Showing papers by "Jim Napolitano published in 1987"
TL;DR: The upper range of the positron momentum spectrum from the decay of /sup 8/B is measured and this spectrum is compared to that predicted on the basis of various available measured alpha spectra from the breakup of the daughter /Sup 8/Be nucleus.
Abstract: We have measured the upper range of the positron momentum spectrum from the decay of /sup 8/B. This spectrum is compared to that predicted on the basis of various available measured alpha spectra from the breakup of the daughter /sup 8/Be nucleus. Recoil order corrections are included in the comparison. After choosing the most consistent alpha spectrum we infer the /sup 8/B neutrino spectrum which we integrate over the /sup 37/Cl(..nu../sub e/,e/sup -/) /sup 37/Ar cross section. We obtain (1.07 +- 0.02) x 10/sup -42/ cm/sup 2/ for this average cross section where the error is an estimate of the rms (i.e., 1sigma) statistical uncertainty from our positron spectrum measurement. This value is appropriate for predicting the solar neutrino capture rate in /sup 37/Cl detectors. Systematic errors in the determination of the integrated cross section are discussed.
13 citations