Measurement of the atmospheric muon spectrum from 20 to 300 GeV

Measurement of the atmospheric muon spectrum from 20 to 300 GeV

The absolute muon flux between 20 GeV and 300 GeV is measured with the L3 magnetic muon spectrometer for zenith angles ranging from 0 degree to 58 degrees. Due to the large exposure of about 150 m2 sr d, and the excellent momentum resolution of the L3 muon chambers, a precision of 2.3% at 150 GeV in...

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Veröffentlicht in:Physics letters. B 2004, Vol.598, p.15-32
Hauptverfasser: Achard, P., Adriani, O., Aguilar-Benitez, M., Vanden Akker, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M G., Anderhub, H., Andreev, V P., Anselmo, F., Arefev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, G., Baksay, L., Bahr, J., Baldew, S V., Banerjee, S., Banerjee, Sw, Barczyk, A., Barillere, R., Bartalini, P., Basile, M., Batalova, N., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B L., Biasini, M., Biglietti, M., Biland, A., Blaising, J J., Blyth, S C., Bobbink, G J., Boehm, A., Boldizsar, L., Borgia, B., Bottai, S., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J G., Brochu, F., Burger, J D., Burger, W J., Cai, X D., Capell, M., Cara Romeo, G., Carlino, G., Cartacci, A., Casaus, J., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Chamizo-Llatas, M., Chiarusi, T., Chang, y H., Chemarin, M., Chen, A., Chen, G., Chen, G M., Chen, H F., Chen, H S., Chiefari, G., Cifarelli, L., Cindolo, F., Clare, I., Clare, R., Coignet, G., Colino, N., Costantini, S., de La Cruz, B., Cucciarelli, S., van Dalen, J A., de Asmundis, R., Deglon, P., Debreczeni, J., Degre, A., Dehmelt, K., Deiters, K., Della Volpe, D., Delmeire, E., Denes, P., de Notaristefani, F., de Salvo, A., Diemoz, M., Dierckxsens, M., Ding, L K.
Format: Artikel
Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:The absolute muon flux between 20 GeV and 300 GeV is measured with the L3 magnetic muon spectrometer for zenith angles ranging from 0 degree to 58 degrees. Due to the large exposure of about 150 m2 sr d, and the excellent momentum resolution of the L3 muon chambers, a precision of 2.3% at 150 GeV in the vertical direction is achieved. The ratio of positive to negative muons is studied between 20 GeV and 500 GeV, and the average vertical muon charge ratio is found to be 1.285 +- 0.003 (stat.)+- 0.019 (syst.).
ISSN:0370-2693
DOI:10.1016/j.physletb.2004.08.003