Skip to main content

Spectroscopy of geoneutrinos from 2056 days of Borexino data

Author(s): Agostini, M; Appel, S; Bellini, G; Benziger, Jay B.; Bick, D; et al

To refer to this page use:
Abstract: We report an improved geoneutrino measurement with Borexino from 2056 days of data taking. The present exposure is (5.5 +/- 0.3) x 10(31) proton x yr. Assuming a chondritic Th/U mass ratio of 3.9, we obtain 23.7(-5.7)(+6.5)(stat)(-0.6)(+0.9)(sys) geoneutrino events. The null observation of geoneutrinos with Borexino alone has a probability of 3.6 x 10(-9) (5.9 sigma). A geoneutrino signal from the mantle is obtained at 98% C.L. The radiogenic heat production for U and Th from the present best-fit result is restricted to the range 23-36 TW, taking into account the uncertainty on the distribution of heat producing elements inside the Earth.
Publication Date: 1-Aug-2015
Electronic Publication Date: 7-Aug-2015
Citation: 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, Fiorentini, G, Fomenko, K, Franco, D, Gabriele, F, Galbiati, C, Ghiano, C, Giammarchi, M, Goeger-Neff, M, Goretti, A, Gromov, M, Hagner, C, Houdy, T, Hungerford, E, Ianni, Aldo, Ianni, Andrea, 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, Mantovani, F, Marcocci, S, Meroni, E, Meyer, M, Miramonti, L, Misiaszek, M, Montuschi, 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, Ricci, B, Romani, A, Roncin, R, Rossi, N, Schoenert, S, Semenov, D, Simgen, H, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Sukhotin, S, Suvorov, Y, Tartaglia, R, Testera, G, Thurn, J, Toropova, M, Unzhakov, E, Vogelaar, RB, von Feilitzsch, F, Wang, H, Weinz, S, Winter, J, Wojcik, M, Wurm, M, Yokley, Z, Zaimidoroga, O, Zavatarelli, S, Zuber, K, Zuzel, G, Collaboration, Borexino. (2015). Spectroscopy of geoneutrinos from 2056 days of Borexino data. PHYSICAL REVIEW D, 92 (10.1103/PhysRevD.92.031101
DOI: doi:10.1103/PhysRevD.92.031101
ISSN: 1550-7998
EISSN: 1550-2368
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW D
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.