학술논문
Search for Signatures of Sterile Neutrinos with Double Chooz
Document Type
Working Paper
Author
The Double Chooz Collaboration; Abrahão, T.; Almazan, H.; Anjos, J. C. dos; Appel, S.; Barriere, J. C.; Bekman, I.; Bezerra, T. J. C.; Bezrukov, L.; Blucher, E.; Brugière, T.; Buck, C.; Busenitz, J.; Cabrera, A.; Cerrada, M.; Chauveau, E.; Chimenti, P.; Corpace, O.; Dawson, J. V.; Djurcic, Z.; Etenko, A.; Furuta, H.; Gil-Botella, I.; Givaudan, A.; Gomez, H.; Gonzalez, L. F. G.; Goodman, M. C.; Hara, T.; Haser, J.; Hellwig, D.; Hourlier, A.; Ishitsuka, M.; Jochum, J.; Jollet, C.; Kale, K.; Kaneda, M.; Karakac, M.; Kawasaki, T.; Kemp, E.; de Kerret, H.; Kryn, D.; Kuze, M.; Lachenmaier, T.; Lane, C. E.; Lasserre, T.; Lastoria, C.; Lhuillier, D.; Lima Jr, H. P.; Lindner, M.; López-Castaño, J. M.; LoSecco, J. M.; Lubsandorzhiev, B.; Maeda, J.; Mariani, C.; Maricic, J.; Martino, J.; Matsubara, T.; Mention, G.; Meregaglia, A.; Miletic, T.; Milincic, R.; Minotti, A.; Navas-Nicolás, D.; Novella, P.; Oberauer, L.; Obolensky, M.; Onillon, A.; Oralbaev, A.; Palomares, C.; Pepe, I. M.; Pronost, G.; Reichenbacher, J.; Reinhold, B.; Schönert, S.; Schoppmann, S.; Scola, L.; Sharankova, R.; Sibille, V.; Sinev, V.; Skorokhvatov, M.; Soldin, P.; Stahl, A.; Stancu, I.; Stokes, L. F. F.; Suekane, F.; Sukhotin, S.; Sumiyoshi, T.; Sun, Y.; Veyssiere, C.; Viaud, B.; Vivier, M.; Wagner, S.; Wiebusch, C.; Yang, G.; Yermia, F.
Source
Eur. Phys. J. C 81, 775 (2021)
Subject
Language
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 \cdot 10^{-3} $ eV$^2 \lesssim \Delta m^2_{41} \lesssim 3\cdot 10^{-1} $ eV$^2$ for mixing angles down to $\sin^2 2\theta_{14} \gtrsim 0.02$. No significant disappearance additionally to the conventional disappearance related to $\theta_{13} $ is observed and correspondingly exclusion bounds on the sterile mixing parameter $\theta_{14} $ as function of $ \Delta m^2_{41} $ are obtained.
Comment: accepted for publication by EPJC
Comment: accepted for publication by EPJC