B. G. Ritchie

Final results from the Palo Verde neutrino oscillation experiment

The

Search for neutrino oscillations at the Palo Verde nuclear reactors

\nuebar

Reaction 58Ni(π+,2p) at 160 MeV

flux and spectrum have been measured at a distance of about 800 m from the reactors of the Palo Verde Nuclear Generating Station using a segmented Gd-loaded liquid scintillator detector. Correlated positron-neutron events from the reaction

π+p scattering at 65 to 140 MeV

\nuebar

A new high temperature isol ion source

p

DWIA predictions of (p,p') data using electromagnetically constrained densities

\to

The Palo Verde reactor neutrino experiment A test for long baseline neutrino oscillations

e^+n were recorded for a period of 200 d including 55 d with one of the three reactors off for refueling. Backgrounds were accounted for by making use of the reactor-on and reactor-off cycles, and also with a novel technique based on the difference between signal and background under reversal of the e^+ and n portions of the events. A detailed description of the detector calibration, background subtraction, and data analysis is presented here. Results from the experiment show no evidence for neutrino oscillations.

Pion absorption in heavy nuclei

\nuebar\to\bar\nu_x

Elastic and inelastic scattering of 0.8 GeV protons from Ne20 and Ne22

oscillations were excluded at 90% CL for

Pion absorption in light nuclei.

\dm>1.12\times10^{-3}