Constraints on r-process conditions from beta-decay properties far off stability and r-abundances

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, , Citation K -L Kratz et al 1988 J. Phys. G: Nucl. Phys. 14 S331 DOI 10.1088/0305-4616/14/S/034

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1 Inst. fur Kernchem., Mainz Univ., West Germany

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0305-4616/14/S/S331

Abstract

The measured beta -decay properties of the 'waiting-point' nuclei 130Cd and 80Zn, together with improved shell model predictions of T1/2 and Pn-values for their experimentally unknown N approximately=82 and 50 neighbours, can be directly related to the observed r-abundances in the A approximately=130 and 80 abundance peaks. Based on this result, new constraints are given on the stellar conditions under which the r-process has operated.

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