Half-Life of ${}^{80}{Zn}$ : The First Measurement for an $r$ -Process Waiting-Point Nucleus

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28 April 1986

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 56 (17) , 1874-1877
https://doi.org/10.1103/physrevlett.56.1874

Abstract

A half-life of 0.55 ± 0.02 s was measured for the neutron-rich fission-product nucleus

{}_{30}^{80}{Zn}_{50}

. A

Q_{β}

value for the decay of

{}^{80}{Zn}

of 7.15 ± 0.15 MeV and a level scheme for

{}^{80}{Ga}

have also been deduced. The properties of this

N = 50

waiting-point nucleus are significant for the evaluation of different models of

r

-process environments and exposure times.

Keywords

This publication has 15 references indexed in Scilit:

Beta-decay half-lives of new neutron-rich chromium-to-nickel isotopes and their consequences for the astrophysical r-process
Physics Letters B, 1985
Neutron capture process in astrophysics
Reports on Progress in Physics, 1985
R-process nucleosynthesis in dynamic helium-burning environments
The Astrophysical Journal, 1985
Beta-decay half-lives of neutron-rich nuclei
Atomic Data and Nuclear Data Tables, 1984
The waiting point approximation inr-process calculations
Astrophysics and Space Science, 1983
Steady flow approximations to the heliumR-process
Astrophysics and Space Science, 1983
Nucleosynthesis of neutron-rich heavy nuclei during explosive helium burning in massive stars
The Astrophysical Journal, 1981
The origin and abundances of the chemical elements
Reviews of Modern Physics, 1975
Beta-decay half-lives calculated on the gross theory
Atomic Data and Nuclear Data Tables, 1973
Synthesis of the Elements in Stars
Reviews of Modern Physics, 1957