Neutrino Production of Same-Sign Dimuons at the Fermilab Tevatron

The rate of neutrino and antineutrino induced same-sign dimuon production was measured using a sample of 220 mu^{-}mu^ {-} events and 15 mu^ {+}mu^{+} events, normalized to 1.5 million neutrino-induced charged-current events and 0.3 million antineutrino-induced events with energies between 30 GeV and 600 GeV. The data was obtained with the Chicago-Columbia-Fermilab-Rochester neutrino detector at the Fermilab Tevatron during two experiments, E744 and E770. The CCFR detector is a combined steel target and calorimeter which is followed by a muon-momentum spectrometer. After background subtraction, the prompt rate of same-sign dimuon production is (0.53 +/- 0.24) times 10^{-4} per charged-current event for neutrinos and (0.52 +/- 0.33) times 10 ^{-4} per charged-current events for antineutrinos. These rates are consistent with Standard Model predictions for cc gluon bremsstrahlung and with zero. The kinematic distributions of the same-sign dimuon signal are consistent with those of the non-prompt background due to meson decays in the hadron shower of a charged-current events and cc gluon bremsstrahlung.