We present the simultaneous measurement of the interaction rates Rpp, RBe, Rpep of pp, Be7, and pep solar neutrinos performed with a global fit to the Borexino data in an extended energy range (0.19-2.93) MeV with particular attention to details of the analysis methods. This result was obtained by analyzing 1291.51 days of Borexino Phase-II data, collected after an extensive scintillator purification campaign. Using counts per day (cpd)/100 ton as unit, we find Rpp=134±10(stat)-10+6(sys), RBe=48.3±1.1(stat)-0.7+0.4(sys); and RpepHZ=2.43±0.36(stat)-0.22+0.15(sys) assuming the interaction rate RCNO of CNO-cycle (Carbon, Nitrogen, Oxigen) solar neutrinos according to the prediction of the high metallicity standard solar model, and RpepLZ=2.65±0.36(stat)-0.24+0.15(sys) according to that of the low metallicity model. An upper limit RCNO<8.1 cpd/100 ton (95% C.L.) is obtained by setting in the fit a constraint on the ratio Rpp/Rpep (47.7±0.8 cpd/100 ton or 47.5±0.8 cpd/100 ton according to the high or low metallicity hypothesis).

Agostini, M., Altenmuller, K., Appel, S., Atroshchenko, V., Bagdasarian, Z., Basilico, D., et al. (2019). Simultaneous precision spectroscopy of pp, Be 7, and pep solar neutrinos with Borexino Phase-II. PHYSICAL REVIEW D, 100(8) [10.1103/PhysRevD.100.082004].

Simultaneous precision spectroscopy of pp, Be 7, and pep solar neutrinos with Borexino Phase-II

Guffanti D.
Membro del Collaboration Group
;
2019

Abstract

We present the simultaneous measurement of the interaction rates Rpp, RBe, Rpep of pp, Be7, and pep solar neutrinos performed with a global fit to the Borexino data in an extended energy range (0.19-2.93) MeV with particular attention to details of the analysis methods. This result was obtained by analyzing 1291.51 days of Borexino Phase-II data, collected after an extensive scintillator purification campaign. Using counts per day (cpd)/100 ton as unit, we find Rpp=134±10(stat)-10+6(sys), RBe=48.3±1.1(stat)-0.7+0.4(sys); and RpepHZ=2.43±0.36(stat)-0.22+0.15(sys) assuming the interaction rate RCNO of CNO-cycle (Carbon, Nitrogen, Oxigen) solar neutrinos according to the prediction of the high metallicity standard solar model, and RpepLZ=2.65±0.36(stat)-0.24+0.15(sys) according to that of the low metallicity model. An upper limit RCNO<8.1 cpd/100 ton (95% C.L.) is obtained by setting in the fit a constraint on the ratio Rpp/Rpep (47.7±0.8 cpd/100 ton or 47.5±0.8 cpd/100 ton according to the high or low metallicity hypothesis).
Articolo in rivista - Articolo scientifico
Scientifica
Solar neutrinos; pp-chain; Liquid Scintillators; Detectors; Borexino;
English
Guffanti, Daniele Borexino Collaboration
Agostini, M., Altenmuller, K., Appel, S., Atroshchenko, V., Bagdasarian, Z., Basilico, D., et al. (2019). Simultaneous precision spectroscopy of pp, Be 7, and pep solar neutrinos with Borexino Phase-II. PHYSICAL REVIEW D, 100(8) [10.1103/PhysRevD.100.082004].
Agostini, M; Altenmuller, K; Appel, S; Atroshchenko, V; Bagdasarian, Z; Basilico, D; Bellini, G; Benziger, J; Bonfini, G; Bravo, D; Caccianiga, B; Calaprice, F; Caminata, A; Cappelli, L; Caprioli, S; Carlini, M; Cavalcante, P; Cavanna, F; Chepurnov, A; Choi, K; Collica, L; D'Angelo, D; Davini, S; Derbin, A; Ding, X; Di Ludovico, A; Di Noto, L; Drachnev, I; Fomenko, K; Formozov, A; Franco, D; Gabriele, F; Galbiati, C; Gschwender, M; Ghiano, C; Giammarchi, M; Goretti, A; Gromov, M; Guffanti, D; Houdy, T; 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, O; Pietrofaccia, L; Pilipenko, N; Pocar, A; Porcelli, A; Raikov, G; Ranucci, G; Razeto, A; Re, A; Redchuk, M; Romani, A; Rossi, N; Rottenanger, S; Schonert, S; Semenov, D; Skorokhvatov, M; Smirnov, O; Sotnikov, A; Stokes, L; Suvorov, Y; Tartaglia, R; Testera, G; Thurn, J; Unzhakov, E; Villante, F; Vishneva, A; Vogelaar, R; Von Feilitzsch, F; Weinz, S; Wojcik, M; Wurm, M; Zaimidoroga, O; Zavatarelli, S; Zuber, K; Zuzel, G
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/376598
Citazioni
  • Scopus 56
  • ???jsp.display-item.citation.isi??? 49
Social impact