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

1992200020082016202405101520
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