The study of solar neutrinos and of non-standard neutrino interactions with Borexino

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

doi:10.1088/1742-6596/1468/1/012192

Journal Article/Contribution to a conference proceedings

FZJ-2020-01796

The study of solar neutrinos and of non-standard neutrino interactions with Borexino

Agostini, M. ; Altenmüller, K. ; Appel, S. ; Atroshchenko, V. ; Bagdasarian, Z.FZJ* ; 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 Lüdovico, A. ; Di Noto, L. ; Drachnev, I. ; Formozov, A. ; Franco, D. ; Gabriele, F. ; Galbiati, C. ; Gschwender, M. ; Ghiano, C. ; Giammarchi, M. ; Goretti, A. ; Gromov, M. ; Güffanti, D. ; Hagner, C. ; Hungerford, E. ; Ianni, A. ; Ianni, A. ; Jany, A. ; Jeschke, D. ; Kumaran, S.FZJ*RWTH* ; Kobychev, V. ; Korga, G. ; Lachenmaier, T. ; Laubenstein, M. ; Litvinovich, E. ; Lombardi, P. ; Lomskaya, I. ; Ludhova, L.FZJ*RWTH* ; 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.FZJ*RWTH* ; Pietrofaccia, L. ; Pilipenko, N. ; Pocar, A. ; Raikov, G. ; Ranalli, M. T. ; Ranucci, G. ; Razeto, A. ; Re, A. ; Redchuk, M.FZJ*RWTH* ; Romani, A. ; Rossi, N. ; Rottenanger, S. ; Schönert, S. ; Semenov, D. ; Skorokhvatov, M. ; Smirnov, O. ; Sotnikov, A. ; Suvorov, Y. ; 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 and G. Zuzel, K. ; Zavatarelli, S. (Corresponding author)

2020
IOP Publ. Bristol

16th International Conference on Topics in Astroparticle and Underground physics, TAUP2019, Toyama, Japan, 9 Sep 2019 - 13 Sep 2019 Journal of physics / Conference Series 1468(1), 012192 (2020) [10.1088/1742-6596/1468/1/012192]

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Please use a persistent id in citations: http://hdl.handle.net/2128/24870 doi:10.1088/1742-6596/1468/1/012192

Abstract: The Borexino liquid scintillator neutrino observatory has a unique capability toperform high-precision solar neutrino observations thanks to its exceptional radiopurity andgood energy resolution (5% at 1 MeV). A comprehensive study of the pp-chain neutrinos waspresented that includes the direct measurements of 7Be, pp and pep neutrino fluxes with thehighest precision ever achieved (down to 2.8% in the 7Be component), the 8B with the lowestenergy threshold, the best limit on CNO neutrinos and the first Borexino limit on hep neutrinos.These results are important to validate the MSW-LMA oscillation paradigm across the full solarenergy range and to exclude possible Non-Standard neutrino Interactions (NSIs). In particularthe effects of neutrino-flavor-diagonal Neutral-Current (NC) interactions that modify the νeeand ντ e couplings while preserving their chiral and flavor structures, have been investigated. Atdetection, the shape of the electron-recoil spectrum is affected by changes in the νee and ντ ecouplings, quantified by the parameters εL/Re and εL/Rτ . New bounds to all four parameters wereobtained, quite stringent compared to the global ones. In particular, the best constraint to-dateon εLe was achieved. A comprehensive summary of all the recent results on solar neutrinos fromBorexino is reported in the present paper.

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