The CHOOZ experiment has measured the antineutrino flux at about 1 km from two nuclear reactors to search for possible <(nu)over bar>(e)--><(nu)over bar>(x) oscillations with mass-squared differences as low as 10(-3) eV(2) for full mixing. We show that the analysis of the similar to 2700 <(nu)over bar>(e) events, collected by our liquid scintillation detector, locates the antineutrino source within a cone of half-aperture approximate to 18 degrees at the 68% C.L. We discuss the implications of this result for locating a supernova explosion.

Determination of neutrino incoming direction in the CHOOZ experiment and its application to supernova explosion location by scintillator detectors

CEI, FABRIZIO;NICOLO', DONATO;
2000

Abstract

The CHOOZ experiment has measured the antineutrino flux at about 1 km from two nuclear reactors to search for possible <(nu)over bar>(e)--><(nu)over bar>(x) oscillations with mass-squared differences as low as 10(-3) eV(2) for full mixing. We show that the analysis of the similar to 2700 <(nu)over bar>(e) events, collected by our liquid scintillation detector, locates the antineutrino source within a cone of half-aperture approximate to 18 degrees at the 68% C.L. We discuss the implications of this result for locating a supernova explosion.
Apollonio, M; Baldini, A; Bemporad, C; Caffau, E; Cei, Fabrizio; Declais, Y; de Kerret, H; Dieterle, B; Etenko, A; Foresti, L; George, J; Giannini, G; Grassi, M; Kozlov, Y; Kropp, W; Kryn, D; Laiman, M; Lane, Ce; Lefievre, B; Machulin, I; Martemyanov, A; Martemyanov, V; Mikaelyan, L; Nicolo', Donato; Obolensky, M; Pazzi, R; Pieri, G; Price, L; Riley, S; Reeder, R; Sabelnikov, A; Santin, G; Skorokhvatov, M; Sobel, H; Steele, J; Steinberg, R; Sukhotin, S; Tomshaw, S; Veron, D; Vyrodov, V.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/170749
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