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Independent determination of the Earth’s orbital parameters with solar neutrinos in Borexino

Author(s): Appel, S; Bagdasarian, Z; Basilico, D; Bellini, G; Benziger, J; et al

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Abstract: Since the beginning of 2012, the Borexino collaboration has been reporting precision measurements of the solar neutrino fluxes, emitted in the proton–proton chain and in the Carbon–Nitrogen–Oxygen cycle. The experimental sensitivity achieved in Phase-II and Phase-III of the Borexino data taking made it possible to detect the annual modulation of the solar neutrino interaction rate due to the eccentricity of Earth’s orbit, with a statistical significance greater than 5𝜎. This is the first precise measurement of the Earth’s orbital parameters based solely on solar neutrinos and an additional signature of the solar origin of the Borexino signal. The complete periodogram of the time series of the Borexino solar neutrino detection rate is also reported, exploring frequencies between one cycle/year and one cycle/day. No other significant modulation frequencies are found. The present results were uniquely made possible by Borexino’s decade-long high-precision solar neutrino detection.
Publication Date:  19
Electronic Publication Date:  19
Citation: Appel, S, Bagdasarian, Z, Basilico, D, Bellini, G, Benziger, J, Biondi, R, Caccianiga, B, Calaprice, F, Caminata, A, Chepurnov, A, D’Angelo, D, Derbin, A, Di Giacinto, A, Di Marcello, V, Ding, XF, Di Ludovico, A, Di Noto, L, Drachnev, I, Franco, D, Galbiati, C, Ghiano, C, Giammarchi, M, Goretti, A, Göttel, AS, Gromov, M, Guffanti, D, Ianni, Aldo, Ianni, Andrea, Jany, A, Kobychev, V, Korga, G, Kumaran, S, Laubenstein, M, Litvinovich, E, Lombardi, P, Lomskaya, I, Ludhova, L, Lukyanchenko, G, Machulin, I, Martyn, J, Meroni, E, Miramonti, L, Misiaszek, M, Muratova, V, Nugmanov, R, Oberauer, L, Orekhov, V, Ortica, F, Pallavicini, M, Pelicci, L, Penek, Ö, Pietrofaccia, L, Pilipenko, N, Pocar, A, Raikov, G, Ranalli, MT, Ranucci, G, Razeto, A, Re, A, Redchuk, M, Rossi, N, Schönert, S, Semenov, D, Settanta, G, Skorokhvatov, M, Singhal, A, Smirnov, O, Sotnikov, A, Tartaglia, R, Testera, G, Unzhakov, E, Vishneva, A, Vogelaar, RB, von Feilitzsch, F, Wojcik, M, Wurm, M, Zavatarelli, S, Zuber, K, Zuzel, G. (2023). Independent determination of the Earth’s orbital parameters with solar neutrinos in Borexino. Astroparticle Physics, 145 (102778 - 102778. doi:10.1016/j.astropartphys.2022.102778
DOI: doi:10.1016/j.astropartphys.2022.102778
ISSN: 0927-6505
Keywords: Solar neutrinos, Solar standard model, Annual modulation, Earth’s orbit parameters, Neutrino day–night effect.
Pages: 102778 - 102778
Language: en
Type of Material: Journal Article
Journal/Proceeding Title: Astroparticle Physics
Version: Author's manuscript

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