Abstract
New measurements of the total crosssections of charged-current interactions of muonneutrinos and antineutrinos on isoscalar nuclei have been performed. Data were recorded in an exposure of the CHARM detector in an 160 GeV narrow-band beam. The antineutrino flux was determined from the measurements of the pion and kaon flux, and independently from the muon flux measured in the shield; the two methods are found to agree. The neutrino flux was determined from the muon flux ratio forv μ and\(\bar v_\mu \) runs which was normalized to the antineutrino flux. The cross-section slopes thus determined are
The momentum sum of the quarks in the nucleon and the ratio of sea quark to total quark momentum are derived from the measurements.
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Supported by the Bundesministerium für Forschung und Technologie Bonn, FRG, under contract 4HH 22P
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CHARM Collaboration., Allaby, J.V., Amaldi, U. et al. Total cross sections of charged-current neutrino and antineutrino interactions on isoscalar nuclei. Z. Phys. C - Particles and Fields 38, 403–410 (1988). https://doi.org/10.1007/BF01584388
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DOI: https://doi.org/10.1007/BF01584388