Measurement of the Multiple-Muon Charge Ratio in the MINOS Far Detector

MINOS Collaboration: P. Adamson , I. Anghel , A. Aurisano , G. Barr , M. Bishai , A. Blake , G. J. Bock , D. Bogert

show 112 more authors

S. V. Cao T. J. Carroll C. M. Castromonte R. Chen S. Childress J. A. B. Coelho L. Corwin D. Cronin-Hennessy J. K. de Jong S. De Rijck A. V. Devan N. E. Devenish M. V. Diwan C. O. Escobar J. J. Evans E. Falk G. J. Feldman W. Flanagan M. V. Frohne M. Gabrielyan H. R. Gallagher S. Germani R. A. Gomes M. C. Goodman P. Gouffon N. Graf R. Gran K. Grzelak A. Habig S. R. Hahn J. Hartnell R. Hatcher A. Holin J. Huang J. Hylen G. M. Irwin Z. Isvan C. James D. Jensen T. Kafka S. M. S. Kasahara G. Koizumi M. Kordosky A. Kreymer K. Lang J. Ling P. J. Litchfield P. Lucas W. A. Mann M. L. Marshak N. Mayer C. McGivern M. M. Medeiros R. Mehdiyev J. R. Meier M. D. Messier W. H. Miller S. R. Mishra S. Moed Sher C. D. Moore L. Mualem J. Musser D. Naples J. K. Nelson H. B. Newman R. J. Nichol J. A. Nowak J. O'Connor M. Orchanian R. B. Pahlka J. Paley R. B. Patterson G. Pawloski A. Perch M. Pf\"utzner D. D. Phan S. Phan-Budd R. K. Plunkett N. Poonthottathil X. Qiu A. Radovic B. Rebel C. Rosenfeld H. A. Rubin P. Sail M. C. Sanchez J. Schneps A. Schreckenberger P. Schreiner R. Sharma A. Sousa N. Tagg R. L. Talaga J. Thomas M. A. Thomson X. Tian A. Timmons J. Todd S. C. Tognini R. Toner D. Torretta G. Tzanakos J. Urheim P. Vahle B. Viren A. Weber R. C. Webb C. White L. Whitehead L. H. Whitehead S. G. Wojcicki R. Zwaska

Authors on Pith no claims yet

classification ✦ hep-ex physics.ins-det

keywords multiple-muonchargemeasurementratiodetectoreventsminosallows

0 comments

read the original 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.

This paper has not been read by Pith yet.

Measurement of the Multiple-Muon Charge Ratio in the MINOS Far Detector

discussion (0)