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Title: Measurement of the underground atmospheric muon charge ratio using the MINOS Near Detector

Abstract

The magnetized MINOS Near Detector, at a depth of 225 mwe, is used to measure the atmospheric muon charge ratio. The ratio of observed positive to negative atmospheric muon rates, using 301 days of data, is measured to be 1.266{+-}0.001(stat){sub -0.014}{sup +0.015}(syst). This measurement is consistent with previous results from other shallow underground detectors and is 0.108{+-}0.019(stat+syst) lower than the measurement at the functionally identical MINOS Far Detector at a depth of 2070 mwe. This increase in charge ratio as a function of depth is consistent with an increase in the fraction of muons arising from kaon decay for increasing muon surface energies.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
Publication Date:
OSTI Identifier:
21504854
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 83; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.83.032011; (c) 2011 American Institute of Physics
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; KAONS; MINUS-PLUS RATIO; MUONS; PARTICLE DECAY; SURFACE ENERGY; UNDERGROUND; BOSONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ENERGY; FERMIONS; FREE ENERGY; HADRONS; LEPTONS; LEVELS; MESONS; PHYSICAL PROPERTIES; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; SURFACE PROPERTIES; THERMODYNAMIC PROPERTIES

Citation Formats

Adamson, P., Bock, G. J., Boehnlein, D. J., Bogert, D., Childress, S., Choudhary, B. C., Harris, D., Hatcher, R., Hylen, J., James, C., Jensen, D., Koizumi, G., Kreymer, A., Lucas, P., Moore, C. D., Morfin, J., Plunkett, R. K., Rebel, B., Saoulidou, N., and Shanahan, P. Measurement of the underground atmospheric muon charge ratio using the MINOS Near Detector. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.83.032011.
Adamson, P., Bock, G. J., Boehnlein, D. J., Bogert, D., Childress, S., Choudhary, B. C., Harris, D., Hatcher, R., Hylen, J., James, C., Jensen, D., Koizumi, G., Kreymer, A., Lucas, P., Moore, C. D., Morfin, J., Plunkett, R. K., Rebel, B., Saoulidou, N., & Shanahan, P. Measurement of the underground atmospheric muon charge ratio using the MINOS Near Detector. United States. doi:10.1103/PHYSREVD.83.032011.
Adamson, P., Bock, G. J., Boehnlein, D. J., Bogert, D., Childress, S., Choudhary, B. C., Harris, D., Hatcher, R., Hylen, J., James, C., Jensen, D., Koizumi, G., Kreymer, A., Lucas, P., Moore, C. D., Morfin, J., Plunkett, R. K., Rebel, B., Saoulidou, N., and Shanahan, P. Tue . "Measurement of the underground atmospheric muon charge ratio using the MINOS Near Detector". United States. doi:10.1103/PHYSREVD.83.032011.
@article{osti_21504854,
title = {Measurement of the underground atmospheric muon charge ratio using the MINOS Near Detector},
author = {Adamson, P. and Bock, G. J. and Boehnlein, D. J. and Bogert, D. and Childress, S. and Choudhary, B. C. and Harris, D. and Hatcher, R. and Hylen, J. and James, C. and Jensen, D. and Koizumi, G. and Kreymer, A. and Lucas, P. and Moore, C. D. and Morfin, J. and Plunkett, R. K. and Rebel, B. and Saoulidou, N. and Shanahan, P.},
abstractNote = {The magnetized MINOS Near Detector, at a depth of 225 mwe, is used to measure the atmospheric muon charge ratio. The ratio of observed positive to negative atmospheric muon rates, using 301 days of data, is measured to be 1.266{+-}0.001(stat){sub -0.014}{sup +0.015}(syst). This measurement is consistent with previous results from other shallow underground detectors and is 0.108{+-}0.019(stat+syst) lower than the measurement at the functionally identical MINOS Far Detector at a depth of 2070 mwe. This increase in charge ratio as a function of depth is consistent with an increase in the fraction of muons arising from kaon decay for increasing muon surface energies.},
doi = {10.1103/PHYSREVD.83.032011},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 83,
place = {United States},
year = {Tue Feb 01 00:00:00 EST 2011},
month = {Tue Feb 01 00:00:00 EST 2011}
}