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Title: Measurement of the atmospheric muon charge ratio using the MINOS near detector

Conference ·
OSTI ID:917087

The magnetized MINOS near detector has been collecting charge-separated atmospheric muon events since January 2005. To reduce the systematics due to muon acceptance equal periods of forward and reverse magnetic field data were combined. This has allowed an accurate measurement of the muon charge ratio to be performed with 8.52 days of data. We report a charge ratio of 1.288{+-}0.004(stat.){+-}0.025(syst.) at a mean surface energy of 110 GeV.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-07CH11359
OSTI ID:
917087
Report Number(s):
FERMILAB-CONF-07-178-E; TRN: US0804440
Resource Relation:
Conference: Presented at 30th International Cosmic Ray Conference (ICRC 2007), Merida, Yucatan, Mexico, 3-11 Jul 2007
Country of Publication:
United States
Language:
English