Implications of the GALLEX Source Experiment for the Solar Neutrino Problem

Abstract

We argue that, prior to the recent GALLEX ${}^{51}$Cr source experiment, the excited state contributions to the ${}^{71}$Ga capture cross section for ${}^{51}$Cr and ${}^7$Be neutrinos were poorly constrained, despite forward-angle (p,n) measurements. We describe the origin of the uncertainties and estimate their extent. We explore the implications of the source experiment for solar neutrino capture in light of these uncertainties. A reanalysis of the ${}^7$Be and ${}^8$B flux constraints and MSW solutions of the solar neutrino puzzle is presented.

LaTeX (2.09), 18 p + Fig 2-5 (uuencoded ps file). Contact Authors for Fig 1. Entire ps file avilable by anonymous ftp at ftp://upenn5.hep.upenn.edu/pub/hata/papers/ga_source.ps.Z

References in corpus (4)

• Solar Model Uncertainties, MSW Analysis, and Future Solar Neutrino Experiments
• Astrophysical Solutions are Incompatible with the Solar Neutrino Data
• Implication of Combined Solar Neutrino Observation and their Theoretical Uncertainties
• The Earth Effect in the MSW Analysis of the Solar Neutrino Experiments

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• Short-Baseline Electron Neutrino Disappearance, Tritium Beta Decay and Neutrinoless Double-Beta Decay
• Probability of a Solution to the Solar Neutrino Problem Within the Minimal Standard Model
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• Revised neutrino-gallium cross section and prospects of BEST in resolving the Gallium anomaly
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• Hint of CPT Violation in Short-Baseline Electron Neutrino Disappearance
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