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Final results from the Palo Verde Neutrino Oscillation Experiment

F. Boehm·J. Busenitz·B. Cook·G. Gratta·H. Henrikson·J. Kornis·D. Lawrence·K. B. Lee·K. McKinney·L. Miller·V. Novikov·A. Piepke·B. Ritchie·D. Tracy·P. Vogel·Y-F. Wang·J. Wolf
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Abstract

The analysis and results are presented from the complete data set recorded at Palo Verde between September 1998 and July 2000. In the experiment, the $\nuebar$ interaction rate has been measured at a distance of 750 and 890 m from the reactors of the Palo Verde Nuclear Generating Station for a total of 350 days, including 108 days with one of the three reactors off for refueling. Backgrounds were determined by (a) the $swap$ technique based on the difference between signal and background under reversal of the positron and neutron parts of the correlated event and (b) making use of the conventional reactor-on and reactor-off cycles. There is no evidence for neutrino oscillation and the mode $\nuebar\to\barν_x$ was excluded at 90% CL for $\dm>1.1\times10^{-3}$ eV$^2$ at full mixing, and $\sinq>0.17$ at large $\dm$.

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F. Boehm, J. Busenitz, B. Cook, G. Gratta, H. Henrikson, J. Kornis, D. Lawrence, K. B. Lee, K. McKinney, L. Miller, V. Novikov, A. Piepke, B. Ritchie, D. Tracy, P. Vogel, Y-F. Wang, J. Wolf. 2001-07-04. Final results from the Palo Verde Neutrino Oscillation Experiment. https://doi.org/10.1103/physrevd.64.112001

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