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 μ−μ− events and 15 μ+μ+ events with Pμ≳9 GeV/c, and energies between 30 GeV and 600 GeV. In addition, a sample of 5044 νμ and 1062 νμ induced opposite‐sign (μ∓μ±) events was also observed with Pμ1≥9 GeV/c, Pμ2≥5 GeV/c, and 30≤Eθ≤600 GeV. The opposite‐sign data support the slow rescaling model of charm production with a value of mc=1.31±0.24 GeV/c2. The CKM matrix element Vcd=0.209±0.012 and the nucleon strangeness content, ηs=0.064+0.0075−0.0065 are also extracted from the data. The first measurements of the Q2 dependence of the strange quark densities, xs(x), are also presented.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
