)(-1.4%) of the average rate. If the total flux of active neutrinos is additionally constrained to have no asymmetry, the nu(e) asymmetry is found to be 7.0%+/-4.9%(+1.3%)(-1.2%). A global solar neutrino analysis in terms of matter-enhanced oscillations of two active flavors strongly favors the large mixing angle solution.
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Affiliation(s)
- Q R Ahmad
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
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Ahmad QR, Allen RC, Andersen TC, D Anglin J, Barton JC, Beier EW, Bercovitch M, Bigu J, Biller SD, Black RA, Blevis I, Boardman RJ, Boger J, Bonvin E, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Browne MC, Bullard TV, Bühler G, Cameron J, Chan YD, Chen HH, Chen M, Chen X, Cleveland BT, Clifford ETH, Cowan JHM, Cowen DF, Cox GA, Dai X, Dalnoki-Veress F, Davidson WF, Doe PJ, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunford M, Dunmore JA, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Ferraris AP, Ford RJ, Formaggio JA, Fowler MM, Frame K, Frank ED, Frati W, Gagnon N, Germani JV, Gil S, Graham K, Grant DR, Hahn RL, Hallin AL, Hallman ED, Hamer AS, Hamian AA, Handler WB, Haq RU, Hargrove CK, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hepburn JD, Heron H, Hewett J, Hime A, Howe M, Hykawy JG, Isaac MCP, Jagam P, Jelley NA, Jillings C, Jonkmans G, Kazkaz K, Keener PT, Klein JR, Knox AB, Komar RJ, Kouzes R, Kutter T, Kyba CCM, Law J, Lawson IT, Lay M, Lee HW, Lesko KT, Leslie JR, Levine I, Locke W, Luoma S, Lyon J, Majerus S, Mak HB, Maneira J, Manor J, Marino AD, McCauley N, McDonald AB, McDonald DS, McFarlane K, McGregor G, Meijer Drees R, Mifflin C, Miller GG, Milton G, Moffat BA, Moorhead M, Nally CW, Neubauer MS, Newcomer FM, Ng HS, Noble AJ, Norman EB, Novikov VM, O'Neill M, Okada CE, Ollerhead RW, Omori M, Orrell JL, Oser SM, Poon AWP, Radcliffe TJ, Roberge A, Robertson BC, Robertson RGH, Rosendahl SSE, Rowley JK, Rusu VL, Saettler E, Schaffer KK, Schwendener MH, Schülke A, Seifert H, Shatkay M, Simpson JJ, Sims CJ, Sinclair D, Skensved P, Smith AR, Smith MWE, Spreitzer T, Starinsky N, Steiger TD, Stokstad RG, Stonehill LC, Storey RS, Sur B, Tafirout R, Tagg N, Tanner NW, Taplin RK, Thorman M, Thornewell PM, Trent PT, Tserkovnyak YI, Van Berg R, Van de Water RG, Virtue CJ, Waltham CE, Wang JX, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wittich P, Wouters JM, Yeh M. Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory. Phys Rev Lett 2002; 89:011301. [PMID: 12097025 DOI: 10.1103/physrevlett.89.011301] [Citation(s) in RCA: 170] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2002] [Indexed: 05/23/2023]
Abstract
Observations of neutral-current nu interactions on deuterium in the Sudbury Neutrino Observatory are reported. Using the neutral current (NC), elastic scattering, and charged current reactions and assuming the standard 8B shape, the nu(e) component of the 8B solar flux is phis(e) = 1.76(+0.05)(-0.05)(stat)(+0.09)(-0.09)(syst) x 10(6) cm(-2) s(-1) for a kinetic energy threshold of 5 MeV. The non-nu(e) component is phi(mu)(tau) = 3.41(+0.45)(-0.45)(stat)(+0.48)(-0.45)(syst) x 10(6) cm(-2) s(-1), 5.3sigma greater than zero, providing strong evidence for solar nu(e) flavor transformation. The total flux measured with the NC reaction is phi(NC) = 5.09(+0.44)(-0.43)(stat)(+0.46)(-0.43)(syst) x 10(6) cm(-2) s(-1), consistent with solar models.
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Affiliation(s)
- Q R Ahmad
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
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Ahmad QR, Allen RC, Andersen TC, Anglin JD, Bühler G, Barton JC, Beier EW, Bercovitch M, Bigu J, Biller S, Black RA, Blevis I, Boardman RJ, Boger J, Bonvin E, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Browne MC, Bullard TV, Burritt TH, Cameron K, Cameron J, Chan YD, Chen M, Chen HH, Chen X, Chon MC, Cleveland BT, Clifford ET, Cowan JH, Cowen DF, Cox GA, Dai Y, Dai X, Dalnoki-Veress F, Davidson WF, Doe PJ, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunmore J, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Ferraris AP, Ford RJ, Fowler MM, Frame K, Frank ED, Frati W, Germani JV, Gil S, Goldschmidt A, Grant DR, Hahn RL, Hallin AL, Hallman ED, Hamer A, Hamian AA, Haq RU, Hargrove CK, Harvey PJ, Hazama R, Heaton R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hepburn JD, Heron H, Hewett J, Hime A, Howe M, Hykawy JG, Isaac MC, Jagam P, Jelley NA, Jillings C, Jonkmans G, Karn J, Keener PT, Kirch K, Klein JR, Knox AB, Komar RJ, Kouzes R, Kutter T, Kyba CC, Law J, Lawson IT, Lay M, Lee HW, Lesko KT, Leslie JR, Levine I, Locke W, Lowry MM, Luoma S, Lyon J, Majerus S, Mak HB, Marino AD, McCauley N, McDonald AB, McDonald DS, McFarlane K, McGregor G, McLatchie W, Meijer Drees R, Mes H, Mifflin C, Miller GG, Milton G, Moffat BA, Moorhead M, Nally CW, Neubauer MS, Newcomer FM, Ng HS, Noble AJ, Norman EB, Novikov VM, O'Neill M, Okada CE, Ollerhead RW, Omori M, Orrell JL, Oser SM, Poon AW, Radcliffe TJ, Roberge A, Robertson BC, Robertson RG, Rowley JK, Rusu VL, Saettler E, Schaffer KK, Schuelke A, Schwendener MH, Seifert H, Shatkay M, Simpson JJ, Sinclair D, Skensved P, Smith AR, Smith MW, Starinsky N, Steiger TD, Stokstad RG, Storey RS, Sur B, Tafirout R, Tagg N, Tanner NW, Taplin RK, Thorman M, Thornewell P, Trent PT, Tserkovnyak YI, Van Berg R, Van de Water RG, Virtue CJ, Waltham CE, Wang JX, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson J, Wittich P, Wouters JM, Yeh M. Measurement of the rate of nu(e) + d --> p + p + e(-) interactions produced by (8)B solar neutrinos at the Sudbury Neutrino Observatory. Phys Rev Lett 2001; 87:071301. [PMID: 11497878 DOI: 10.1103/physrevlett.87.071301] [Citation(s) in RCA: 169] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2001] [Indexed: 05/23/2023]
Abstract
Solar neutrinos from (8)B decay have been detected at the Sudbury Neutrino Observatory via the charged current (CC) reaction on deuterium and the elastic scattering (ES) of electrons. The flux of nu(e)'s is measured by the CC reaction rate to be straight phi(CC)(nu(e)) = 1.75 +/- 0.07(stat)(+0.12)(-0.11)(syst) +/- 0.05(theor) x 10(6) cm(-2) s(-1). Comparison of straight phi(CC)(nu(e)) to the Super-Kamiokande Collaboration's precision value of the flux inferred from the ES reaction yields a 3.3 sigma difference, assuming the systematic uncertainties are normally distributed, providing evidence of an active non- nu(e) component in the solar flux. The total flux of active 8B neutrinos is determined to be 5.44+/-0.99 x 10(6) cm(-2) s(-1).
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Affiliation(s)
- Q R Ahmad
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
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Enomoto R, Iwasaki M, Muramatsu K, Hayashii H, Miyamoto A, Itoh R, Abe K, Abe T, Adachi I, Aoki M, Awa S, Belusevic R, Emi K, Fujii H, Fujii K, Fujii T, Fujimoto J, Fujita K, Fujiwara N, Howell B, Iida N, Ikeda H, Iwasaki H, Kajikawa R, Kato S, Kawabata S, Kichimi H, Kobayashi M, Koltick D, Levine I, Miyabayashi K, Nagai K, Nagira T, Nakano E, Nakabayashi K, Nitoh O, Noguchi S, Ochiai F, Ohnishi Y, Okuno H, Okusawa T, Shimozawa K, Shinohara T, Sugiyama A, Sugiyama N, Suzuki S, Takahashi K, Takahashi T, Takemoto M, Tanimori T, Tauchi T, Teramae F, Teramoto Y, Toomi N, Toyama T, Tsukamoto T, Uno S, Watanabe Y, Yamaguchi A, Yamamoto A, Yamauchi M. Measurement of the D*+/- cross section in two-photon processes. Phys Rev D Part Fields 1994; 50:1879-1883. [PMID: 10017823 DOI: 10.1103/physrevd.50.1879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Abstract
Following the destruction of two trains in the Urals 2000 km east of Moscow, as a consequence of the conflagration caused by an explosion from a leaking natural gas pipeline, 3000 people were injured;* most of them (2200) died* immediately and the others (about 800) were badly burned. At the request of the Soviet Union Government a medical military delegation was sent to give assistance to the injured people. This report describes the treatment given by the delegation to 40 patients with burns of between 40 and 90 per cent TBSA during a period of 10 days. An insight into a Soviet Union Trauma Center is given and the good treatment given by the Soviet colleagues is emphasized.
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Affiliation(s)
- P Benmeir
- Israel Defence Forces (IDF) Medical Corps, Department of Plastic Surgery, Jerusalem
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Klein B, Klein T, Konichezky M, Nyska A, Livini E, Levine I, Zamir R, Kooperman O, Lurie H. The expression of HLA class I antigens in germ cell testicular cancer. Am J Clin Pathol 1990; 93:202-7. [PMID: 2405630 DOI: 10.1093/ajcp/93.2.202] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The expression of HLA class I antigens in testicular germ cell tumors (TGCTs) was studied by the immunoperoxidase technique. In the normal testicle, the interstitial cells of Leydig as well as most of the germ cells were significantly stained. In typical seminoma, 75% of the tumor cells in stage I and 30% in stage II were stained. In embryonal cell carcinoma, 25% of the cases in stage I and less than 10% of those in stage II were stained. Mature teratoma was stained in most of the cases, whereas in malignant teratoma only 35% of the cases showed some staining of the tumor cells. In mixed tumors each component displayed its characteristic staining pattern. The expression of class I antigens on tumor cells is required for immune recognition and lysis of the tumor by cytotoxic T-cells. The reduced expression of class I antigens that was related to histologic characteristics and stage suggests that some testicular tumors may escape immune surveillance and become biologically more aggressive.
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Affiliation(s)
- B Klein
- Department of Oncology, Beilinson Medical Center, Petah Tikva, Israel
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21
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Errera P, Levine I. Teaching residents to recognize administrative issues in clinical situations. Psychiatr Q 1990; 61:87-95. [PMID: 2388963 DOI: 10.1007/bf01064909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- P Errera
- Yale University School of Medicine
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22
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Tulchinsky TH, Levine I, Abrookin R, Halperin R. Waterborne enteric disease outbreaks in Israel, 1976-1985. Isr J Med Sci 1988; 24:644-51. [PMID: 3215756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Waterborne enteric disease remains a major public health problem in developing countries, as well as in developed countries, such that the World Health Organization declared 1981-90 the International Water Decade. Israeli experience with waterborne disease outbreaks in the decade 1976-85 is reviewed. Community water systems accounted for 52 outbreaks, with 25 occurring between 1976 and 1980 and 27 between 1981 and 1985. Total cases reported in these outbreaks were 7,681 and 10,880 respectively. In the latter period, reported cases resulting from these outbreaks constituted a very high percentage of the total reported cases of diarrheal disease in the country. The waterborne disease outbreaks were mostly due to secondary contamination of water systems due to human error and poor maintenance. In comparison with the United States, Israel experienced 18.7 times as many community waterborne disease outbreaks per capita. The need for routine preventive chlorination, and filtration on a selective basis, of community drinking water systems is strongly indicated, as recommended in current United States and World Health Organization guidelines in order to improve this grossly substandard aspect of Israeli public health.
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Affiliation(s)
- T H Tulchinsky
- Personal and Community Preventive Health Services, Ministry of Health, Jerusalem, Israel
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Abstract
The long-term inpatient psychiatric hospital treating severely disabled patients is a complex, multifaceted institution in which many diverse people occupying different roles interact in order to accomplish the task of creating a holding environment for the patient. In this paper, we suggest that the primary function of a psychiatric holding environment is the delivery to the patient of the normative services which the nuclear family customarily provides. In order to provide this, the hospital, like the optimal family, holds both by restraining and by facilitating. Through an understanding of the strategic mental mechanisms which severely disturbed patients often employ in order to interact with and comprehend others, particularly empathy and projective identification, we may delineate more refined treatment strategies. Principles concerning the dynamics of small and large groups, patient-staff interactions, the treatment of so-called "hopeless" and negative therapeutic reaction patients, and supervision follow from these conceptualizations. In all of our explication, our perspective is guided by a systems framework but finds concrete expression in an object relational viewpoint.
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24
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Levine I. The image and the reality. Machismo and the male nurse. Nurs Times 1983; 79:50-51. [PMID: 6553278] [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: 05/21/2023]
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25
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Levine I. The cost-conscious physician. Cost Containment 1982; 4:3-6. [PMID: 10255107] [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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26
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Abstract
The use of sensory integrative techniques with a group of chronic schizophrenic patients is described through the process of conducting a pilot study at the Douglas Hospital Center of Montreal in 1975. The purpose of the study was to determine whether stimulating the sensory integrative processes of the central nervous system would effect any behavioral changes in non-paranoid schizophrenics. Based on the theory of Lorna Jean King, the paper delineates the plan of the study, the testing battery developed for evaluating patients, and the program of activities utilized during the project. Results of the study and a critique of the methods employed are also included.
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27
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Levine I. Practical problems in fulfilling manpower health needs of an urban community. Mil Med 1969; 134:393-408. [PMID: 4977356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Levine I, Flief A, Sansur M, Wroblewski F. Clinical implications of lactic dehydrogenase activity in sputum. JAMA 1969; 207:2436-7. [PMID: 5818448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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29
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Levine I, Geller S. Diagnosis of primary lung cancer in the aged patient. J Lancet 1967; 87:97-101. [PMID: 6042093] [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: 05/21/2023]
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Kaufman J, Levine I. Roentgenologic Changes in the Transverse Colon in Peritoneal Tuberculosis. Radiology 1935. [DOI: 10.1148/24.2.233] [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: 11/11/2022]
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