First real time detection of 7Be solar neutrinos by Borexino

Arpesella, C.; Bellini, G.; Benziger, J.; Bonetti, S.; Caccianiga, B.; Calaprice, F.; Dalnoki-Veress, F.; D'Angelo, D.; de Kerret, H.; Derbin, A.; Deutsch, M.; Etenko, A.; Fomenko, K.; Ford, R.; Franco, D.; Freudiger, B.; Galbiati, C.; Gazzana, S.; Giammarchi, M.; Goeger-Neff, M.; Goretti, A.; Grieb, C.; Hardy, S.; Heusser, G.; Ianni, Aldo; Ianni, Andrea; Joyce, M.; Korga, G.; Kryn, D.; Laubenstein, M.; Leung, M.; Litvinovich, E.; Lombardi, P.; Ludhova, L.; Machulin, I.; Manuzio, G.; Martemianov, A.; Masetti, F.; McCarty, K.; Meroni, E.; Miramonti, L.; Misiaszek, M.; Montanari, D.; Monzani, M. E.; Muratova, V.; Niedermeier, L.; Oberauer, L.; Obolensky, M.; Ortica, F.; Pallavicini, M.; Papp, L.; Perasso, L.; Pocar, A.; Raghavan, R. S.; Ranucci, G.; Razeto, A.; Sabelnikov, A.; Salvo, C.; Schönert, S.; Simgen, H.; Smirnov, O.; Skorokhvatov, M.; Sonnenschein, A.; Sotnikov, A.; Sukhotin, S.; Suvorov, Y.; Tarasenkov, V.; Tartaglia, R.; Testera, G.; Vignaud, D.; Vitale, S.; Vogelaar, R. B.; von Feilitzsch, F.; Wojcik, M.; Zaimidoroga, O.; Zavatarelli, S.; Zuzel, G.; Borexino Collaboration *

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First real time detection of ⁷Be solar neutrinos by Borexino

MPS-Authors

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Bellini, G.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Dalnoki-Veress, F.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Franco, D.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Freudiger, B.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Heusser, G.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Laubenstein, M.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Schönert, S.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Simgen, H.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Wojcik, M.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Zuzel, G.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

Arpesella, C., Bellini, G., Benziger, J., Bonetti, S., Caccianiga, B., Calaprice, F., et al. (2008). First real time detection of ⁷Be solar neutrinos by Borexino. Physics Letters B, 658(4), 101-108. Retrieved from http://arxiv.org/abs/0708.2251v2.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-7A91-5

Abstract

This Letter reports a direct measurement of the 7Be solar neutrino signal rate performed with the Borexino low background liquid scintillator detector at the Laboratori Nazionali del Gran Sasso. This is the first real-time spectral measurement of sub-MeV solar neutrinos. The result for 0.862 MeV 7Be neutrinos is 47±7stat±12sys counts/(day 100 ton), consistent with predictions of Standard Solar Models and neutrino oscillations with LMA-MSW parameters.