Reactor (ν)over-bare disappearance in the Double Chooz experiment

被引：285

作者：

Abe, Y. ^{[1
]}

Aberle, C. ^{[28
]}

dos Anjos, J. C. ^{[12
]}

Barriere, J. C. ^{[22
]}

Bergevin, M. ^{[16
]}

Bernstein, A. ^{[23
]}

Bezerra, T. J. C. ^{[35
]}

Bezrukhov, L. ^{[21
]}

Blucher, E. ^{[13
]}

Bowden, N. S. ^{[23
]}

Buck, C. ^{[28
]}

Busenitz, J. ^{[9
]}

Cabrera, A. ^{[11
]}

Caden, E. ^{[17
]}

Camilleri, L. ^{[15
]}

Carr, R. ^{[15
]}

Cerrada, M. ^{[14
]}

Chang, P. -J. ^{[24
]}

Chimenti, P. ^{[4
]}

Classen, T. ^{[16
,23
]}

Collin, A. P. ^{[22
]}

Conover, E. ^{[13
]}

Conrad, J. M. ^{[27
]}

Crespo-Anadon, J. I. ^{[14
]}

Crum, K. ^{[13
]}

Cucoanes, A. ^{[22
,32
]}

D'Agostino, M. V. ^{[10
]}

Damon, E. ^{[17
]}

Dawson, J. V. ^{[7
,11
]}

Dazeley, S. ^{[23
]}

Dietrich, D. ^{[3
]}

Djurcic, Z. ^{[10
]}

Dracos, M. ^{[31
]}

Durand, V. ^{[11
,22
]}

Ebert, J. ^{[18
]}

Efremenko, Y. ^{[34
]}

Elnimr, M. ^{[32
]}

Etenko, A. ^{[26
]}

Fallot, M. ^{[32
]}

Fechner, M. ^{[22
]}

von Feilitzsch, F. ^{[33
]}

Felde, J. ^{[16
]}

Franco, D. ^{[11
]}

Franke, A. J. ^{[15
]}

Franke, M. ^{[33
]}

Furuta, H. ^{[35
]}

Gama, R. ^{[12
]}

Gil-Botella, I. ^{[14
]}

Giot, L. ^{[32
]}

Goeger-Neff, M. ^{[33
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[2] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan

[3] Univ Tubingen, Kepler Ctr Astro & Particle Phys, D-72076 Tubingen, Germany

[4] Univ Fed Abc, Santo Andre, SP, Brazil

[5] Univ Estadual Campinas, UNICAMP, Campinas, SP, Brazil

[6] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA 24061 USA

[7] Lab Neutrino Champagne Ardenne, F-08600 Rancennes, France

[8] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[9] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA

[10] Argonne Natl Lab, Argonne, IL 60439 USA

[11] Univ Paris Diderot, APC, CNRS IN2P3, CEA IRFU,Observ Paris, F-75205 Paris 13, France

[12] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ, Brazil

[13] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[14] CIEMAT, E-28040 Madrid, Spain

[15] Columbia Univ, New York, NY 10027 USA

[16] Univ Calif Davis, Davis, CA 95616 USA

[17] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA

[18] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

[19] Hiroshima Inst Technol, Hiroshima 7315193, Japan

[20] IIT, Dept Phys, Chicago, IL 60616 USA

[21] Russian Acad Sci, Inst Nucl Res, Moscow 117901, Russia

[22] IRFU, Commissariat Energie Atom & Energies Alternat, Ctr Saclay, F-91191 Gif Sur Yvette, France

[23] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[24] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA

[25] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan

[26] NRC Kurchatov Inst, Moscow 123182, Russia

[27] MIT, Cambridge, MA 02139 USA

[28] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[29] Niigata Univ, Dept Phys, Niigata 9502181, Japan

[30] Univ Notre Dame, Notre Dame, IN 46556 USA

[31] Univ Strasbourg, IPHC, CNRS IN2P3, F-67037 Strasbourg, France

[32] Univ Nantes, SUBATECH, CNRS IN2P3, Ecole Mines Nantes, F-44307 Nantes, France

[33] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany

[34] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[35] Tohoku Univ, Res Ctr Neutrino Sci, Sendai, Miyagi 9808578, Japan

[36] Tohoku Gakuin Univ, Sendai, Miyagi 9813193, Japan

来源：

PHYSICAL REVIEW D | 2012年 / 86卷 / 05期

基金：

美国国家科学基金会; 俄罗斯基础研究基金会; 巴西圣保罗研究基金会; 日本学术振兴会;

关键词：

NEUTRON FISSION-PRODUCTS; SPECTRA; PU-239;

D O I：

10.1103/PhysRevD.86.052008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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).

引用

页数：21

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