Measurement of the strange sea distribution using neutrino charm production
Aug, 1993
4 pages
Published in:
- Phys.Rev.Lett. 70 (1993) 134-137
Experiments:
Citations per year
Abstract: (APS)
A high-statistics study by the Columbia-Chicago-Fermilab-Rochester Collaboration of opposite-sign dimuon events induced by neutrino-nucleon scattering at the Fermilab Tevatron is presented. A sample of 5044 νμ and 1062 ν¯μ induced μ∓μ± events with Pμ1≥9 GeV/c, Pμ2≥5 GeV/c, 30≤Eν≤600 GeV, and 〈Q2〉=22.2 GeV2/c2 is observed. The data support the slow-rescaling model of charm production with a value of mc=1.31±0.24 GeV2/c2. The first measurement of the Q2 dependence of the nucleon strange quark distribution xs(x) is presented. The data yield the Cabibbo-Kobayashi-Maskawa matrix element ‖Vcd‖=0.209±0.012 and the nucleon fractional strangeness content ηs=0.064−0.007+0.008.- neutrino nucleon: interaction
- interaction: neutrino nucleon
- muon: pair production
- pair production: muon
- production: charm
- charm: production
- mass: charm
- charm: mass
- model: rescaling
- quark: sea
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