Measurements ofνμNandν¯μNCharged-Current Total Cross Sections

Abstract

Measurements of flux-normalized neutrino and antineutrino total charged-current cross sections ($\ensuremath{\sigma}$) in the energy range $45<E<205$ GeV are presented. We see no evidence for the anomalous sharp rise in $\frac{{\ensuremath{\sigma}}_{\overline{\ensuremath{\nu}}}}{{\ensuremath{\sigma}}_{\ensuremath{\nu}}}$ reported by earlier authors. The neutrino cross section rises linearly with energy and with $\frac{\ensuremath{\sigma}}{E}$ about 18% smaller than other measurements below 10 GeV. The average antineutrino slope at 55 GeV is consistent with measurements at low energy; however, a (20 \ifmmode\pm\else\textpm\fi{} 10)% increase is indicated over our energy range.