Particle instability of 53 Cu
Language
en
Article de revue
This item was published in
European Physical Journal A. 2013, vol. 49, p. 45
EDP Sciences
English Abstract
The most proton-rich particle-stable or quasi-stable copper isotope identified in projectile frag- mentation reactions is 55 Cu. 54 Cu was found unbound a few years ago in such an experiment. The present note reports on a ...Read more >
The most proton-rich particle-stable or quasi-stable copper isotope identified in projectile frag- mentation reactions is 55 Cu. 54 Cu was found unbound a few years ago in such an experiment. The present note reports on a reanalysis of data to determine a life-time limit for 53 Cu. A comparison with data for 52 Ni and 54 Zn combined with EPAX calculations allows to determine a life-time limit of this nucleus of 130 ns which, in a simple barrier penetration model, yields a one-proton separation energy of − 350 keV. This experimental limit is in agreement with a prediction from the latest Atomic Mass Evaluation and with other model predictions.Read less <
Origin
Hal imported