Indication of reactor ν ̄e disappearance in the double chooz experiment

Y. Abe; C. Aberle; T. Akiri; J. C. Dos Anjos; F. Ardellier; A. F. Barbosa; A. Baxter; M. Bergevin; A. Bernstein; T. J.C. Bezerra; L. Bezrukhov; E. Blucher; M. Bongrand; N. S. Bowden; C. Buck; J. Busenitz; A. Cabrera; E. Caden; L. Camilleri; R. Carr; M. Cerrada; P. J. Chang; P. Chimenti; T. Classen; A. P. Collin; E. Conover; J. M. Conrad; S. Cormon; J. I. Crespo-Anadón; M. Cribier; K. Crum; A. Cucoanes; M. V. D'Agostino; E. Damon; J. V. Dawson; S. Dazeley; M. Dierckxsens; D. Dietrich; Z. Djurcic; M. Dracos; V. Durand; Y. Efremenko; M. Elnimr; Y. Endo; A. Etenko; E. Falk; M. Fallot; M. Fechner; F. Von Feilitzsch; J. Felde; S. M. Fernandes; D. Franco; A. J. Franke; M. Franke; H. Furuta; R. Gama; I. Gil-Botella; L. Giot; M. Göger-Neff; L. F.G. Gonzalez; M. C. Goodman; J. Tm Goon; D. Greiner; B. Guillon; N. Haag; C. Hagner; T. Hara; F. X. Hartmann; J. Hartnell; T. Haruna; J. Haser; A. Hatzikoutelis; T. Hayakawa; M. Hofmann; G. A. Horton-Smith; M. Ishitsuka; J. Jochum; C. Jollet; C. L. Jones; F. Kaether; L. Kalousis; Y. Kamyshkov; D. M. Kaplan; T. Kawasaki; G. Keefer; E. Kemp; H. De Kerret; Y. Kibe; T. Konno; D. Kryn; M. Kuze; T. Lachenmaier; C. E. Lane; C. Langbrandtner; T. Lasserre; A. Letourneau; D. Lhuillier; H. P. Lima; M. Lindner; Y. Liu; J. M. López-Castanõ; J. M. Losecco; B. K. Lubsandorzhiev; S. Lucht; D. McKee; J. Maeda; C. N. Maesano; C. Mariani; J. Maricic; J. Martino; T. Matsubara; G. Mention; A. Meregaglia; T. Miletic; R. Milincic; A. Milzstajn; H. Miyata; D. Motta; Th A. Mueller; Y. Nagasaka; K. Nakajima; P. Novella; M. Obolensky; L. Oberauer; A. Onillon; A. Osborn; I. Ostrovskiy; C. Palomares; S. J.M. Peeters; I. M. Pepe; S. Perasso; P. Perrin; P. Pfahler; A. Porta; W. Potzel; R. Queval; J. Reichenbacher; B. Reinhold; A. Remoto; D. Reyna; M. Röhling; S. Roth; H. A. Rubin; Y. Sakamoto; R. Santorelli; F. Sato; S. Schönert; S. Schoppmann; U. Schwan; T. Schwetz; M. H. Shaevitz; D. Shrestha; J. L. Sida; V. Sinev; M. Skorokhvatov; E. Smith; J. Spitz; A. Stahl; I. Stancu; M. Strait; A. Stüken; F. Suekane; S. Sukhotin; T. Sumiyoshi; Y. Sun; Z. Sun; R. Svoboda; H. Tabata; N. Tamura; K. Terao; A. Tonazzo; M. Toups; H. H. Trinh Thi; C. Veyssiere; S. Wagner; H. Watanabe; B. White; C. Wiebusch; L. Winslow; M. Worcester; M. Wurm; E. Yanovitch; F. Yermia; K. Zbiri; V. Zimmer

doi:10.1103/PhysRevLett.108.131801

Indication of reactor ν _̄e disappearance in the double chooz experiment

Y. Abe
, C. Aberle
, T. Akiri
, J. C. Dos Anjos
, F. Ardellier
, A. F. Barbosa
, A. Baxter
, M. Bergevin
, A. Bernstein
, T. J.C. Bezerra
, L. Bezrukhov
, E. Blucher
, M. Bongrand
, N. S. Bowden
, C. Buck
, J. Busenitz
, A. Cabrera
, E. Caden
, L. Camilleri
, R. Carr

M. Cerrada, P. J. Chang, P. Chimenti, T. Classen, A. P. Collin, E. Conover, J. M. Conrad, S. Cormon, J. I. Crespo-Anadón, M. Cribier, K. Crum, A. Cucoanes, M. V. D'Agostino, E. Damon, J. V. Dawson, S. Dazeley, M. Dierckxsens, D. Dietrich, Z. Djurcic, M. Dracos, V. Durand, Y. Efremenko, M. Elnimr, Y. Endo, A. Etenko, E. Falk, M. Fallot, M. Fechner, F. Von Feilitzsch, J. Felde, S. M. Fernandes, D. Franco, A. J. Franke, M. Franke, H. Furuta, R. Gama, I. Gil-Botella, L. Giot, M. Göger-Neff, L. F.G. Gonzalez, M. C. Goodman, J. Tm Goon, D. Greiner, B. Guillon, N. Haag, C. Hagner, T. Hara, F. X. Hartmann, J. Hartnell, T. Haruna, J. Haser, A. Hatzikoutelis, T. Hayakawa, M. Hofmann, G. A. Horton-Smith, M. Ishitsuka, J. Jochum, C. Jollet, C. L. Jones, F. Kaether, L. Kalousis, Y. Kamyshkov, D. M. Kaplan, T. Kawasaki, G. Keefer, E. Kemp, H. De Kerret, Y. Kibe, T. Konno, D. Kryn, M. Kuze, T. Lachenmaier, C. E. Lane, C. Langbrandtner, T. Lasserre, A. Letourneau, D. Lhuillier, H. P. Lima, M. Lindner, Y. Liu, J. M. López-Castanõ, J. M. Losecco, B. K. Lubsandorzhiev, S. Lucht, D. McKee, J. Maeda, C. N. Maesano, C. Mariani, J. Maricic, J. Martino, T. Matsubara, G. Mention, A. Meregaglia, T. Miletic, R. Milincic, A. Milzstajn, H. Miyata, D. Motta, Th A. Mueller, Y. Nagasaka, K. Nakajima, P. Novella, M. Obolensky, L. Oberauer, A. Onillon, A. Osborn, I. Ostrovskiy, C. Palomares, S. J.M. Peeters, I. M. Pepe, S. Perasso, P. Perrin, P. Pfahler, A. Porta, W. Potzel, R. Queval, J. Reichenbacher, B. Reinhold, A. Remoto, D. Reyna, M. Röhling, S. Roth, H. A. Rubin, Y. Sakamoto, R. Santorelli, F. Sato, S. Schönert, S. Schoppmann, U. Schwan, T. Schwetz, M. H. Shaevitz, D. Shrestha, J. L. Sida, V. Sinev, M. Skorokhvatov, E. Smith, J. Spitz, A. Stahl, I. Stancu, M. Strait, A. Stüken, F. Suekane, S. Sukhotin, T. Sumiyoshi, Y. Sun, Z. Sun, R. Svoboda, H. Tabata, N. Tamura, K. Terao, A. Tonazzo, M. Toups, H. H. Trinh Thi, C. Veyssiere, S. Wagner, H. Watanabe, B. White, C. Wiebusch, L. Winslow, M. Worcester, M. Wurm, E. Yanovitch, F. Yermia, K. Zbiri, V. Zimmer

Tokyo Institute of Technology
Max-Planck-Institut für Kernphysik
Université Paris Diderot
Commissariat A l'Énergie Atomique et Aux Énergies Alternatives, Centre de Saclay, IRFU
Centro Brasileiro de Pesquisas Físicas
University of Sussex
University of California, Davis
Lawrence Livermore National Laboratory
Tohoku University
Institute for Nuclear Research of the Russian Academy of Sciences
University of Chicago
University of Alabama
Drexel University
Columbia University
CIEMAT Energy Department
Kansas State University
UFABC
Massachusetts Institute of Technology
SUBATECH, CNRS/IN2P3, Ecole des Mines de Nantes
Argonne National Laboratory
Laboratoire Neutrino de Champagne Ardenne
University of Tübingen
Universite de Strasbourg
University of Tennessee
Tokyo Metropolitan University
National Research Centre "Kurchatov Institute"
Technical University of Munich
University of Campinas
Universität Hamburg
Kobe University
Niigata University
Illinois Institute of Technology
University of Notre Dame
RWTH Aachen University
Hiroshima Institute of Technology
Tohoku Gakuin University

Research output: Contribution to journal › Article › peer-review

1202 Scopus citations

Abstract

The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0. 040(syst) was obtained in 101 days of running at the Chooz nuclear power plant in France, with two 4.25GW _th reactors. The results were obtained from a single 10m3 fiducial volume detector located 1050 m from the two reactor cores. The reactor antineutrino flux prediction used the Bugey4 flux measurement after correction for differences in core composition. The deficit can be interpreted as an indication of a nonzero value of the still unmeasured neutrino mixing parameter ^sin22θ ₁₃. Analyzing both the rate of the prompt positrons and their energy spectrum, we find ^sin22θ ₁₃=0.086±0.041(stat)±0.030(syst) , or, at 90% C.L., 0.017< ^sin22θ ₁₃<0.16.

Original language	English
Article number	131801
Journal	Physical Review Letters
Volume	108
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.108.131801
State	Published - 28 Mar 2012

Access to Document

10.1103/PhysRevLett.108.131801

Cite this

Abe, Y., Aberle, C., Akiri, T., Dos Anjos, J. C., Ardellier, F., Barbosa, A. F., Baxter, A., Bergevin, M., Bernstein, A., Bezerra, T. J. C., Bezrukhov, L., Blucher, E., Bongrand, M., Bowden, N. S., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, L., ... Zimmer, V. (2012). Indication of reactor ν _̄e disappearance in the double chooz experiment. Physical Review Letters, 108(13), Article 131801. https://doi.org/10.1103/PhysRevLett.108.131801

@article{fe274cea40e94424b8e33d15cde3f539,

title = "Indication of reactor ν{\= }e disappearance in the double chooz experiment",

abstract = "The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0. 040(syst) was obtained in 101 days of running at the Chooz nuclear power plant in France, with two 4.25GW th reactors. The results were obtained from a single 10m3 fiducial volume detector located 1050 m from the two reactor cores. The reactor antineutrino flux prediction used the Bugey4 flux measurement after correction for differences in core composition. The deficit can be interpreted as an indication of a nonzero value of the still unmeasured neutrino mixing parameter sin22θ 13. Analyzing both the rate of the prompt positrons and their energy spectrum, we find sin22θ 13=0.086±0.041(stat)±0.030(syst) , or, at 90\% C.L., 0.017< sin22θ 13<0.16.",

author = "Y. Abe and C. Aberle and T. Akiri and \{Dos Anjos\}, \{J. C.\} and F. Ardellier and Barbosa, \{A. F.\} and A. Baxter and M. Bergevin and A. Bernstein and Bezerra, \{T. J.C.\} and L. Bezrukhov and E. Blucher and M. Bongrand and Bowden, \{N. S.\} and C. Buck and J. Busenitz and A. Cabrera and E. Caden and L. Camilleri and R. Carr and M. Cerrada and Chang, \{P. J.\} and P. Chimenti and T. Classen and Collin, \{A. P.\} and E. Conover and Conrad, \{J. M.\} and S. Cormon and Crespo-Anad{\'o}n, \{J. I.\} and M. Cribier and K. Crum and A. Cucoanes and D'Agostino, \{M. V.\} and E. Damon and Dawson, \{J. V.\} and S. Dazeley and M. Dierckxsens and D. Dietrich and Z. Djurcic and M. Dracos and V. Durand and Y. Efremenko and M. Elnimr and Y. Endo and A. Etenko and E. Falk and M. Fallot and M. Fechner and \{Von Feilitzsch\}, F. and J. Felde and Fernandes, \{S. M.\} and D. Franco and Franke, \{A. J.\} and M. Franke and H. Furuta and R. Gama and I. Gil-Botella and L. Giot and M. G{\"o}ger-Neff and Gonzalez, \{L. F.G.\} and Goodman, \{M. C.\} and Goon, \{J. Tm\} and D. Greiner and B. Guillon and N. Haag and C. Hagner and T. Hara and Hartmann, \{F. X.\} and J. Hartnell and T. Haruna and J. Haser and A. Hatzikoutelis and T. Hayakawa and M. Hofmann and Horton-Smith, \{G. A.\} and M. Ishitsuka and J. Jochum and C. Jollet and Jones, \{C. L.\} and F. Kaether and L. Kalousis and Y. Kamyshkov and Kaplan, \{D. M.\} and T. Kawasaki and G. Keefer and E. Kemp and \{De Kerret\}, H. and Y. Kibe and T. Konno and D. Kryn and M. Kuze and T. Lachenmaier and Lane, \{C. E.\} and C. Langbrandtner and T. Lasserre and A. Letourneau and D. Lhuillier and Lima, \{H. P.\} and M. Lindner and Y. Liu and L{\'o}pez-Castan{\~o}, \{J. M.\} and Losecco, \{J. M.\} and Lubsandorzhiev, \{B. K.\} and S. Lucht and D. McKee and J. Maeda and Maesano, \{C. N.\} and C. Mariani and J. Maricic and J. Martino and T. Matsubara and G. Mention and A. Meregaglia and T. Miletic and R. Milincic and A. Milzstajn and H. Miyata and D. Motta and Mueller, \{Th A.\} and Y. Nagasaka and K. Nakajima and P. Novella and M. Obolensky and L. Oberauer and A. Onillon and A. Osborn and I. Ostrovskiy and C. Palomares and Peeters, \{S. J.M.\} and Pepe, \{I. M.\} and S. Perasso and P. Perrin and P. Pfahler and A. Porta and W. Potzel and R. Queval and J. Reichenbacher and B. Reinhold and A. Remoto and D. Reyna and M. R{\"o}hling and S. Roth and Rubin, \{H. A.\} and Y. Sakamoto and R. Santorelli and F. Sato and S. Sch{\"o}nert and S. Schoppmann and U. Schwan and T. Schwetz and Shaevitz, \{M. H.\} and D. Shrestha and Sida, \{J. L.\} and V. Sinev and M. Skorokhvatov and E. Smith and J. Spitz and A. Stahl and I. Stancu and M. Strait and A. St{\"u}ken and F. Suekane and S. Sukhotin and T. Sumiyoshi and Y. Sun and Z. Sun and R. Svoboda and H. Tabata and N. Tamura and K. Terao and A. Tonazzo and M. Toups and \{Trinh Thi\}, \{H. H.\} and C. Veyssiere and S. Wagner and H. Watanabe and B. White and C. Wiebusch and L. Winslow and M. Worcester and M. Wurm and E. Yanovitch and F. Yermia and K. Zbiri and V. Zimmer",

year = "2012",

month = mar,

day = "28",

doi = "10.1103/PhysRevLett.108.131801",

language = "English",

volume = "108",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

}

Abe, Y, Aberle, C, Akiri, T, Dos Anjos, JC, Ardellier, F, Barbosa, AF, Baxter, A, Bergevin, M, Bernstein, A, Bezerra, TJC, Bezrukhov, L, Blucher, E, Bongrand, M, Bowden, NS, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, PJ, Chimenti, P, Classen, T, Collin, AP, Conover, E, Conrad, JM, Cormon, S, Crespo-Anadón, JI, Cribier, M, Crum, K, Cucoanes, A, D'Agostino, MV, Damon, E, Dawson, JV, Dazeley, S, Dierckxsens, M, Dietrich, D, Djurcic, Z, Dracos, M, Durand, V, Efremenko, Y, Elnimr, M, Endo, Y, Etenko, A, Falk, E, Fallot, M, Fechner, M, Von Feilitzsch, F, Felde, J, Fernandes, SM, Franco, D, Franke, AJ, Franke, M, Furuta, H, Gama, R, Gil-Botella, I, Giot, L, Göger-Neff, M, Gonzalez, LFG, Goodman, MC, Goon, JT, Greiner, D, Guillon, B, Haag, N, Hagner, C, Hara, T, Hartmann, FX, Hartnell, J, Haruna, T, Haser, J, Hatzikoutelis, A, Hayakawa, T, Hofmann, M, Horton-Smith, GA, Ishitsuka, M, Jochum, J, Jollet, C, Jones, CL, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, DM, Kawasaki, T, Keefer, G, Kemp, E, De Kerret, H, Kibe, Y, Konno, T, Kryn, D, Kuze, M, Lachenmaier, T, Lane, CE, Langbrandtner, C, Lasserre, T, Letourneau, A, Lhuillier, D, Lima, HP, Lindner, M, Liu, Y, López-Castanõ, JM, Losecco, JM, Lubsandorzhiev, BK, Lucht, S, McKee, D, Maeda, J, Maesano, CN, Mariani, C, Maricic, J, Martino, J, Matsubara, T, Mention, G, Meregaglia, A, Miletic, T, Milincic, R, Milzstajn, A, Miyata, H, Motta, D, Mueller, TA, Nagasaka, Y, Nakajima, K, Novella, P, Obolensky, M, Oberauer, L, Onillon, A, Osborn, A, Ostrovskiy, I, Palomares, C, Peeters, SJM, Pepe, IM, Perasso, S, Perrin, P, Pfahler, P, Porta, A, Potzel, W, Queval, R, Reichenbacher, J, Reinhold, B, Remoto, A, Reyna, D, Röhling, M, Roth, S, Rubin, HA, Sakamoto, Y, Santorelli, R, Sato, F, Schönert, S, Schoppmann, S, Schwan, U, Schwetz, T, Shaevitz, MH, Shrestha, D, Sida, JL, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Strait, M, Stüken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Sun, Z, Svoboda, R, Tabata, H, Tamura, N, Terao, K, Tonazzo, A, Toups, M, Trinh Thi, HH, Veyssiere, C, Wagner, S, Watanabe, H, White, B, Wiebusch, C, Winslow, L, Worcester, M, Wurm, M, Yanovitch, E, Yermia, F, Zbiri, K & Zimmer, V 2012, 'Indication of reactor ν _̄e disappearance in the double chooz experiment', Physical Review Letters, vol. 108, no. 13, 131801. https://doi.org/10.1103/PhysRevLett.108.131801

TY - JOUR

T1 - Indication of reactor ν ̄e disappearance in the double chooz experiment

AU - Abe, Y.

AU - Aberle, C.

AU - Akiri, T.

AU - Dos Anjos, J. C.

AU - Ardellier, F.

AU - Barbosa, A. F.

AU - Baxter, A.

AU - Bergevin, M.

AU - Bernstein, A.

AU - Bezerra, T. J.C.

AU - Bezrukhov, L.

AU - Blucher, E.

AU - Bongrand, M.

AU - Bowden, N. S.

AU - Buck, C.

AU - Busenitz, J.

AU - Cabrera, A.

AU - Caden, E.

AU - Camilleri, L.

AU - Carr, R.

AU - Cerrada, M.

AU - Chang, P. J.

AU - Chimenti, P.

AU - Classen, T.

AU - Collin, A. P.

AU - Conover, E.

AU - Conrad, J. M.

AU - Cormon, S.

AU - Crespo-Anadón, J. I.

AU - Cribier, M.

AU - Crum, K.

AU - Cucoanes, A.

AU - D'Agostino, M. V.

AU - Damon, E.

AU - Dawson, J. V.

AU - Dazeley, S.

AU - Dierckxsens, M.

AU - Dietrich, D.

AU - Djurcic, Z.

AU - Dracos, M.

AU - Durand, V.

AU - Efremenko, Y.

AU - Elnimr, M.

AU - Endo, Y.

AU - Etenko, A.

AU - Falk, E.

AU - Fallot, M.

AU - Fechner, M.

AU - Von Feilitzsch, F.

AU - Felde, J.

AU - Fernandes, S. M.

AU - Franco, D.

AU - Franke, A. J.

AU - Franke, M.

AU - Furuta, H.

AU - Gama, R.

AU - Gil-Botella, I.

AU - Giot, L.

AU - Göger-Neff, M.

AU - Gonzalez, L. F.G.

AU - Goodman, M. C.

AU - Goon, J. Tm

AU - Greiner, D.

AU - Guillon, B.

AU - Haag, N.

AU - Hagner, C.

AU - Hara, T.

AU - Hartmann, F. X.

AU - Hartnell, J.

AU - Haruna, T.

AU - Haser, J.

AU - Hatzikoutelis, A.

AU - Hayakawa, T.

AU - Hofmann, M.

AU - Horton-Smith, G. A.

AU - Ishitsuka, M.

AU - Jochum, J.

AU - Jollet, C.

AU - Jones, C. L.

AU - Kaether, F.

AU - Kalousis, L.

AU - Kamyshkov, Y.

AU - Kaplan, D. M.

AU - Kawasaki, T.

AU - Keefer, G.

AU - Kemp, E.

AU - De Kerret, H.

AU - Kibe, Y.

AU - Konno, T.

AU - Kryn, D.

AU - Kuze, M.

AU - Lachenmaier, T.

AU - Lane, C. E.

AU - Langbrandtner, C.

AU - Lasserre, T.

AU - Letourneau, A.

AU - Lhuillier, D.

AU - Lima, H. P.

AU - Lindner, M.

AU - Liu, Y.

AU - López-Castanõ, J. M.

AU - Losecco, J. M.

AU - Lubsandorzhiev, B. K.

AU - Lucht, S.

AU - McKee, D.

AU - Maeda, J.

AU - Maesano, C. N.

AU - Mariani, C.

AU - Maricic, J.

AU - Martino, J.

AU - Matsubara, T.

AU - Mention, G.

AU - Meregaglia, A.

AU - Miletic, T.

AU - Milincic, R.

AU - Milzstajn, A.

AU - Miyata, H.

AU - Motta, D.

AU - Mueller, Th A.

AU - Nagasaka, Y.

AU - Nakajima, K.

AU - Novella, P.

AU - Obolensky, M.

AU - Oberauer, L.

AU - Onillon, A.

AU - Osborn, A.

AU - Ostrovskiy, I.

AU - Palomares, C.

AU - Peeters, S. J.M.

AU - Pepe, I. M.

AU - Perasso, S.

AU - Perrin, P.

AU - Pfahler, P.

AU - Porta, A.

AU - Potzel, W.

AU - Queval, R.

AU - Reichenbacher, J.

AU - Reinhold, B.

AU - Remoto, A.

AU - Reyna, D.

AU - Röhling, M.

AU - Roth, S.

AU - Rubin, H. A.

AU - Sakamoto, Y.

AU - Santorelli, R.

AU - Sato, F.

AU - Schönert, S.

AU - Schoppmann, S.

AU - Schwan, U.

AU - Schwetz, T.

AU - Shaevitz, M. H.

AU - Shrestha, D.

AU - Sida, J. L.

AU - Sinev, V.

AU - Skorokhvatov, M.

AU - Smith, E.

AU - Spitz, J.

AU - Stahl, A.

AU - Stancu, I.

AU - Strait, M.

AU - Stüken, A.

AU - Suekane, F.

AU - Sukhotin, S.

AU - Sumiyoshi, T.

AU - Sun, Y.

AU - Sun, Z.

AU - Svoboda, R.

AU - Tabata, H.

AU - Tamura, N.

AU - Terao, K.

AU - Tonazzo, A.

AU - Toups, M.

AU - Trinh Thi, H. H.

AU - Veyssiere, C.

AU - Wagner, S.

AU - Watanabe, H.

AU - White, B.

AU - Wiebusch, C.

AU - Winslow, L.

AU - Worcester, M.

AU - Wurm, M.

AU - Yanovitch, E.

AU - Yermia, F.

AU - Zbiri, K.

AU - Zimmer, V.

PY - 2012/3/28

Y1 - 2012/3/28

N2 - The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0. 040(syst) was obtained in 101 days of running at the Chooz nuclear power plant in France, with two 4.25GW th reactors. The results were obtained from a single 10m3 fiducial volume detector located 1050 m from the two reactor cores. The reactor antineutrino flux prediction used the Bugey4 flux measurement after correction for differences in core composition. The deficit can be interpreted as an indication of a nonzero value of the still unmeasured neutrino mixing parameter sin22θ 13. Analyzing both the rate of the prompt positrons and their energy spectrum, we find sin22θ 13=0.086±0.041(stat)±0.030(syst) , or, at 90% C.L., 0.017< sin22θ 13<0.16.

AB - The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0. 040(syst) was obtained in 101 days of running at the Chooz nuclear power plant in France, with two 4.25GW th reactors. The results were obtained from a single 10m3 fiducial volume detector located 1050 m from the two reactor cores. The reactor antineutrino flux prediction used the Bugey4 flux measurement after correction for differences in core composition. The deficit can be interpreted as an indication of a nonzero value of the still unmeasured neutrino mixing parameter sin22θ 13. Analyzing both the rate of the prompt positrons and their energy spectrum, we find sin22θ 13=0.086±0.041(stat)±0.030(syst) , or, at 90% C.L., 0.017< sin22θ 13<0.16.

UR - https://www.scopus.com/pages/publications/84859327139

U2 - 10.1103/PhysRevLett.108.131801

DO - 10.1103/PhysRevLett.108.131801

M3 - Article

AN - SCOPUS:84859327139

SN - 0031-9007

VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 131801

ER -

Indication of reactor ν _̄e disappearance in the double chooz experiment

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