Neutrino production of Dimuons at the Fermilab tevatron

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Abstract

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 μμ events and 15 μ+μ+ events with Pμ > 9 GeV/c, and energies between 30 GeV and 600 GeV. After background subtraction, the prompt rate of same-sign dimuon production is (0.53 ± 0.24) × 10−4 per νμ charged-current event and (0.52 ± 0.33) × 10−4perνμ charged-current event. After demanding Pμ1 ≥ 9 GeV/c, Pμ2 ≥ 5 GeV/c and 30 ≤ Eν ≤ 600 GeV a sample of 5044 νμ 1062 νμinduced μ μ± events are observed. The data support the slow rescaling model of charm production with a value of mc = 1.31 ± .24 GeV/c2. The CKM matrix element Vcd=.209±0.012 and the nucleon strangeness content, ηε=.064−0.00065+0.00075 are measured with the strange sea x distribution found to be softer than its non-strange counterpart. The first measurements of the Q2 dependence of the strange quark densities, ϰs(ϰ), are also presented.

References (39)

  • F.S. Merritt

    Nucl. Instrum. Methods

    (1986)
  • J.G.H. DeGroot

    Phys. Lett.

    (1979)
  • M. Holder

    Phys. Lett.

    (1977)
  • M. Jonker

    Phys. Lett.

    (1981)
  • V. Barger et al.

    Phys. Rev. D

    (1977)
  • W.C. Leung
  • C. Peterson

    Phys. Rev.

    (1983)
  • K. Nishikawa

    Phys. Rev. Lett.

    (1985)
  • H. Albrecht

    Phys. Lett.

    (1985)
  • Review of Particle Properties

    Phys. Lett.

    (1990)
  • M.A. Aivazis et al.

    Phys. Lett.

    (1991)
  • W.K. Sakumoto

    Nucl. Instrum. Methods

    (1990)
  • B.A. Schumm

    Phys. Rev. Lett.

    (1988)
  • B.A. Schumm
  • K. Lang

    Z. Phys.

    (1987)
  • H. Burkhardt

    Z. Phys.

    (1985)
  • T. Trinko

    Phys. Rev.

    (1981)
  • K. Nishikawa

    Phys. Rev. Lett.

    (1981)
  • P.H. Sandler
  • View full text