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Improved measurement of 8B solar neutrinos with 1.5 kt · y of Borexino exposure

Author(s): Agostini, M; Altenmüller, K; Appel, S; Atroshchenko, V; Bagdasarian, Z; et al

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dc.contributor.authorAgostini, M-
dc.contributor.authorAltenmüller, K-
dc.contributor.authorAppel, S-
dc.contributor.authorAtroshchenko, V-
dc.contributor.authorBagdasarian, Z-
dc.contributor.authorBasilico, D-
dc.contributor.authorBellini, G-
dc.contributor.authorBenziger, Jay B.-
dc.contributor.authorBick, D-
dc.contributor.authorBravo, D-
dc.contributor.authorCaccianiga, B-
dc.contributor.authorCalaprice, Frank P.-
dc.contributor.authorCaminata, A-
dc.contributor.authorCavalcante, P-
dc.contributor.authorChepurnov, A-
dc.contributor.authorD’Angelo, D-
dc.contributor.authorDavini, S-
dc.contributor.authorDerbin, A-
dc.contributor.authorDi Giacinto, A-
dc.contributor.authorDi Marcello, V-
dc.contributor.authorDing, XF-
dc.contributor.authorDi Ludovico, A-
dc.contributor.authorDi Noto, L-
dc.contributor.authorDrachnev, I-
dc.contributor.authorFormozov, A-
dc.contributor.authorFranco, D-
dc.contributor.authorGalbiati, Cristiano-
dc.contributor.authorGschwender, M-
dc.contributor.authorGhiano, C-
dc.contributor.authorGiammarchi, M-
dc.contributor.authorGoretti, A-
dc.contributor.authorGromov, M-
dc.contributor.authorGuffanti, D-
dc.contributor.authorHagner, C-
dc.contributor.authorHoudy, T-
dc.contributor.authorHungerford, E-
dc.contributor.authorIanni, Aldo-
dc.contributor.authorIanni, Andrea-
dc.contributor.authorJany, A-
dc.contributor.authorJeschke, D-
dc.contributor.authorKobychev, V-
dc.contributor.authorKorga, G-
dc.contributor.authorKumaran, S-
dc.contributor.authorLachenmaier, T-
dc.contributor.authorLaubenstein, M-
dc.contributor.authorLitvinovich, E-
dc.contributor.authorLombardi, P-
dc.contributor.authorLomskaya, I-
dc.contributor.authorLudhova, L-
dc.contributor.authorLukyanchenko, G-
dc.contributor.authorLukyanchenko, L-
dc.contributor.authorMachulin, I-
dc.contributor.authorMarcocci, S-
dc.contributor.authorMartyn, J-
dc.contributor.authorMeroni, E-
dc.contributor.authorMeyer, M-
dc.contributor.authorMiramonti, L-
dc.contributor.authorMisiaszek, M-
dc.contributor.authorMuratova, V-
dc.contributor.authorNeumair, B-
dc.contributor.authorNieslony, M-
dc.contributor.authorNugmanov, R-
dc.contributor.authorOberauer, L-
dc.contributor.authorOrekhov, V-
dc.contributor.authorOrtica, F-
dc.contributor.authorPallavicini, M-
dc.contributor.authorPapp, L-
dc.contributor.authorPenek, Ö-
dc.contributor.authorPietrofaccia, L-
dc.contributor.authorPilipenko, N-
dc.contributor.authorPocar, A-
dc.contributor.authorRaikov, G-
dc.contributor.authorRanalli, MT-
dc.contributor.authorRanucci, G-
dc.contributor.authorRazeto, A-
dc.contributor.authorRe, A-
dc.contributor.authorRedchuk, M-
dc.contributor.authorRomani, A-
dc.contributor.authorRossi, N-
dc.contributor.authorRottenanger, S-
dc.contributor.authorSchönert, S-
dc.contributor.authorSemenov, D-
dc.contributor.authorSkorokhvatov, M-
dc.contributor.authorSmirnov, O-
dc.contributor.authorSotnikov, A-
dc.contributor.authorSuvorov, Y-
dc.contributor.authorTartaglia, R-
dc.contributor.authorTestera, G-
dc.contributor.authorThurn, J-
dc.contributor.authorUnzhakov, E-
dc.contributor.authorVishneva, A-
dc.contributor.authorVogelaar, RB-
dc.contributor.authorvon Feilitzsch, F-
dc.contributor.authorWojcik, M-
dc.contributor.authorWurm, M-
dc.contributor.authorZavatarelli, S-
dc.contributor.authorZuber, K-
dc.contributor.authorZuzel, G-
dc.identifier.citationAgostini, M, Altenmüller, K, Appel, S, Atroshchenko, V, Bagdasarian, Z, Basilico, D, Bellini, G, Benziger, J, Bick, D, Bravo, D, Caccianiga, B, Calaprice, F, Caminata, A, Cavalcante, P, Chepurnov, A, D’Angelo, D, Davini, S, Derbin, A, Di Giacinto, A, Di Marcello, V, Ding, XF, Di Ludovico, A, Di Noto, L, Drachnev, I, Formozov, A, Franco, D, Galbiati, C, Gschwender, M, Ghiano, C, Giammarchi, M, Goretti, A, Gromov, M, Guffanti, D, Hagner, C, Houdy, T, Hungerford, E, Ianni, Aldo, Ianni, Andrea, Jany, A, Jeschke, D, Kobychev, V, Korga, G, Kumaran, S, Lachenmaier, T, Laubenstein, M, Litvinovich, E, Lombardi, P, Lomskaya, I, Ludhova, L, Lukyanchenko, G, Lukyanchenko, L, Machulin, I, Marcocci, S, Martyn, J, Meroni, E, Meyer, M, Miramonti, L, Misiaszek, M, Muratova, V, Neumair, B, Nieslony, M, Nugmanov, R, Oberauer, L, Orekhov, V, Ortica, F, Pallavicini, M, Papp, L, Penek, Ö, Pietrofaccia, L, Pilipenko, N, Pocar, A, Raikov, G, Ranalli, MT, Ranucci, G, Razeto, A, Re, A, Redchuk, M, 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, RB, von Feilitzsch, F, Wojcik, M, Wurm, M, Zavatarelli, S, Zuber, K, Zuzel, G. (Improved measurement of <mml:math xmlns:mml="" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">B</mml:mi></mml:mrow><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>8</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> solar neutrinos with <mml:math xmlns:mml="" display="inline"><mml:mrow><mml:mn>1.5</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>kt</mml:mi><mml:mo>·</mml:mo><mml:mrow><mml:mi mathvariant="normal">y</mml:mi></mml:mrow></mml:mrow></mml:math> of Borexino exposure. Physical Review D, 101 (6), 10.1103/physrevd.101.062001en_US
dc.description.abstractWe report on an improved measurement of the 8B solar neutrino interaction rate with the Borexino experiment at the Laboratori Nazionali del Gran Sasso. Neutrinos are detected via their elastic scattering on electrons in a large volume of liquid scintillator. The measured rate of scattered electrons above 3 MeV of energy is 0.223þ0.015 −0.016 ðstatÞ þ0.006 −0.006 ðsystÞ cpd=100 t, which corresponds to an observed solar neutrino flux assuming no neutrino flavor conversion of ΦES 8B ¼ 2.57þ0.17 −0.18 ðstatÞ þ0.07 −0.07 ðsystÞ × 10 6 cm−2 s−1. This meas- urement exploits the active volume of the detector in almost its entirety for the first time, and takes advantage of a reduced radioactive background following the 2011 scintillator purification campaign and of novel analysis tools providing a more precise modeling of the background. Additionally, we set a new limit on the interaction rate of solar hep neutrinos, searched via their elastic scattering on electrons as well as their neutral current-mediated inelastic scattering on carbon, 12Cðν; ν0 Þ12C (Eγ ¼ 15.1 MeV).en_US
dc.relation.ispartofPhysical Review Den_US
dc.rightsFinal published version. This is an open access article.en_US
dc.titleImproved measurement of 8B solar neutrinos with 1.5 kt · y of Borexino exposureen_US
dc.typeJournal Articleen_US

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