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.

The observation of up-going charged particles produced by high energy muons in underground detectors / Ambrosio, M., Antolini, R., Aramo, C., Auriemma, G., Baldini, A., Barbarino, G.c., Barish, B.c., 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., et al.. - In: ASTROPARTICLE PHYSICS. - ISSN 0927-6505. - STAMPA. - 9:2(1998), pp. 105-117. [10.1016/S0927-6505(98)00010-3]

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

CASTELLANO, Marcello;GIGLIETTO, Nicola;
1998

Abstract

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.
1998
The observation of up-going charged particles produced by high energy muons in underground detectors / Ambrosio, M., Antolini, R., Aramo, C., Auriemma, G., Baldini, A., Barbarino, G.c., Barish, B.c., 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., et al.. - In: ASTROPARTICLE PHYSICS. - ISSN 0927-6505. - STAMPA. - 9:2(1998), pp. 105-117. [10.1016/S0927-6505(98)00010-3]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/1141
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