Abstract
Measurements of the semileptonic weak-neutral-current reactions p→p and νp→νp are presented. The experiment was performed using a 170-metric-ton high-resolution target detector in the BNL wide-band neutrino beam. High-statistics samples yield the absolute differential cross sections dσ(p)/ and dσ(νp)/. A measurement of the axial-vector form factor () is also presented. The results are in good agreement with the standard model SU(2)×U(1). The weak-neutral-current parameter is determined to be =0.220±0.016(stat(syst).
- Received 16 June 1986
DOI:https://doi.org/10.1103/PhysRevD.35.785
©1987 American Physical Society