PoS - Proceedings of Science
Volume 421 - Neutrino Oscillation Workshop (NOW2022) - Session I. Oscillation parameters: present
Update of the results on solar neutrino physics exploiting the most recent Borexino data
N. Rossi*, S. Appel, Z. Bagdasarian, D. Basilico, G. Bellini, J. Benziger, R. Biondi, B. Caccianiga, F. Calaprice, A. Caminata, A. Chepurnov, D. D’Angelo, A. Derbin, A. Di Giacinto, V. Di Marcello, X.F. Ding, A. Di Ludovico, L. Di Noto, I. Drachnev, D. Franco, C. Galbiati, C. Ghiano, M. Giammarchi, A. Goretti, A.S. Goettel, M. Gromov, D. Guffanti, A. Ianni, A. Ianni, A. Jany, V. Kobychev, G. Korga, S. Kumaran, M. Laubenstein, E. Litvinovich, P. Lombardi, I. Lomskaya, L. Ludhova, G. Lukyanchenko, I. Machulin, J. Martyn, E. Meroni, L. Miramonti, M. Misiaszek, V. Muratova, R. Nugmanov, L. Oberauer, V. Orekhov, F. Ortica, M. Pallavicini, L. Pelicci, Ö. Penek, L. Pietrofaccia, N. Pilipenko, A. Pocar, G. Raikov, M.T. Ranalli, G. Ranucci, A. Razeto, A. Re, M. Redchuk, S. Schoenert, D. Semenov, G. Settanta, M. Skorokhvatov, A. Singhal, O. Smirnov, A. Sotnikov, R. Tartaglia, G. Testera, E. Unzhakov, A. Vishneva, R.B. Vogelaar, F. von Feilitzsch, M. Wojcik, M. Wurm, S. Zavatarelli, K. Zuber and G. Zuzelet al. (click to show)
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Pre-published on: December 28, 2022
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Abstract
The BOREXINO experiment concluded the data acquisition at the end of 2021. The analysis of the most recent data has produced an improvement of the precision and the significance of CNO neutrino detection (7$\sigma$) with important implication on the Sun's physical modelling. In addition, exploiting the annual modulation of the full data-set of the combined Phase-II and Phase-III, a 5$\sigma$ measurement of the Earth's orbit eccentricity, using solar neutrinos only, has been recently achieved. The latter result has been made possible by detector longstanding high-precision solar neutrino detection.
DOI: https://doi.org/10.22323/1.421.0009
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