Measurement of neutrino flux from the primary proton–proton fusion process in the Sun with Borexino detector

Smirnov, O. Y.; Agostini, M.; Appel, S.; Bellini, G.; Benziger, J.; Bick, D.; Bonfini, G.; Bravo, D.; Caccianiga, B.; Calaprice, F.; Caminata, A.; Cavalcante, P.; Chepurnov, A.; Choi, K.; D'Angelo, D.; Davini, S.; Derbin, A.; Di Noto, L.; Drachnev, I.; Empl, A.; Etenko, A.; Fomenko, K.; Franco, D.; Gabriele, F.; Galbiati, C.; Ghiano, C.; Giammarchi, M.; Goeger-Neff, M.; Goretti, A.; Gromov, M.; Hagner, C.; Hungerford, E.; Ianni, A.; Ianni, A.; Jedrzejczak, K.; Kaiser, M.; Kobychev, V.; Korablev, D.; Korga, G.; Kryn, D.; Laubenstein, M.; Lehnert, B.; Litvinovich, E.; Lombardi, F.; Lombardi, P.; Ludhova, L.; Lukyanchenko, G.; Machulin, I.; Manecki, S.; Maneschg, W.; Marcocci, S.; Meroni, E.; Meyer, M.; Miramonti, L.; Misiaszek, M.; Mosteiro, P.; Muratova, V.; Neumair, B.; Oberauer, L.; Obolensky, M.; Ortica, F.; Otis, K.; Pagani, L.; Pallavicini, M.; Papp, L.; Perasso, L.; Pocar, A.; Ranucci, G.; Razeto, A.; Re, A.; Romani, A.; Roncin, R.; Rossi, N.; Schonert, S.; Semenov, D.; Simgen, H.; Skorokhvatov, M.; Sotnikov, A.; Sukhotin, S.; Suvorov, Y.; Tartaglia, R.; Testera, G.; Thurn, J.; Toropova, M.; Unzhakov, E.; Vogelaar, R. B.; von Feilitzsch, F.; Wang, H.; Weinz, S.; Winter, J.; Wojcik, M.; Wurm, M.; Yokley, Z.; Zaimidoroga, O.; Zavatarelli, S.; Zuber, K.; Zuzel, G.

doi:10.1134/S106377961606023X

Neutrino produced in a chain of nuclear reactions in the Sun starting from the fusion of two protons, for the first time has been detected in a real-time detector in spectrometric mode. The unique properties of the Borexino detector provided an oppurtunity to disentangle pp-neutrino spectrum from the background components. A comparison of the total neutrino flux from the Sun with Solar luminosity in photons provides a test of the stability of the Sun on the 10 5 years time scale, and sets a strong limit on the power production in the unknown energy sources in the Sun of no more than 4% of the total energy production at 90% C.L.

Measurement of neutrino flux from the primary proton–proton fusion process in the Sun with Borexino detector

Smirnov O. Y.;Agostini M.;Appel S.;Bellini G.;Benziger J.;Bick D.;Bonfini G.;Bravo D.;Caccianiga B.;Calaprice F.;Caminata A.;Cavalcante P.;Chepurnov A.;Choi K.;D'Angelo D.;Davini S.;Derbin A.;Di Noto L.;Drachnev I.;Empl A.;Etenko A.;Fomenko K.;Franco D.;Gabriele F.;Galbiati C.;Ghiano C.;Giammarchi M.;Goeger-Neff M.;Goretti A.;Gromov M.;Hagner C.;Hungerford E.;Ianni A.;Ianni A.;Jedrzejczak K.;Kaiser M.;Kobychev V.;Korablev D.;Korga G.;Kryn D.;Laubenstein M.;Lehnert B.;Litvinovich E.;Lombardi F.;Lombardi P.;Ludhova L.;Lukyanchenko G.;Machulin I.;Manecki S.;Maneschg W.;Marcocci S.;Meroni E.;Meyer M.;Miramonti L.;Misiaszek M.;Mosteiro P.;Muratova V.;Neumair B.;Oberauer L.;Obolensky M.;Ortica F.;Otis K.;Pagani L.;Pallavicini M.;Papp L.;Perasso L.;Pocar A.;Ranucci G.;Razeto A.;Re A.;Romani A.;Roncin R.;Rossi N.;Schonert S.;Semenov D.;Simgen H.;Skorokhvatov M.;Sotnikov A.;Sukhotin S.;Suvorov Y.;Tartaglia R.;Testera G.;Thurn J.;Toropova M.;Unzhakov E.;Vogelaar R. B.;von Feilitzsch F.;Wang H.;Weinz S.;Winter J.;Wojcik M.;Wurm M.;Yokley Z.;Zaimidoroga O.;Zavatarelli S.;Zuber K.;Zuzel G.

2016-01-01

Abstract

Neutrino produced in a chain of nuclear reactions in the Sun starting from the fusion of two protons, for the first time has been detected in a real-time detector in spectrometric mode. The unique properties of the Borexino detector provided an oppurtunity to disentangle pp-neutrino spectrum from the background components. A comparison of the total neutrino flux from the Sun with Solar luminosity in photons provides a test of the stability of the Sun on the 10 5 years time scale, and sets a strong limit on the power production in the unknown energy sources in the Sun of no more than 4% of the total energy production at 90% C.L.