Direct observation of two protons in the decay of $^{54}$Zn
Language
en
Article de revue
This item was published in
Physical Review Letters. 2011, vol. 107, p. 102502
American Physical Society
English Abstract
The two protons emitted in the decay of 54Zn have been individually observed for the rst time in a Time Projection Chamber. The total decay energy and the half-life measured in this work agree with the results obtained in ...Read more >
The two protons emitted in the decay of 54Zn have been individually observed for the rst time in a Time Projection Chamber. The total decay energy and the half-life measured in this work agree with the results obtained in a previous experiment. Angular and energy correlations between the two protons are determined and compared to theoretical distributions of a three-body model. Within the shell model framework, the relative decay probabilities show a strong contribution of the p2 con guration for the two-proton emission. After 45Fe, the present result on 54Zn constitutes only the second case of a direct observation of the ground state two-proton decay of a long-lived isotope.Read less <
Origin
Hal imported