Using data collected by the MACRO experiment during the years 1989-1996, we show evidence for the shadow of the Moon in the underground cosmic ray flux with a significance of 3.6 sigma. This detection of the shadowing effect is the first by an underground detector. A maximum-likelihood analysis is used to determine that the angular resolution of the apparatus is 0.9 degrees +/- 0.3 degrees. These results demonstrate MACRO's capabilities as a muon telescope by confirming its absolute pointing ability and quantifying its angular resolution.

Observation of the Shadowing of Cosmic Rays by the Moon using a Deep Underground Detector

CEI, FABRIZIO;NICOLO', DONATO;
1999-01-01

Abstract

Using data collected by the MACRO experiment during the years 1989-1996, we show evidence for the shadow of the Moon in the underground cosmic ray flux with a significance of 3.6 sigma. This detection of the shadowing effect is the first by an underground detector. A maximum-likelihood analysis is used to determine that the angular resolution of the apparatus is 0.9 degrees +/- 0.3 degrees. These results demonstrate MACRO's capabilities as a muon telescope by confirming its absolute pointing ability and quantifying its angular resolution.
1999
Ambrosio, M; Antolini, R; Aramo, C; Auriemma, G; Baldini, A; Barbarino, Gc; Barish, Bc; Battistoni, G; Bellotti, R; Bemporad, C; Bernardini, P; Bilokon, H; Bisi, V; Bloise, C; Bower, C; Bussino, S; Cafagna, F; Calicchio, M; Campana, D; Carboni, M; Castellano, M; Cecchini, S; Cei, Fabrizio; Chiarella, V; Choudhary, Bc; Coutu, S; De Benedictis, L; De Cataldo, G; Dekhissi, H; De Marzo, C; De Mitri, I; Derkaoui, J; De Vincenzi, M; Di Credico, A; Erriquez, O; Favuzzi, C; Forti, C; Fusco, P; Giacomelli, G; Giannini, G; Giglietto, N; Giorgini, M; Grassi, M; Gray, L; Grillo, A; Guarino, F; Guarnaccia, P; Gustavino, C; Habig, A; Hanson, K; Heinz, R; Huang, Y; Iarocci, E; Katsavounidis, E; Kearns, E; Kim, H; Kyriazopoulou, S; Lamanna, E; Lane, C; Levin, Ds; Lipari, P; Longley, Np; Longo, Mj; Maaroufi, F; Mancarella, G; Mandrioli, G; Manzoor, S; Margiotta Neri, A; Marini, A; Martello, D; Marzari Chiesa, A; Mazziotta, Mn; Mazzotta, C; Michael, Dg; Mikheyev, S; Miller, L; Monacelli, P; Montaruli, T; Monteno, M; Mufson, S; Musser, J; Nicolo', Donato; Orth, C; Osteria, G; Ouchrif, M; Palamara, O; Patera, V; Patrizii, L; Pazzi, R; Peck, Cw; Petrera, S; Pistilli, P; Popa, V; Pugliese, V; Rainò, A; Reynoldson, J; Ronga, F; Rubizzo, U; Satriano, C; Satta, L; Scapparone, E; Scholberg, K; Sciubba, A; Serra Lugaresi, P; Severi, M; Sioli, M; Sitta, M; Spinelli, P; Spinetti, M; Spurio, M; Steinberg, R; Stone, L; Sulak, Lr; Surdo, A; Tarlè, G; Togo, V; Ugolotti, D; Vakili, M; Walter, Cw; Webb, R.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/169309
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