The observation of up-going charged particles produced by high energy muons in underground detectors

An experimental study of the production of up-going charged particles in inelastic interactions of down-going underground muons is reported, using data obtained from the MACRO detector at the Gran Sasso Laboratory. In a sample of 12.2 x 10(6) single muons, corresponding to a detector lifetime of 1.55y, 243 events are observed having an up-going particle associated with a down-going muon. These events are analysed to determine the range and emission angle distributions of the up-going particle, corrected for detection and reconstruction efficiency. Measurements of the muon neutrino flux by underground detectors are often based on the observation of through-going and stopping muons produced in v(mu) interactions in the rock below the detector. Up-going particles produced by an undetected down-going muon are a potential background source in these measurements. The implications of this background for neutrino studies using MACRO are discussed.

Autori:	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, Marcello Cecchini S Cei F Chiarella V Coutu S Cunti G De Benedictis L De Cataldo G Dekhissi H De Marzo C De Mitri I De Vincenzi M Di Credico A Erriquez O Favuzzi C Forti C Fusco P Giacomelli G Giannini G Giglietto, Nicola Grassi M Gray L Grillo A Guarino F Guarnaccia P Gustavino C Habig A Hanson K Hawthorne A Heinz R Iarocci E Katsavounidis E Kearns E 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 Nolty R Okada C Orth C Osteria G Palamara O Patera V Patrizi L Pazzi R Peck CW Petrera S Pistilli P Popa V Pugliese V Raino A Reynoldson J Ronga F Rubizzo U Sanzgiri A Satriano C Satta L Scapparone E Scholberg K Sciubba A Serra Lugares P Severi M Sioli M Sitta M Spinelli P Spinetti M Spurio M Steinberg R Stone JL Sulak LR Surdo A Tarle G Togo V Walter CW Webb R. mostra contributor esterni nascondi contributor esterni
Titolo:	The observation of up-going charged particles produced by high energy muons in underground detectors
Rivista:	ASTROPARTICLE PHYSICS
Data di pubblicazione:	1998
Digital Object Identifier (DOI):	http://dx.doi.org/10.1016/S0927-6505(98)00010-3
Appare nelle tipologie:	1.1 Articolo in rivista

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http://hdl.handle.net/11589/1141

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