Observation of the shadowing of cosmic rays by the Moon using a deep underground detector - art. no. 012003

Authors
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, F 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 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 Neri, AM 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, D Orth, C Osteria, G Ouchrif, M Palamara, O Patera, V Patrizii, L Pazzi, R Peck, CW Petrera, S Pistilli, P Popa, V Pugliese, V Raino, A Reynoldson, J Ronga, F Rubizzo, U Satriano, C Satta, L Scapparone, E Scholberg, K Sciubba, A Sena-Lugaresi, P Severi, M Sioli, R Sitta, M Spinelli, P Spinetti, M Spurio, M Steinberg, R Stone, JL Sulak, LR Surdo, A Tarle, G Togo, V Ugolotti, D Vakili, M Walter, CW Webb, R
Citation
M. Ambrosio et al., Observation of the shadowing of cosmic rays by the Moon using a deep underground detector - art. no. 012003, PHYS REV D, 5901(1), 1999, pp. 2003
Citations number
13
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
5901
Issue
1
Year of publication
1999
Database
ISI
SICI code
0556-2821(19990101)5901:1<2003:OOTSOC>2.0.ZU;2-A
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 flu x 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 u sed to determine that the angular resolution of the apparatus is 0.9 degree s +/- 0.3 degrees. These results demonstrate MACRO's capabilities as a muon telescope by confirming its absolute pointing ability and quantifying its angular resolution.