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Title: Dimuon production by high-energy neutrinos and antineutrinos in the fermilab 15-foot bubble chamber

Thesis/Dissertation ·
OSTI ID:6090149

The Fermilab fifteen foot bubble chamber/two-plane External Muon Identifier (EMI) hybrid detector filled with Ne(47% atomic)-H/sub 2/ is exposed to the quadrupole triplet beam (< E/sub nu//sub mu > = 89 GeV, = 60 GeV). In 326000 pictures there are 10148 neutrino and 1773 antineutrino charged current events with two-plane EMI muon identification and muon momenta >4 GeV/c. In this sample there are 55 ..mu..-..mu../sup +/X, 11 ..mu..-..mu..-X and 0 ..mu../sup +/..mu../sup +/X candidates with muon momenta >4 GeV/c. The like-sign events are consistent with background. The opposite-sign dimuons occur at R..mu mu.. = 0.35 +- 0.10% of the single muon rate. The nu/sub mu/-induced ..mu..-..mu../sup +/ rate is 0.20 +- 0.15% below E/sub nu//sub mu/ = 100 GeV and 0.50 +- 0.30% above 100 GeV. In the opposite sign dimuons there are 10 candidates with an associated V/sup 0/ implying 0.76 +- 0.36 neutral strange particle per opposite sign dimuon event. The production rate, excess of neutral strange particles, and kinematic distributions of the dimuon events are consistent with the charm model predictions.

Research Organization:
California Univ., Berkeley (USA)
OSTI ID:
6090149
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English