학술논문
Search for signatures of sterile neutrinos with Double Chooz
Document Type
article
Author
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; L. Heuermann; 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 Jr; M. Lindner; J. M. López-Casta no; 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
Source
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-14 (2021)
Subject
Language
English
ISSN
1434-6044
1434-6052
1434-6052
Abstract
Abstract We present a search for signatures of neutrino mixing of electron anti-neutrinos with additional hypothetical sterile neutrino flavors using the Double Chooz experiment. The search is based on data from 5 years of operation of Double Chooz, including 2 years in the two-detector configuration. The analysis is based on a profile likelihood, i.e. comparing the data to the model prediction of disappearance in a data-to-data comparison of the two respective detectors. The analysis is optimized for a model of three active and one sterile neutrino. It is sensitive in the typical mass range $${5 \times 10^{-3}}\,\mathrm{eV}^2 \lesssim \varDelta m^2_{41} \lesssim {3 \times 10^{-1}}\,\mathrm{eV}^2 $$ 5 × 10 - 3 eV 2 ≲ Δ m 41 2 ≲ 3 × 10 - 1 eV 2 for mixing angles down to $$\sin ^2 2\theta _{14} \gtrsim {0.02} $$ sin 2 2 θ 14 ≳ 0.02 . No significant disappearance additionally to the conventional disappearance related to $$\theta _{13} $$ θ 13 is observed and correspondingly exclusion bounds on the sterile mixing parameter $$\theta _{14} $$ θ 14 as a function of $$ \varDelta m^2_{41} $$ Δ m 41 2 are obtained.