| Published Articles | |
| Title | Evolution of quadrupole collectivity in N=80 isotones toward the Z=64 subshell gap: The $B(E2;2_{1}^{+} \rightarrow 0_{1}^{+})$ value of $^{142}$Sm |
| Author(s) | Stegmann, R (Darmstadt, Tech. Hochsch.) ; Bauer, C (Darmstadt, Tech. Hochsch.) ; Rainovski, G (Sofiya U.) ; Pietralla, N (Darmstadt, Tech. Hochsch.) ; Stahl, C (Darmstadt, Tech. Hochsch.) ; Bönig, S (Darmstadt, Tech. Hochsch.) ; Ilieva, S (Darmstadt, Tech. Hochsch.) ; Blazhev, A (Cologne U.) ; Damyanova, A (Sofiya U. ; Geneva U.) ; Danchev, M (Sofiya U.) ; Gladnishki, K (Sofiya U.) ; Jolie, J (Cologne U.) ; Lutter, R (Munich U.) ; Pakarinen, J (CERN ; Jyvaskyla U.) ; Radeck, D (Cologne U.) ; Rapisarda, E (CERN ; Leuven U.) ; Reiter, P (Cologne U.) ; Scheck, M (Paisley U. ; SUPA, UK) ; Siebeck, B (Cologne U.) ; Stora, T (CERN) ; Thöle, P (Cologne U.) ; Thomas, T (Cologne U.) ; Thürauf, M (Darmstadt, Tech. Hochsch.) ; Vermeulen, M J (York U., England) ; Voulot, D (CERN) ; Warr, N (Cologne U.) ; Wenander, F (CERN) ; Werner, V (Darmstadt, Tech. Hochsch. ; Yale U.) ; De Witte, H (Leuven U.) |
| Publication | APS, 2015 |
| Number of pages | 5 |
| In: | Phys. Rev. C 91 (2015) 054326 |
| DOI | 10.1103/PhysRevC.91.054326 |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN REX ISOLDE |
| Abstract | It was shown that the evolution of the $B(E2;2_{1}^{+} \rightarrow 0_{1}^{+})$ values in $N$ = 80 isotones from Te to Nd is affected by the underlying subshell structure. This manifests itself in the observation of the local suppression of the $B(E2)$ value at $Z$ = 58 with respect to the neighboring nuclei $^{136}$Ba and $^{140}$Nd. To investigate this shell sensitivity toward the $Z$ = 64 subshell gap, the $B(E2;2_{1}^{+} \rightarrow 0_{1}^{+})$ value of the unstable nucleus $^{142}$Sm was measured utilizing the projectile Coulomb excitation technique. The radioactive ion beam (RIB) experiment was performed at the REX-ISOLDE facility at CERN. The $B(E2)$ value of 32(4) W.u. reflects the impact of the $\pi(1g_{7/2} 2d_{5/2})$ subshell closure at $Z$ = 64 with respect to a linear scaling of collectivity with valence proton number. |
| Copyright/License | publication: © 2015-2024 authors (License: CC-BY-3.0) |
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Записът е създаден на 2020-02-27, последна промяна на 2022-08-10
