Measurement of theνμCharged-Current Cross Section

The Fermilab 15-ft bubble chamber, filled with a heavy neon-hydrogen mix, was exposed to a narrow-band ${\nu }_{\mu }$ beam. Based on the observation of 830 charged-current ${\nu }_{\mu }$ interactions, the cross section was found consistent with a linear rise with the neutrino energy in the interval $10 \mathrm{GeV}<~E_{\nu }\lesssim 240 \mathrm{GeV}$. The average slope was determined to be $\frac{{\sigma }_{\nu }}{E_{\nu }}=(0.62\mathrm{}\pm 0.05)\times {10}^{-38\mathrm{}}$ ${\mathrm{cm}}^2$ ${\mathrm{GeV}}^{-1\mathrm{}}$.