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Journal Articles Physics Letters B Year : 2014

Background-independent measurement of θ13 in Double Chooz

Y. Abe , J. C. dos Anjos , J. C. Barriere , E. Baussan (1) , I. Bekman , M. Bergevin , T. J. C. Bezerra , L. Bezrukov , E. Blucher , C. Buck , J. Busenitz , A. Cabrera (2) , E. Caden (3) , L. Camilleri , R. Carr , M. Cerrada , P.-J. Chang , E. Chauveau , P. Chimenti , A. P. Collin , E. Conover , J. M. Conrad , J. I. Crespo-Anadón , K. Crum , A. Cucoanes (4) , E. Damon , J.V. Dawson (2) , D. Dietrich (3) , Z. Djurcic , M. Dracos (1) , M. Elnimr , A. Etenko , Muriel Fallot (4) , F. von Feilitzsch , J. Felde , S. M. Fernandes , V. Fischer (5) , D. Franco (3) , M. Franke (3) , H. Furuta , I. Gil-Botella , Lydie Giot , M. Göger-Neff , L. F. G. Gonzalez , L. Goodenough , M. C. Goodman , C. Grant , N. Haag , T. Hara , J. Haser , M. Hofmann , G. A. Horton-Smith , A. Hourlier (3) , M. Ishitsuka (3) , J. Jochum , C. Jollet (1) , F. Kaether , L. N. Kalousis , Y. Kamyshkov , D. M. Kaplan , T. Kawasaki , E. Kemp , H. de Kerret (3) , T. Konno (3) , D. Kryn (3) , M. Kuze (3) , T. Lachenmaier , C. E. Lane , T. Lasserre (3, 5) , A. Letourneau (5) , D. Lhuillier (5) , H. P. Lima , M. Lindner , J. M. López-Castaño , J. M. Losecco , B. K. Lubsandorzhiev , S. Lucht , J. Maeda , C. Mariani , J. Maricic , J. Martino , T. Matsubara , G. Mention (5) , A. Meregaglia (1) , T. Miletic , R. Milincic , A. Minotti , Y. Nagasaka , K. Nakajima , Y. Nikitenko , P. Novella (3) , M. Obolensky (3) , L. Oberauer (3) , A. Onillon (4) , A. Osborn , C. Palomares , I. M. Pepe , S. Perasso (3) , P. Pfahler (3) , Amanda Porta (4) , G. Pronost (4) , J. Reichenbacher , B. Reinhold , M. Röhling , R. Roncin (3) , S. Roth (3) , B. Rybolt , Y. Sakamoto , R. Santorelli , F. Sato , A. C. Schilithz , S. Schönert , S. Schoppmann , M. H. Shaevitz , R. Sharankova , S. Shimojima , V. Sibille (5) , V. Sinev , M. Skorokhvatov , E. Smith , J. Spitz , A. Stahl , I. Stancu , L. F. F. Stokes , M. Strait , A. Stüken , F. Suekane , S. Sukhotin , T. Sumiyoshi , Y. Sun , R. Svoboda , K. Terao , A. Tonazzo (3) , H. H. Trinh Thi (3) , G. Valdiviesso , N. Vassilopoulos (1) , C. Veyssiere (5) , M. Vivier (5) , S. Wagner , H. Watanabe , C. Wiebusch , L. Winslow , M. Wurm , G. Yang , F. Yermia (4) , V. Zimmer
Y. Abe
  • Function : Author
J. C. dos Anjos
  • Function : Author
J. C. Barriere
  • Function : Author
E. Baussan
I. Bekman
  • Function : Author
M. Bergevin
  • Function : Author
T. J. C. Bezerra
  • Function : Author
L. Bezrukov
  • Function : Author
E. Blucher
  • Function : Author
C. Buck
  • Function : Author
J. Busenitz
  • Function : Author
A. Cabrera
L. Camilleri
  • Function : Author
R. Carr
  • Function : Author
M. Cerrada
  • Function : Author
P.-J. Chang
  • Function : Author
E. Chauveau
  • Function : Author
P. Chimenti
  • Function : Author
A. P. Collin
  • Function : Author
E. Conover
  • Function : Author
J. M. Conrad
  • Function : Author
J. I. Crespo-Anadón
  • Function : Author
K. Crum
  • Function : Author
E. Damon
  • Function : Author
J.V. Dawson
Z. Djurcic
  • Function : Author
M. Dracos
M. Elnimr
  • Function : Author
A. Etenko
  • Function : Author
Muriel Fallot
F. von Feilitzsch
  • Function : Author
J. Felde
  • Function : Author
S. M. Fernandes
  • Function : Author
D. Franco
H. Furuta
  • Function : Author
I. Gil-Botella
  • Function : Author
Lydie Giot
M. Göger-Neff
  • Function : Author
L. F. G. Gonzalez
  • Function : Author
L. Goodenough
  • Function : Author
M. C. Goodman
  • Function : Author
C. Grant
  • Function : Author
N. Haag
  • Function : Author
T. Hara
  • Function : Author
J. Haser
  • Function : Author
M. Hofmann
  • Function : Author
G. A. Horton-Smith
  • Function : Author
J. Jochum
  • Function : Author
F. Kaether
  • Function : Author
L. N. Kalousis
  • Function : Author
Y. Kamyshkov
  • Function : Author
D. M. Kaplan
  • Function : Author
T. Kawasaki
  • Function : Author
E. Kemp
  • Function : Author
T. Lachenmaier
  • Function : Author
C. E. Lane
  • Function : Author
H. P. Lima
  • Function : Author
M. Lindner
  • Function : Author
J. M. López-Castaño
  • Function : Author
J. M. Losecco
  • Function : Author
B. K. Lubsandorzhiev
  • Function : Author
S. Lucht
  • Function : Author
J. Maeda
  • Function : Author
C. Mariani
  • Function : Author
J. Maricic
  • Function : Author
J. Martino
  • Function : Author
T. Matsubara
  • Function : Author
T. Miletic
  • Function : Author
R. Milincic
  • Function : Author
A. Minotti
  • Function : Author
Y. Nagasaka
  • Function : Author
K. Nakajima
  • Function : Author
Y. Nikitenko
  • Function : Author
A. Osborn
  • Function : Author
C. Palomares
  • Function : Author
I. M. Pepe
  • Function : Author
Amanda Porta
J. Reichenbacher
  • Function : Author
B. Reinhold
  • Function : Author
M. Röhling
  • Function : Author
B. Rybolt
  • Function : Author
Y. Sakamoto
  • Function : Author
R. Santorelli
F. Sato
  • Function : Author
A. C. Schilithz
  • Function : Author
S. Schönert
  • Function : Author
S. Schoppmann
M. H. Shaevitz
  • Function : Author
R. Sharankova
  • Function : Author
S. Shimojima
  • Function : Author
V. Sinev
  • Function : Author
M. Skorokhvatov
  • Function : Author
E. Smith
  • Function : Author
J. Spitz
  • Function : Author
A. Stahl
  • Function : Author
I. Stancu
  • Function : Author
L. F. F. Stokes
  • Function : Author
M. Strait
  • Function : Author
A. Stüken
  • Function : Author
F. Suekane
  • Function : Author
S. Sukhotin
  • Function : Author
T. Sumiyoshi
  • Function : Author
Y. Sun
R. Svoboda
  • Function : Author
K. Terao
  • Function : Author
G. Valdiviesso
  • Function : Author
S. Wagner
H. Watanabe
  • Function : Author
C. Wiebusch
  • Function : Author
L. Winslow
  • Function : Author
M. Wurm
  • Function : Author
G. Yang
F. Yermia
V. Zimmer
  • Function : Author

Abstract

The oscillation results published by the Double Chooz Collaboration in 2011 and 2012 rely on background models substantiated by reactor-on data. In this analysis, we present a background-model-independent measurement of the mixing angle θ13 by including 7.53 days of reactor-off data. A global fit of the observed antineutrino rates for different reactor power conditions is performed, yielding a measurement of both θ13 and the total background rate. The results on the mixing angle are improved significantly by including the reactor-off data in the fit, as it provides a direct measurement of the total background rate. This reactor rate modulation analysis considers antineutrino candidates with neutron captures on both Gd and H, whose combination yields sin2(2θ13)=0.102±0.028(stat.)±0.033(syst.). The results presented in this study are fully consistent with the ones already published by Double Chooz, achieving a competitive precision. They provide, for the first time, a determination of θ13 that does not depend on a background model.

Dates and versions

in2p3-00935739 , version 1 (24-01-2014)

Identifiers

Cite

Y. Abe, J. C. dos Anjos, J. C. Barriere, E. Baussan, I. Bekman, et al.. Background-independent measurement of θ13 in Double Chooz. Physics Letters B, 2014, 735, pp.51-56. ⟨10.1016/j.physletb.2014.04.045⟩. ⟨in2p3-00935739⟩
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