Measurement of the multiple-muon charge ratio in the MINOS Far Detector

Adamson, P. and Anghel, I. and Aurisano, A. and Barr, G. and Bishai, M. and Blake, A. and Bock, G. J. and Bogert, D. and Cao, S. V. and Carroll, T. J. and Castromonte, C. M. and Chen, R. and Childress, S. and Coelho, J. A. B. and Corwin, L. and Cronin-Hennessy, D. and Jong, J. K. de and Rijck, S. de and Devan, A. V. and Devenish, N. E. and Diwan, M. V. and Escobar, C. O. and Evans, J. J. and Falk, E. and Feldman, G. J. and Flanagan, W. and Frohne, M. V. and Gabrielyan, M. and Gallagher, H. R. and Germani, S. and Gomes, R. A. and Goodman, M. C. and Gouffon, P. and Graf, N. and Gran, R. and Grzelak, K. and Habig, A. and Hahn, S. R. and Hartnell, J. and Hatcher, R. and Holin, A. and Huang, J. and Hylen, J. and Irwin, G. M. and Isvan, Z. and James, C. and Jensen, D. and Kafka, T. and Kasahara, S. M. S. and Nowak, J. A. (2016) Measurement of the multiple-muon charge ratio in the MINOS Far Detector. Physical Review D, 93 (5). ISSN 1550-7998

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Abstract

The charge ratio, $R_\mu = N_{\mu^+}/N_{\mu^-}$, for cosmogenic multiple-muon events observed at an under- ground depth of 2070 mwe has been measured using the magnetized MINOS Far Detector. The multiple-muon events, recorded nearly continuously from August 2003 until April 2012, comprise two independent data sets imaged with opposite magnetic field polarities, the comparison of which allows the systematic uncertainties of the measurement to be minimized. The multiple-muon charge ratio is determined to be $R_\mu = 1.104 \pm 0.006 {\rm \,(stat.)} ^{+0.009}_{-0.010} {\rm \,(syst.)} $. This measurement complements previous determinations of single-muon and multiple-muon charge ratios at underground sites and serves to constrain models of cosmic ray interactions at TeV energies.

Item Type: Journal Article
Journal or Publication Title: Physical Review D
Additional Information: © 2016 American Physical Society
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 78568
Deposited By: ep_importer_pure
Deposited On: 08 Mar 2016 09:00
Refereed?: Yes
Published?: Published
Last Modified: 23 Oct 2019 01:23
URI: https://eprints.lancs.ac.uk/id/eprint/78568

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