Shape changes in the mirror nuclei $^{70}$Kr and $^{70}$Se
Nuclear Experiment
2021-03-17 v1 Nuclear Theory
Abstract
We studied the proton-rich nucleus Kr through inelastic scattering at intermediate energies in order to extract the reduced transition probability, . Comparison with the other members of the isospin triplet, Br and Se, studied in the same experiment, shows a deviation from the expected linearity of the electromagnetic matrix elements as a function of . At present, no established nuclear structure theory can describe this observed deviation quantitatively. This is the first violation of isospin symmetry at this level observed in the transition matrix elements. A heuristic approach may explain the anomaly by a shape change between the mirror nuclei Kr and Se contrary to the model predictions.
Cite
@article{arxiv.2101.02363,
title = {Shape changes in the mirror nuclei $^{70}$Kr and $^{70}$Se},
author = {K. Wimmer and W. Korten and P. Doornenbal and T. Arici and P. Aguilera and A. Algora and T. Ando and H. Baba and B. Blank and A. Boso and S. Chen and A. Corsi and P. Davies and G. de Angelis and G. de France and J. -P. Delaroche and D. T. Doherty and J. Gerl and R. Gernhäuser and M. Girod and D. Jenkins and S. Koyama and T. Motobayashi and S. Nagamine and M. Niikura and A. Obertelli and J. Libert and D. Lubos and T. R. Rodríguez and B. Rubio and E. Sahin and T. Y. Saito and H. Sakurai and L. Sinclair and D. Steppenbeck and R. Taniuchi and R. Wadsworth and M. Zielinska},
journal= {arXiv preprint arXiv:2101.02363},
year = {2021}
}
Comments
accepted PRL