Measurement of the neutral-current interactions of high-energy neutrinos and antineutrinos

Abstract

Measurements of the $\nu$ and $\overline{\nu }$ weak hadronic neutral-current total cross sections and hadron energy distributions are consistent with a $V-A$ form for this current. They are three standard deviations from pure $V$, pure $A$, or a pure $T$ form and unambiguously exclude $V+A$ and any linear combination of $S$ and $P$.