Antineutrino anomalies and righthanded currents
Abstract
We analyze the predictions of several gaugetheory models for inclusive chargedcurrent antineutrino reactions on isoscalar, proton, and neutron targets. In particular, we calculate y and W distributions, average y, B parameters, and crosssection ratios. Gauge models incorporating righthanded quark transitions of the type u>b and d>x are considered, where the heavy quarks b and x have charges 1/3 and 4/3, respectively. The effects of varying both the quark masses and the physical thresholds are examined. Experimental cuts and fluxaveraging, where appropriate, are applied to the model predictions for the Fermilab counter and bubblechamber experiments. We find that with reasonable choices of parameters, five or sixquark models with valencestrength righthanded currents can fit most of the present experimental data to within onestandarddeviation accuracy.
 Publication:

Physical Review D
 Pub Date:
 August 1977
 DOI:
 10.1103/PhysRevD.16.575
 Bibcode:
 1977PhRvD..16..575A