New limits on heavy sterile neutrino mixing in B-8 decay obtained with the Borexino detector
Author(s): Bellini, G; Benziger, Jay B.; Bick, D; Bonfini, G; Bravo, D; et al
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http://arks.princeton.edu/ark:/88435/pr1pm95| Abstract: | If heavy neutrinos with mass m(vH) >= 2m(e) are produced in the Sun via the decay B-8 -> Be-8 + e(+) + v(H) in a side branch of the pp chain, they would undergo the observable decay into an electron, a positron and a light neutrino v(H) -> v(L) + e(+) + e(-). In the present work Borexino data are used to set a bound on the existence of such decays. We constrain the mixing of a heavy neutrino with mass 1: 5 MeV <= m(vH) <= 14 MeV to be vertical bar U-eH vertical bar(2) <= (10(-3) - 4 x 10(-6) ), respectively. These are tighter limits on the mixing parameters than obtained in previous experiments at nuclear reactors and accelerators. |
| Publication Date: | 1-Oct-2013 |
| Electronic Publication Date: | 29-Oct-2013 |
| Citation: | Bellini, G, Benziger, J, Bick, D, Bonfini, G, Bravo, D, Avanzini, M Buizza, Caccianiga, B, Cadonati, L, Calaprice, F, Cavalcante, P, Chavarria, A, Chepurnov, A, D Angelo, D, Davini, S, Derbin, A, Drachnev, I, Empl, A, Etenko, A, Fomenko, K, Franco, D, Galbiati, C, Gazzana, S, Ghiano, C, Giammarchi, M, Goeger-Neff, M, Goretti, A, Grandi, L, Hagner, C, Hungerford, E, Ianni, Aldo, Ianni, Andrea, Kobychev, V, Korablev, D, Korga, G, Kryn, D, Laubenstein, M, Lewke, T, Litvinovich, E, Loer, B, Lombardi, F, Lombardi, P, Ludhova, L, Lukyanchenko, G, Machulin, I, Manecki, S, Maneschg, W, Manuzio, G, Meindl, Q, Meroni, E, Miramonti, L, Misiaszek, M, Mosteiro, P, Muratova, V, Oberauer, L, Obolensky, M, Ortica, F, Otis, K, Pallavicini, M, Papp, L, Perasso, L, Perasso, S, Pocar, A, Ranucci, G, Razeto, A, Re, A, Romani, A, Rossi, N, Saldanha, R, Salvo, C, Schoenert, S, Simgen, H, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Sukhotin, S, Suvorov, Y, Tartaglia, R, Testera, G, Vignaud, D, Vogelaar, RB, von Feilitzsch, F, Winter, J, Wojcik, M, Wright, A, Wurm, M, Xu, J, Zaimidoroga, O, Zavatarelli, S, Zuzel, G, Collaboration, Borexino. (2013). New limits on heavy sterile neutrino mixing in B-8 decay obtained with the Borexino detector. PHYSICAL REVIEW D, 88 (10.1103/PhysRevD.88.072010 |
| DOI: | doi:10.1103/PhysRevD.88.072010 |
| 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. |
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