PreprintCC BY 4.0arXiv
Shape coexisting intruder states in even Sn isotopes and their influence on the B4/2<1 anomaly
Abstract
The normal and intruder configuration states of the even 114−122Sn nuclei are described in a geometric model using a double well collective potential. It is shown that subtle changes in the potential shapes can reproduce the mass dependence of the low-lying energy levels and the associated E0 and E2 transitions. The extracted shape dynamics reveals different instances of shape coexistence with and without mixing, in all considered nuclei. This information is used to track the origin of B4/2<1 values reported for 114,122Sn isotopes, providing thus a phenomenological interpretation.
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BibTeX
@misc{buganu2026shape,
title = {{Shape coexisting intruder states in even Sn isotopes and their influence on the $B_4/2<1$ anomaly}},
author = {P. Buganu and R. Benjedi and R. Budaca},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.03095},
eprint = {2611.03095},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.03095},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Shape coexisting intruder states in even Sn isotopes and their influence on the B_4/2<1 anomaly
AU - P. Buganu
AU - R. Benjedi
AU - R. Budaca
PY - 2026
DA - 2026/11/02
PB - arXiv
DO - 10.48550/arxiv.2611.03095
UR - https://arxiv.org/abs/2611.03095
AB - The normal and intruder configuration states of the even ^114−122Sn nuclei are described in a geometric model using a double well collective potential. It is shown that subtle changes in the potential shapes can reproduce the mass dependence of the low-lying energy levels and the associated E0 and E2 transitions. The extracted shape dynamics reveals different instances of shape coexistence with and without mixing, in all considered nuclei. This information is used to track the origin of B_4/2<1 values reported for ^114,122Sn isotopes, providing thus a phenomenological interpretation.
ER -