Elsevier

Nuclear Physics A

Volume 487, Issue 2, 10 October 1988, Pages 269-278
Nuclear Physics A

The beta-decay of 8He

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Abstract

A many-level, many-channel R-matrix formula is used to fit the measured 8He β-decay data, including the half-life, branching ratios and delayed neutron and triton energy spectra. Satisfactory fits are found with contributions from four 1+ levels of 8Li, at 0.98, 3.08, 5.15 and 9.06 MeV. The 32 reduced width amplitudes are taken from a shell-model calculation, with only two requiring adjustment. Gamow-Teller matrix elements obtained from the fits are in reasonable agreement with shell-model values.

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