Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.00204 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913969413816320 |
|---|---|
| author | Wu, F. Andreoiu, C. Karayonchev, V. Petrache, C. M. Régis, J. -M. Esmaylzadeh, A. Michelagnoli, C. Beuschlein, M. Spagnoletti, P. Colombi, G. Daugas, J. M. Domenichetti, L. Garrett, P. E. Jolie, J. Ley, M. Pannu, S. Taddei, E. |
| author_facet | Wu, F. Andreoiu, C. Karayonchev, V. Petrache, C. M. Régis, J. -M. Esmaylzadeh, A. Michelagnoli, C. Beuschlein, M. Spagnoletti, P. Colombi, G. Daugas, J. M. Domenichetti, L. Garrett, P. E. Jolie, J. Ley, M. Pannu, S. Taddei, E. |
| contents | The lifetime of the $0^+_3$ state in $^{120}$Sn was measured for the first time applying the fast-timing technique following thermal neutron capture. The mean lifetime of $τ= 50(7)$~ps leads to a $E0$ transition strength of $10^3\times ρ^2(E0;0^+_3\rightarrow0^+_2) = 120(50)$, suggesting shape coexistence and a high degree of mixing between the $0^+_2$ and $0^+_3$ states. With the newly measured lifetime, the $B(E2;0^+_3\rightarrow 2^+_1)$ value is 0.50(7)~W.u., which reveals that the $ρ^2(E0;0^+_3\rightarrow0^+_1)$ increases by a factor of $\approx 3.4$ from $^{116}$Sn to $^{120}$Sn. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_00204 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Evidence for shape coexistence in $^{120}$Sn from the first $0^+_3$ lifetime measurement Wu, F. Andreoiu, C. Karayonchev, V. Petrache, C. M. Régis, J. -M. Esmaylzadeh, A. Michelagnoli, C. Beuschlein, M. Spagnoletti, P. Colombi, G. Daugas, J. M. Domenichetti, L. Garrett, P. E. Jolie, J. Ley, M. Pannu, S. Taddei, E. Nuclear Experiment The lifetime of the $0^+_3$ state in $^{120}$Sn was measured for the first time applying the fast-timing technique following thermal neutron capture. The mean lifetime of $τ= 50(7)$~ps leads to a $E0$ transition strength of $10^3\times ρ^2(E0;0^+_3\rightarrow0^+_2) = 120(50)$, suggesting shape coexistence and a high degree of mixing between the $0^+_2$ and $0^+_3$ states. With the newly measured lifetime, the $B(E2;0^+_3\rightarrow 2^+_1)$ value is 0.50(7)~W.u., which reveals that the $ρ^2(E0;0^+_3\rightarrow0^+_1)$ increases by a factor of $\approx 3.4$ from $^{116}$Sn to $^{120}$Sn. |
| title | Evidence for shape coexistence in $^{120}$Sn from the first $0^+_3$ lifetime measurement |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2508.00204 |