Department of Physics

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Browsing Department of Physics by Author "Aberle, C."

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    Direct measurement of backgrounds using reactor-off data in Double Chooz
    Abe, Y.; Aberle, C.; dos Anjos, J. C.; Barriere, J. C.; Bergevin, M.; Bernstein, A.; Bezerra, T. J. C.; Bezrukhov, Leonid B.; Blucher, E.; Bowden, N. S.; Buck, C.; Busenitz, J.; Cabrera, A.; Caden, E.; Camilleri, Leslie; Carr, Rachel E.; Cerrada, M.; Chang, P. J.; Chimenti, P.; Classen, T.; Collin, A. P.; Conover, E.; Conrad, Janet M.; Crespo-Anadon, J. I.; Crum, K.; Cucoanes, A. S.; D'Agostino, M. V.; Damon, E.; Dawson, J. V.; Dazeley, S.; Dietrich, D.; Djurcic, Zelimir; Dracos, M.; Durand, V.; Ebert, J.; Efremenko, Y.; Elnimr, M.; Erickson, A.; Etenko, A.; Fallot, M.; Fechner, M.; von Feilitzsch, F.; Felde, J.; Fernandes, S. M.; Fischer, V.; Franco, D.; Franke, A. J.; Franke, M.; Furuta, H.; Gama, R.; Gil-Botella, I.; Giot, L.; Goger-Neff, M.; Gonzalez, L. F. G.; Goodenough, L.; Goodman, M. C.; Goon, J. T. M.; Greiner, D.; Haag, N.; Habib, S.; Hagner, C.; Hara, T.; Hartmann, F. X.; Haser, J.; Hatzikoutelis, A.; Hayakawa, T.; Hofmann, M.; Horton-Smith, Glenn A.; Hourlier, A.; Ishitsuka, M.; Jochum, J.; Jollet, C.; Jones, C. L.; Kaether, F.; Kalousis, L. N.; Kamyshkov, Y.; Kaplan, D. M.; Kawasaki, T.; Keefer, G.; Kemp, E.; de Kerret, H.; Kibe, Y.; Konno, T.; Kryn, D.; Kuze, M.; Lachenmaier, Tobias; Lane, C. E.; Langbrandtner, C.; Lasserre, T.; Letourneau, A.; Lhuillier, D.; Lima, H. P.; Lindner, M.; Lopez-Castano, J. M.; LoSecco, J. M.; Lubsandorzhiev, B. K.; Lucht, S.; McKee, D.; Maeda, J.; Maesano, C. N.; Mariani, Camillo; Maricic, Jelena; Martino, J.; Matsubara, T.; Mention, G.; Meregaglia, A.; Meyer, M.; Miletic, T.; Milincic, R.; Miyata, H.; Mueller, T. A.; Nagasaka, Y.; Nakajima, K.; Novella, P.; Obolensky, M.; Oberauer, L.; Onillon, A.; Osborn, A.; Ostrovskiy, I.; Palomares, C.; Pepe, I. M.; Perasso, S.; Perrin, P.; Pfahler, P.; Porta, A.; Potzel, W.; Pronost, G.; Reichenbacher, J.; Reinhold, B.; Remoto, A.; Roehling, M.; Roncin, R.; Roth, S.; Rybolt, B.; Sakamoto, Y.; Santorelli, R.; Sato, F.; Schoenert, S.; Schoppmann, S.; Schwetz, T.; Shaevitz, Marjorie Hansen; Shimojima, S.; Shrestha, D.; Sida, J. L.; Sinev, V.; Skorokhvatov, Mikhail D.; Smith, E.; Spitz, Joshua; Stahl, A.; Stancu, Ion; Stokes, Lee F. F.; Strait, M.; Stuken, A.; Suekane, F.; Sukhotin, S.; Sumiyoshi, T.; Sun, Y.; Svoboda, R.; Terao, K.; Tonazzo, A.; Toups, M.; Thi, H. H. T.; Valdiviesso, G. A.; Veyssiere, C.; Wagner, S.; Watanabe, H.; White, B.; Wiebusch, C.; Winslow, L.; Worcester, M.; Wurm, M.; Yermia, F.; Zimmer, V.; Double Chooz, Collaboration (American Physical Society, 2013-01-08)
    Double Chooz is unique among modern reactor-based neutrino experiments studying (nu) over bar (e) disappearance in that data can be collected with all reactors off. In this paper, we present data from 7.53 days of reactor-off running. Applying the same selection criteria as used in the Double Chooz reactor-on oscillation analysis, a measured background rate of 1.0 +/- 0.4 events/day is obtained. The background model for accidentals, cosmogenic beta-n-emitting isotopes, fast neutrons from cosmic muons, and stopped-mu decays used in the oscillation analysis is demonstrated to be correct within the uncertainties. Kinematic distributions of the events, which are dominantly cosmic-ray-produced correlated-background events, are provided. The background rates are scaled to the shielding depths of two other reactor-based oscillation experiments, Daya Bay and RENO.
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    The Double Chooz antineutrino detectors
    de Kerret, H.; Abe, Y.; Aberle, C.; Abrahão, T.; Ahijado, J. M.; Akiri, T.; Alarcón, J. M.; Alba, J.; Almazan, H.; dos Anjos, J. C.; Appel, S.; Ardellier, F.; Barabanov, I.; Barriere, J. C.; Baussan, E.; Baxter, A.; Bekman, I.; Bergevin, M.; Bernstein, A.; Bertoli, W.; Bezerra, T. J. C.; Bezrukov, L.; Blanco, C.; Bleurvacq, N.; Blucher, E.; Bonet, H.; Bongrand, M.; Bowden, N. S.; Brugière, T.; Buck, C.; Avanzini, M. B.; Busenitz, J.; Cabrera, A.; Caden, E.; Calvo, E.; Camilleri, L.; Carr, R.; Cazaux, S.; Cela, J. M.; Cerrada, M.; Chang, P. J.; Charon, P.; Chauveau, E.; Chimenti, P.; Classen, T.; Collin, A. P.; Conover, E.; Conrad, J. M.; Cormon, S.; Corpace, O.; Courty, B.; Crespo-Anadón, J. I.; Cribier, M.; Crum, K.; Cuadrado, S.; Cucoanes, A.; D’Agostino, M.; Damon, E.; Dawson, J. V.; Dazeley, S.; Dierckxsens, M.; Dietrich, D.; Djurcic, Z.; Dorigo, F.; Dracos, M.; Durand, V.; Efremeko, Y.; Elnimr, M.; Etenko, A.; Falk, E.; Fallot, M.; Fechner, M.; Felde, J.; Fernandes, S. M.; Fernández-Bedoya, C.; Francia, D.; Franco, D.; Fischer, V.; Franke, A. J.; Franke, M.; Furuta, H.; Garcia, F.; Garcia, J.; Gil-Botella, I.; Giot, L.; Givaudan, A.; Göger-Neff, M.; Gomez, H.; Gonzalez, L. F. G.; Goodenough, L.; Goodman, M. C.; Goon, J.; Gramlich, B.; Greiner, D.; Guertin, A.; Guillon, B.; Habib, S. M.; Haddad, Y.; Hara, T.; Hartmann, F. X.; Hartnell, J.; Haser, J.; Hatzikoutelis, A.; Hellwig, D.; Hervé, S.; Hofacker, R.; Horton-Smith, G.; Hourlier, A.; Ishitsuka, M.; Jänner, K.; Jiménez, S.; Jochum, J.; Jollet, C.; Kaether, F.; Kale, K.; Kalousis, L.; Kamyshkov, Y.; Kaneda, M.; Kaplan, D. M.; Karakac, M.; Kawasaki, T.; Kemp, E.; Kibe, Y.; Kirchner, T.; Konno, T.; Kryn, D.; Kutter, T.; Kuze, M.; Lachenmaier, T.; Lane, C. E.; Langbrandtner, C.; Lasserre, T.; Lastoria, C.; Latron, L.; Leonardo, C.; Letourneau, A.; Lhuillier, D.; Lima, H. P.; Lindner, M.; López-Castaño, J. M.; LoSecco, J. M.; Lubsandorzhiev, B.; Lucht, S.; Maeda, J.; Maesano, C. N.; Mariani, Camillo; Maricic, J.; Marie, F.; Martinez, J. J.; Martino, J.; Matsubara, T.; McKee, D.; Meigner, F.; Mention, G.; Meregaglia, A.; Meyer, J. P.; Miletic, T.; Milincic, R.; Millot, J. F.; Minotti, A.; Mirones, V.; Miyata, H.; Mueller, Th. A.; Nagasaka, Y.; Nakajima, K.; Navas-Nicolás, D.; Nikitenko, Y.; Novella, P.; Oberauer, L.; Obolensky, M.; Onillon, A.; Oralbaev, A.; Ostrovskiy, I.; Palomares, C.; Peeters, S. J. M.; Pepe, I. M.; Perasso, S.; Perrin, P.; Pfahler, P.; Porta, A.; Pronost, G.; Puras, J. C.; Quéval, R.; Ramirez, J. L.; Reichenbacher, J.; Reinhold, B.; Reissfelder, M.; Remoto, A.; Reyna, D.; Rodriguez, I.; Röhling, M.; Roncin, R.; Rudolf, N.; Rybolt, B.; Sakamoto, Y.; Santorelli, R.; Sato, F.; Schwan, U.; Schönert, S.; Schoppmann, S.; Scola, L.; Settimo, M.; Shaevitz, M. A.; Sharankova, R.; Sibille, V.; Sida, J.-L.; Sinev, V.; Shrestha, D.; Skorokhvatov, M.; Soldin, P.; Spitz, J.; Stahl, A.; Stancu, I.; Starzynski, P.; Stock, M. R.; Stokes, L. F. F.; Strait, M.; Stüken, A.; Suekane, F.; Sukhotin, S.; Sumiyoshi, T.; Sun, Y.; Sun, Z.; Svoboda, R.; Tabata, H.; Tamura, N.; Terao, K.; Tonazzo, A.; Toral, F.; Toups, M.; Thi, H. T.; Valdivia, F.; Valdiviesso, G.; Vassilopoulos, N.; Verdugo, A.; Veyssiere, C.; Viaud, B.; Vignaud, D.; Vivier, M.; Wagner, S.; Wiebusch, C.; White, B.; Winslow, L.; Worcester, M.; Wurm, M.; Wurtz, J.; Yang, G.; Yáñez, J.; Yermia, F.; Zbiri, K. (2022-09-08)
    This article describes the setup and performance of the near and far detectors in the Double Chooz experiment. The electron antineutrinos of the Chooz nuclear power plant were measured in two identically designed detectors with different average baselines of about 400 m and 1050 m from the two reactor cores. Over many years of data taking the neutrino signals were extracted from interactions in the detectors with the goal of measuring a fundamental parameter in the context of neutrino oscillation, the mixing angle θ13. The central part of the Double Chooz detectors was a main detector comprising four cylindrical volumes filled with organic liquids. From the inside towards the outside there were volumes containing gadolinium-loaded scintillator, gadolinium-free scintillator, a buffer oil and, optically separated, another liquid scintillator acting as veto system. Above this main detector an additional outer veto system using plastic scintillator strips was installed. The technologies developed in Double Chooz were inspiration for several other antineutrino detectors in the field. The detector design allowed implementation of efficient background rejection techniques including use of pulse shape information provided by the data acquisition system. The Double Chooz detectors featured remarkable stability, in particular for the detected photons, as well as high radiopurity of the detector components.
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    First test of Lorentz violation with a reactor-based antineutrino experiment
    Abe, Y.; Aberle, C.; dos Anjos, J. C.; Bergevin, M.; Bernstein, A.; Bezerra, T. J. C.; Bezrukhov, Leonid B.; Blucher, E.; Bowden, N. S.; Buck, C.; Busenitz, J.; Cabrera, A.; Caden, E.; Camilleri, Leslie; Carr, Rachel E.; Cerrada, M.; Chang, P. J.; Chimenti, P.; Classen, T.; Collin, A. P.; Conover, E.; Conrad, Janet M.; Crespo-Anadon, J. I.; Crum, K.; Cucoanes, A. S.; D'Agostino, M. V.; Damon, E.; Dawson, J. V.; Dazeley, S.; Dietrich, D.; Djurcic, Zelimir; Dracos, M.; Durand, V.; Ebert, J.; Efremenko, Y.; Elnimr, M.; Erickson, A.; Fallot, M.; Fechner, M.; von Feilitzsch, F.; Felde, J.; Fischer, V.; Franco, D.; Franke, A. J.; Franke, M.; Furuta, H.; Gama, R.; Gil-Botella, I.; Giot, L.; Goger-Neff, M.; Gonzalez, L. F. G.; Goodman, M. C.; Goon, J. T.; Greiner, D.; Haag, N.; Habib, S.; Hagner, C.; Hara, T.; Hartmann, F. X.; Haser, J.; Hatzikoutelis, A.; Hayakawa, T.; Hofmann, M.; Horton-Smith, Glenn A.; Ishitsuka, M.; Jochum, J.; Jollet, C.; Jones, C. L.; Kaether, F.; Kalousis, L. N.; Kamyshkov, Y.; Kaplan, D. M.; Katori, T.; Kawasaki, T.; Keefer, G.; Kemp, E.; de Kerret, H.; Konno, T.; Kryn, D.; Kuze, M.; Lachenmaier, Tobias; Lane, C. E.; Lasserre, T.; Letourneau, A.; Lhuillier, D.; Lima, H. P.; Lindner, M.; Lopez-Castano, J. M.; LoSecco, J. M.; Lubsandorzhiev, B. K.; Lucht, S.; McKee, D.; Maeda, J.; Maesano, C. N.; Mariani, Camillo; Maricic, Jelena; Martino, J.; Matsubara, T.; Mention, G.; Meregaglia, A.; Meyer, M.; Miletic, T.; Milincic, R.; Miyata, H.; Mueller, T. A.; Nagasaka, Y.; Nakajima, K.; Novella, P.; Obolensky, M.; Oberauer, L.; Onillon, A.; Osborn, A.; Ostrovskiy, I.; Palomares, C.; Pepe, I. M.; Perasso, S.; Perrin, P.; Pfahler, P.; Porta, A.; Potzel, W.; Pronost, G.; Reichenbacher, J.; Reinhold, B.; Remoto, A.; Roehling, M.; Roncin, R.; Roth, S.; Rybolt, B.; Sakamoto, Y.; Santorelli, R.; Sato, F.; Schoenert, S.; Schoppmann, S.; Schwetz, T.; Shaevitz, Marjorie Hansen; Shrestha, D.; Sida, J. L.; Sinev, V.; Skorokhvatov, Mikhail D.; Smith, E.; Spitz, Joshua; Stahl, A.; Stancu, Ion; Stokes, Lee F. F.; Strait, M.; Stuken, A.; Suekane, F.; Sukhotin, S.; Sumiyoshi, T.; Sun, Y.; Terao, K.; Tonazzo, A.; Toups, M.; Thi, H. H. T.; Valdiviesso, G. A.; Veyssiere, C.; Wagner, S.; Watanabe, H.; White, B.; Wiebusch, C.; Winslow, L.; Worcester, M.; Wurm, M.; Yanovitch, E.; Yermia, F.; Zimmer, V.; Double Chooz, Collaboration (American Physical Society, 2012-12-28)
    We present a search for Lorentz violation with 8249 candidate electron antineutrino events taken by the Double Chooz experiment in 227.9 live days of running. This analysis, featuring a search for a sidereal time dependence of the events, is the first test of Lorentz invariance using a reactor-based antineutrino source. No sidereal variation is present in the data and the disappearance results are consistent with sidereal time independent oscillations. Under the Standard-Model Extension, we set the first limits on 14 Lorentz violating coefficients associated with transitions between electron and tau flavor, and set two competitive limits associated with transitions between electron and muon flavor.
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    Reactor (nu)over-bar(e) disappearance in the Double Chooz experiment
    Abe, Y.; Aberle, C.; dos Anjos, J. C.; Barriere, J. C.; Bergevin, M.; Bernstein, A.; Bezerra, T. J. C.; Bezrukhov, Leonid B.; Blucher, E.; Bowden, N. S.; Buck, C.; Busenitz, J.; Cabrera, A.; Caden, E.; Camilleri, Leslie; Carr, Rachel E.; Cerrada, M.; Chang, P. J.; Chimenti, P.; Classen, T.; Collin, A. P.; Conover, E.; Conrad, Janet M.; Crespo-Anadon, J. I.; Crum, K.; Cucoanes, A. S.; D'Agostino, M. V.; Damon, E.; Dawson, J. V.; Dazeley, S.; Dietrich, D.; Djurcic, Zelimir; Dracos, M.; Durand, V.; Ebert, J.; Efremenko, Y.; Elnimr, M.; Etenko, A.; Fallot, M.; Fechner, M.; von Feilitzsch, F.; Felde, J.; Franco, D.; Franke, A. J.; Franke, M.; Furuta, H.; Gama, R.; Gil-Botella, I.; Giot, L.; Goger-Neff, M.; Gonzalez, L. F. G.; Goodman, M. C.; Goon, J. T. M.; Greiner, D.; Haag, N.; Hagner, C.; Hara, T.; Hartmann, F. X.; Haser, J.; Hatzikoutelis, A.; Hayakawa, T.; Hofmann, M.; Horton-Smith, Glenn A.; Hourlier, A.; Ishitsuka, M.; Jochum, J.; Jollet, C.; Jones, C. L.; Kaether, F.; Kalousis, L. N.; Kamyshkov, Y.; Kaplan, D. M.; Kawasaki, T.; Keefer, G.; Kemp, E.; de Kerret, H.; Kibe, Y.; Konno, T.; Kryn, D.; Kuze, M.; Lachenmaier, Tobias; Lane, C. E.; Langbrandtner, C.; Lasserre, T.; Letourneau, A.; Lhuillier, D.; Lima, H. P.; Lindner, M.; Lopez-Castano, J. M.; LoSecco, J. M.; Lubsandorzhiev, B. K.; Lucht, S.; McKee, D.; Maeda, J.; Maesano, C. N.; Mariani, Camillo; Maricic, Jelena; Martino, J.; Matsubara, T.; Mention, G.; Meregaglia, A.; Miletic, T.; Milincic, R.; Miyata, H.; Mueller, T. A.; Nagasaka, Y.; Nakajima, K.; Novella, P.; Obolensky, M.; Oberauer, L.; Onillon, A.; Osborn, A.; Ostrovskiy, I.; Palomares, C.; Pepe, I. M.; Perasso, S.; Perrin, P.; Pfahler, P.; Porta, A.; Potzel, W.; Reichenbacher, J.; Reinhold, B.; Remoto, A.; Roehling, M.; Roncin, R.; Roth, S.; Sakamoto, Y.; Santorelli, R.; Sato, F.; Schoenert, S.; Schoppmann, S.; Schwetz, T.; Shaevitz, Marjorie Hansen; Shimojima, S.; Shrestha, D.; Sida, J. L.; Sinev, V.; Skorokhvatov, Mikhail D.; Smith, E.; Spitz, Joshua; Stahl, A.; Stancu, Ion; Stokes, Lee F. F.; Strait, M.; Stuken, A.; Suekane, F.; Sukhotin, S.; Sumiyoshi, T.; Sun, Y.; Svoboda, R.; Terao, K.; Tonazzo, A.; Toups, M.; Thi, H. H. T.; Valdiviesso, G. A.; Veyssiere, C.; Wagner, S.; Watanabe, H.; White, B.; Wiebusch, C.; Winslow, L.; Worcester, M.; Wurm, M.; Yermia, F.; Zimmer, V.; Double Chooz, Collaboration (American Physical Society, 2012-09-18)
    The Double Chooz experiment has observed 8249 candidate electron antineutrino events in 227.93 live days with 33.71 GW-ton-years (reactor power X detector mass X live time) exposure using a 10.3 m(3) fiducial volume detector located at 1050 m from the reactor cores of the Chooz nuclear power plant in France. The expectation in case of theta(13) = 0 is 8937 events. The deficit is interpreted as evidence of electron antineutrino disappearance. From a rate plus spectral shape analysis we find sin(2)2 theta(13) = 0.109 +/- 0.030(stat) +/- 0.025(syst). The data exclude the no-oscillation hypothesis at 99.8% CL (2.9 sigma).