Journal of High Energy Physics (Jan 2021)
Reactor rate modulation oscillation analysis with two detectors in Double Chooz
- The Double Chooz collaboration,
- T. Abrahão,
- H. Almazan,
- J. C. dos Anjos,
- S. Appel,
- J. C. Barriere,
- I. Bekman,
- T. J. C. Bezerra,
- L. Bezrukov,
- E. Blucher,
- T. Brugière,
- C. Buck,
- J. Busenitz,
- A. Cabrera,
- M. Cerrada,
- E. Chauveau,
- P. Chimenti,
- O. Corpace,
- J. V. Dawson,
- Z. Djurcic,
- A. Etenko,
- H. Furuta,
- I. Gil-Botella,
- A. Givaudan,
- H. Gomez,
- L. F. G. Gonzalez,
- M. C. Goodman,
- T. Hara,
- J. Haser,
- D. Hellwig,
- A. Hourlier,
- M. Ishitsuka,
- J. Jochum,
- C. Jollet,
- K. Kale,
- M. Kaneda,
- M. Karakac,
- T. Kawasaki,
- E. Kemp,
- H. de Kerret,
- D. Kryn,
- M. Kuze,
- T. Lachenmaier,
- C. E. Lane,
- T. Lasserre,
- C. Lastoria,
- D. Lhuillier,
- H. P. Lima,
- M. Lindner,
- J. M. López-Castaño,
- J. M. LoSecco,
- B. Lubsandorzhiev,
- J. Maeda,
- C. Mariani,
- J. Maricic,
- J. Martino,
- T. Matsubara,
- G. Mention,
- A. Meregaglia,
- T. Miletic,
- R. Milincic,
- A. Minotti,
- D. Navas-Nicolás,
- P. Novella,
- L. Oberauer,
- M. Obolensky,
- A. Onillon,
- A. Oralbaev,
- C. Palomares,
- I. M. Pepe,
- G. Pronost,
- J. Reichenbacher,
- B. Reinhold,
- S. Schönert,
- S. Schoppmann,
- L. Scola,
- R. Sharankova,
- V. Sibille,
- V. Sinev,
- M. Skorokhvatov,
- P. Soldin,
- A. Stahl,
- I. Stancu,
- L. F. F. Stokes,
- F. Suekane,
- S. Sukhotin,
- T. Sumiyoshi,
- Y. Sun,
- C. Veyssiere,
- B. Viaud,
- M. Vivier,
- S. Wagner,
- C. Wiebusch,
- G. Yang,
- F. Yermia
Affiliations
- The Double Chooz collaboration
- T. Abrahão
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- H. Almazan
- Max-Planck-Institut für Kernphysik
- J. C. dos Anjos
- Centro Brasileiro de Pesquisas Físicas
- S. Appel
- Physik Department, Technische Universität München
- J. C. Barriere
- IRFU, CEA, Université Paris-Saclay
- I. Bekman
- III. Physikalisches Institut, RWTH Aachen University
- T. J. C. Bezerra
- Department of Physics and Astronomy, University of Sussex
- L. Bezrukov
- Institute of Nuclear Research of the Russian Academy of Sciences
- E. Blucher
- The Enrico Fermi Institute, The University of Chicago
- T. Brugière
- IPHC, CNRS/IN2P3, Université de Strasbourg
- C. Buck
- Max-Planck-Institut für Kernphysik
- J. Busenitz
- Department of Physics and Astronomy, University of Alabama
- A. Cabrera
- IJC Laboratory, CNRS/IN2P3, Université Paris-Saclay
- M. Cerrada
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, CIEMAT
- E. Chauveau
- Université de Bordeaux, CNRS/IN2P3, CENBG
- P. Chimenti
- Universidade Estadual de Londrina
- O. Corpace
- IRFU, CEA, Université Paris-Saclay
- J. V. Dawson
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- Z. Djurcic
- Argonne National Laboratory
- A. Etenko
- NRC Kurchatov Institute
- H. Furuta
- Research Center for Neutrino Science, Tohoku University
- I. Gil-Botella
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, CIEMAT
- A. Givaudan
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- H. Gomez
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- L. F. G. Gonzalez
- Universidade Estadual de Campinas-UNICAMP
- M. C. Goodman
- Argonne National Laboratory
- T. Hara
- Department of Physics, Kobe University
- J. Haser
- Max-Planck-Institut für Kernphysik
- D. Hellwig
- III. Physikalisches Institut, RWTH Aachen University
- A. Hourlier
- Massachusetts Institute of Technology
- M. Ishitsuka
- Tokyo University of Science
- J. Jochum
- Kepler Center for Astro and Particle Physics, Universität Tübingen
- C. Jollet
- Université de Bordeaux, CNRS/IN2P3, CENBG
- K. Kale
- Université de Bordeaux, CNRS/IN2P3, CENBG
- M. Kaneda
- Department of Physics, Tokyo Institute of Technology
- M. Karakac
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- T. Kawasaki
- Department of Physics, Kitasato University
- E. Kemp
- Universidade Estadual de Campinas-UNICAMP
- H. de Kerret
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- D. Kryn
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- M. Kuze
- Department of Physics, Tokyo Institute of Technology
- T. Lachenmaier
- Kepler Center for Astro and Particle Physics, Universität Tübingen
- C. E. Lane
- Department of Physics, Drexel University
- T. Lasserre
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- C. Lastoria
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, CIEMAT
- D. Lhuillier
- IRFU, CEA, Université Paris-Saclay
- H. P. Lima
- Centro Brasileiro de Pesquisas Físicas
- M. Lindner
- Max-Planck-Institut für Kernphysik
- J. M. López-Castaño
- South Dakota School of Mines & Technology
- J. M. LoSecco
- University of Notre Dame
- B. Lubsandorzhiev
- Institute of Nuclear Research of the Russian Academy of Sciences
- J. Maeda
- Department of Physics, Kobe University
- C. Mariani
- Center for Neutrino Physics, Virginia Tech
- J. Maricic
- Physics & Astronomy Department, University of Hawaii at Manoa
- J. Martino
- SUBATECH, CNRS/IN2P3, Université de Nantes, IMT-Atlantique
- T. Matsubara
- High Energy Accelerator Research Organization (KEK)
- G. Mention
- IRFU, CEA, Université Paris-Saclay
- A. Meregaglia
- Université de Bordeaux, CNRS/IN2P3, CENBG
- T. Miletic
- Physics Department, Arcadia University
- R. Milincic
- Physics & Astronomy Department, University of Hawaii at Manoa
- A. Minotti
- LAPP, CNRS/IN2P3
- D. Navas-Nicolás
- IJC Laboratory, CNRS/IN2P3, Université Paris-Saclay
- P. Novella
- Instituto de Física Corpuscular, IFIC (CSIC/UV)
- L. Oberauer
- Physik Department, Technische Universität München
- M. Obolensky
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- A. Onillon
- IRFU, CEA, Université Paris-Saclay
- A. Oralbaev
- NRC Kurchatov Institute
- C. Palomares
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, CIEMAT
- I. M. Pepe
- Centro Brasileiro de Pesquisas Físicas
- G. Pronost
- Kamioka Observatory, ICRR, University of Tokyo
- J. Reichenbacher
- South Dakota School of Mines & Technology
- B. Reinhold
- Physics & Astronomy Department, University of Hawaii at Manoa
- S. Schönert
- Physik Department, Technische Universität München
- S. Schoppmann
- Max-Planck-Institut für Kernphysik
- L. Scola
- IRFU, CEA, Université Paris-Saclay
- R. Sharankova
- Department of Physics, Tokyo Institute of Technology
- V. Sibille
- Massachusetts Institute of Technology
- V. Sinev
- Institute of Nuclear Research of the Russian Academy of Sciences
- M. Skorokhvatov
- NRC Kurchatov Institute
- P. Soldin
- III. Physikalisches Institut, RWTH Aachen University
- A. Stahl
- III. Physikalisches Institut, RWTH Aachen University
- I. Stancu
- Department of Physics and Astronomy, University of Alabama
- L. F. F. Stokes
- Kepler Center for Astro and Particle Physics, Universität Tübingen
- F. Suekane
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- S. Sukhotin
- NRC Kurchatov Institute
- T. Sumiyoshi
- Department of Physics, Tokyo Metropolitan University
- Y. Sun
- Physics & Astronomy Department, University of Hawaii at Manoa
- C. Veyssiere
- IRFU, CEA, Université Paris-Saclay
- B. Viaud
- SUBATECH, CNRS/IN2P3, Université de Nantes, IMT-Atlantique
- M. Vivier
- IRFU, CEA, Université Paris-Saclay
- S. Wagner
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie
- C. Wiebusch
- III. Physikalisches Institut, RWTH Aachen University
- G. Yang
- State University of New York at Stony Brook
- F. Yermia
- SUBATECH, CNRS/IN2P3, Université de Nantes, IMT-Atlantique
- DOI
- https://doi.org/10.1007/JHEP01(2021)190
- Journal volume & issue
-
Vol. 2021,
no. 1
pp. 1 – 18
Abstract
Abstract A θ 13 oscillation analysis based on the observed antineutrino rates at the Double Chooz far and near detectors for different reactor power conditions is presented. This approach provides a so far unique simultaneous determination of θ 13 and the total background rates without relying on any assumptions on the specific background contributions. The analysis comprises 865 days of data collected in both detectors with at least one reactor in operation. The oscillation results are enhanced by the use of 24.06 days (12.74 days) of reactor-off data in the far (near) detector. The analysis considers the ν ¯ e $$ {\overline{\nu}}_e $$ interactions up to a visible energy of 8.5 MeV, using the events at higher energies to build a cosmogenic background model considering fast-neutrons interactions and 9Li decays. The background-model-independent determination of the mixing angle yields sin2(2θ 13) = 0.094 ± 0.017, being the best-fit total background rates fully consistent with the cosmogenic background model. A second oscillation analysis is also performed constraining the total background rates to the cosmogenic background estimates. While the central value is not significantly modified due to the consistency between the reactor-off data and the background estimates, the addition of the background model reduces the uncertainty on θ 13 to 0.015. Along with the oscillation results, the normalization of the anti-neutrino rate is measured with a precision of 0.86%, reducing the 1.43% uncertainty associated to the expectation.
Keywords
