Abstract
Aiming at a search for possible color-excitation, deep-inelastic neutrino-nucleon scattering, νµ(νµ) + N →µ∓ + X, is analysed with a weak interaction model incorporating a color-changing current in addition to the standard GIM current. Various quantities of experimental interest are evaluated as functions of incident neutrino energy E and compared with the latest CDHS, BEBC and CIFR data as well as the lower-energy GGM data. Negative scalling violation is taken into account by a propagator-like parametrization. It is shown that (i) these neutrino data do not exclude a weak-boson of mass as low as ∼15 GeV; (ii) there is, particularly in the BEBC and CIFR data, some evidence in favor of positive scaling violation which indicates onset of new production channel (s); and (iii) the color-excitation with threshold at mX∼10 GeV is one probable explanation of the latter behavior.
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