Mass measurement of80Yby β-γ coincidence spectroscopy
Physical Review C2003Vol. 67(3)
C. J. Barton, D. S. Brenner, N. V. Zamfir, M. Caprio, A. Aprahamian, M. Wiescher, C. W. Beausang, Z. Berant, R. F. Casten, J. R. Cooper, R. L. Gill, R. Krücken, J. R. Novak, N. Pietralla, M. Shawcross, A. Teymurazyan, A. Wolf
Abstract
The ${Q}_{\mathrm{EC}}$ value of ${}^{80}\mathrm{Y}$ has been measured by \ensuremath{\beta}-\ensuremath{\gamma} coincidence spectroscopy to be \ensuremath{\geqslant}8929(83) keV. Combining this result with the adopted mass excess of the daughter ${}^{80}\mathrm{Sr}$ gives a mass excess for ${}^{80}\mathrm{Y}$ of \ensuremath{\geqslant}-61 376(83) keV. Results are compared with other measurements, with Audi-Wapstra systematics, and with predictions of mass formulas. Implications of this measurement are considered for the rp process.
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