Journal Article

GSI-2022-00384

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Constraints on flavor-diagonal non-standard neutrino interactions from Borexino Phase-II

Agarwalla, S. K. ; Agostini, M. ; Altenmüller, K. ; Appel, S. ; Atroshchenko, V. ; Bagdasarian, Z. ; Basilico, D. ; Bellini, G. ; Benziger, J. ; Bick, D. ; Bonfini, G. ; Bravo, D. ; Caccianiga, B. ; Calaprice, F. ; Caminata, A. ; Cappelli, L. ; Cavalcante, P. ; Cavanna, F. ; Chepurnov, A. ; Choi, K. ; D’Angelo, D. ; Davini, S. ; Derbin, A. ; Di Giacinto, A. ; Di Marcello, V. ; Ding, X. F. ; Di Ludovico, A. ; Di Noto, L. ; Drachnev, I. ; Fomenko, K. ; Formozov, A. (Corresponding author) ; Franco, D. ; Gabriele, F. ; Galbiati, C. ; Gschwender, M. ; Ghiano, C. ; Giammarchi, M. ; Goretti, A. ; Gromov, M. ; Guffanti, D. ; Hagner, C. ; Hungerford, E. ; Ianni, A. ; Ianni, A. ; Jany, A. ; Jeschke, D. ; Kumaran, S. ; Kobychev, V. ; Korga, G. ; Lachenmaier, T. ; Laubenstein, M. ; Litvinovich, E. ; Lombardi, P. ; Ludhova, L. ; Lukyanchenko, G. ; Lukyanchenko, L. ; Machulin, I. ; Manuzio, G. ; Marcocci, S. ; Maricic, J. ; Martyn, J. ; Meroni, E. ; Meyer, M. ; Miramonti, L. ; Misiaszek, M. ; Muratova, V. ; Neumair, B. ; Nieslony, M. ; Oberauer, L. ; Orekhov, V. ; Ortica, F. ; Pallavicini, M. ; Papp, L. ; Penek, Ö. ; Pietrofaccia, L. ; Pilipenko, N. ; Pocar, A. ; Raikov, G. ; Ranucci, G. ; Razeto, A. ; Re, A. ; Redchuk, M. ; Romani, A. ; Rossi, N. ; Rottenanger, S. ; Schönert, S. ; Semenov, D. ; Skorokhvatov, M. ; Smirnov, O. ; Sotnikov, A. ; Sun, C. ; Suvorov, Y. ; Takeuchi, T. ; Tartaglia, R. ; Testera, G. ; Thurn, J. ; Unzhakov, E. ; Vishneva, A. ; Vogelaar, R. B. ; von Feilitzsch, F. ; Wojcik, M. ; Wurm, M. ; Zaimidoroga, O. ; Zavatarelli, S. ; Zuber, K. ; Zuzel, G.

2020
SISSA [Trieste]

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Please use a persistent id in citations: doi:10.1007/JHEP02(2020)038  doi:10.15120/GSI-2022-00384

Report No.: IP/BBSR/2019-2; arXiv:1905.03512

Abstract: The Borexino detector measures solar neutrino fluxes via neutrino-electron elastic scattering. Observed spectra are determined by the solar-ν$_{e}$ survival probability P$_{ee}$(E), and the chiral couplings of the neutrino and electron. Some theories of physics beyond the Standard Model postulate the existence of Non-Standard Interactions (NSI’s) which modify the chiral couplings and P$_{ee}$(E). In this paper, we search for such NSI’s, in particular, flavor-diagonal neutral current interactions that modify the ν$_{e}$e and ν$_{τ}$e couplings using Borexino Phase II data. Standard Solar Model predictions of the solar neutrino fluxes for both high- and low-metallicity assumptions are considered. No indication of new physics is found at the level of sensitivity of the detector and constraints on the parameters of the NSI’s are placed. In addition, with the same dataset the value of sin$^{2}$θ$_{W}$ is obtained with a precision comparable to that achieved in reactor antineutrino experiments[graphic not available: see fulltext].

Keyword(s): neutrino: solar ; neutrino: flux ; neutrino: spectrum ; neutrino: new interaction ; neutrino: detector ; neutrino: coupling ; coupling: chiral ; neutral current: coupling ; neutrino/e: coupling ; neutrino/tau: interaction ; model: solar ; metal: solar ; neutrino electron: elastic scattering ; antineutrino: nuclear reactor ; detector: sensitivity ; Borexino ; new physics ; Weinberg angle: precision measurement ; Neutrino Physics ; Beyond Standard Model

Note: This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Contributing Institute(s):

1. Forschungszentrum Jülich (FZJ)

Research Program(s):

1. 899 - ohne Topic (POF4-899) (POF4-899)

Experiment(s):

1. External experiment at external facility/ no experiment at GSI (POF3; other)

Appears in the scientific report 2021

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; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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