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

Autoria(s): ADAMSON, P.; ANDREOPOULOS, C.; AUTY, D. J.; AYRES, D. S.; BACKHOUSE, C.; BARR, G.; BARRETT, W. L.; BHATTARAI, P.; BISHAI, M.; BLAKE, A.; BOCK, G. J.; BOEHNLEIN, D. J.; BOGERT, D.; BUDD, S.; CAVANAUGH, S.; CHERDACK, D.; CHILDRESS, S.; CHOUDHARY, B. C.; COELHO, J. A. B.; COLEMAN, S. J.; CORWIN, L.; CRONIN-HENNESSY, D.; DAMIANI, D.; DANKO, I. Z.; JONG, J. K. de; DEVENISH, N. E.; DIWAN, M. V.; DORMAN, M.; ESCOBAR, C. O.; EVANS, J. J.; FALK, E.; FELDMAN, G. J.; FIELDS, T. H.; FROHNE, M. V.; GALLAGHER, H. R.; GOMES, R. A.; GOODMAN, M. C.; Gouffon, Philippe; GRAF, N.; GRAN, R.; GRANT, N.; GRZELAK, K.; HABIG, A.; HARRIS, D.; HARRIS, P. G.; HARTNELL, J.; HATCHER, R.; HIMMEL, A.; HOLIN, A.; HUANG, X.; HYLEN, J.; ILIC, J.; IRWIN, G. M.; ISVAN, Z.; JAFFE, D. E.; JAMES, C.; JENSEN, D.; KAFKA, T.; KASAHARA, S. M. S.; KOIZUMI, G.; KOPP, S.; KORDOSKY, M.; KRAHN, Z.; KREYMER, A.; LANG, K.; LEFEUVRE, G.; LING, J.; LITCHFIELD, P. J.; LOIACONO, L.; LUCAS, P.; MANN, W. A.; MARSHAK, M. L.; MAYER, N.; MCGOWAN, A. M.; MEHDIYEV, R.; MEIER, J. R.; MESSIER, M. D.; MICHAEL, D. G.; MILLER, W. H.; MISHRA, S. R.; MITCHELL, J.; MOORE, C. D.; MORFIN, J.; MUALEM, L.; MUFSON, S.; MUSSER, J.; NAPLES, D.; NELSON, J. K.; NEWMAN, H. B.; NICHOL, R. J.; NOWAK, J. A.; OLIVER, W. P.; ORCHANIAN, M.; PALEY, J.; PATTERSON, R. B.; PAWLOSKI, G.; PEARCE, G. F.; PITTAM, R.; PLUNKETT, R. K.; QIU, X.; RATCHFORD, J.; RAUFER, T. M.; REBEL, B.; REICHENBACHER, J.; RODRIGUES, P. A.; ROSENFELD, C.; RUBIN, H. A.; RYABOV, V. A.; SANCHEZ, M. C.; SAOULIDOU, N.; SCHNEPS, J.; SCHREINER, P.; SHANAHAN, P.; SOUSA, A.; STRAIT, M.; TAGG, N.; TALAGA, R. L.; THOMAS, J.; THOMSON, M. A.; TINTI, G.; TONER, R.; TZANAKOS, G.; URHEIM, J.; VAHLE, P.; VIREN, B.; WEBER, A.; WEBB, R. C.; WHITE, C.; WHITEHEAD, L.; WOJCICKI, S. G.; WRIGHT, D. M.; YANG, T.; ZWASKA, R.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO
Data(s)

18/04/2012

18/04/2012

2011
Resumo

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)(-0.014)(+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.

U.S. DOE

United Kingdom STFC

U.S. NSF National Science Foundation

State and University of Minnesota

University of Athens, Greece

Brazil FAPESP

Brazil CNPq
Identificador

PHYSICAL REVIEW D, v.83, n.3, 2011

1550-7998

http://producao.usp.br/handle/BDPI/15992

10.1103/PhysRevD.83.032011

http://dx.doi.org/10.1103/PhysRevD.83.032011
Idioma(s)

eng
Publicador

AMER PHYSICAL SOC
Relação

Physical Review D
Direitos

restrictedAccess

Copyright AMER PHYSICAL SOC
Palavras-Chave #COSMIC-RAY SPECTRA #TEV #RANGE #Astronomy & Astrophysics #Physics, Particles & Fields
Tipo

article

original article

publishedVersion
Acesso ao item digital