Mass measurements of {sup 70}Se, {sup 71}Se, {sup 72}Br, and {sup 73}Br

The path and termination point for the rapid proton-capture (rp) process above {sup 56}Ni is uncertain due to a lack of knowledge of nuclear properties, especially masses, near the proton drip line. To address this need we have begun a program to measure masses along the rp-process path in the A{app...

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Bibliographic Details
Published in:	Physical review. C, Nuclear physics Vol. 63; no. 3
Main Authors:	Tomlin, B. E., Barton, C. J., Zamfir, N. V., Caprio, M. A., Gill, R. L., Kru''cken, R., Novak, J. R., Cooper, J. R., Zyromski, K. E., Cata-Danil, G.
Format:	Journal Article
Language:	English
Published:	United States The American Physical Society 01-03-2001
Subjects:	NUCLEAR PROPERTIES PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PROTONS SPECTROSCOPY
Online Access:	Get full text
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Summary:	The path and termination point for the rapid proton-capture (rp) process above {sup 56}Ni is uncertain due to a lack of knowledge of nuclear properties, especially masses, near the proton drip line. To address this need we have begun a program to measure masses along the rp-process path in the A{approx}60--80 region using {beta}-{gamma} coincidence spectroscopy. Q{sub EC} values derived from {beta}{sup +} spectrum end points were used to calculate mass excess values for {sup 70}Se, {sup 71}Se, {sup 72}Br, and {sup 73}Br. The results are compared to predictions of mass models and to estimates based on systematic trends in this region.
Bibliography:	US
ISSN:	0556-2813 1089-490X
DOI:	10.1103/PhysRevC.63.034314