- Conference date: 6−12 Aug 1992
- Location: Dallas, Texas (USA)
Neutrino and antineutrino interactions with two muons in the final state have been studied by the CCFR collaboration in the Fermilab Tevatron neutrino beam. The rate of neutrino‐ and antineutrino‐induced prompt same‐sign dimuon production in steel was measured using a sample of 220 μ−μ− events and 15 μ+μ+ events with P μ≳9 GeV/c, and energies between 30 GeV and 600 GeV. In addition, a sample of 5044 νμ and 1062 ν̄μ induced opposite‐sign (μ∓μ±) events was also observed with P μ1≥9 GeV/c, P μ2≥5 GeV/c, and 30≤E θ≤600 GeV. The opposite‐sign data support the slow rescaling model of charm production with a value of m c =1.31±0.24 GeV/c 2. The CKM matrix element V cd =0.209±0.012 and the nucleon strangeness content, η s =0.064+0.0075 −0.0065 are also extracted from the data. The first measurements of the Q 2 dependence of the strange quark densities, xs(x), are also presented.
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