| Experiments at CERN | |
| Title | Closing in on 100100Sn: Mass Measurements of the Neutron Deficient N=51-53 Tin Isotopes |
| Author(s) | Nies, L |
| Experiment | IS719 |
| Greybook | See IS719 experiment |
| Approved | 21 September 2022 |
| Status | Preparation |
| Collaboration | ISOLDE |
| Accelerator | CERN ISOLDE |
| Abstract | The direct neighborhood of the doubly magic $^{100}$Sn is of great interest to test our understanding of the nuclear structure and state-of-the-art many-body calculations. To probe this region, we therefore propose to accurately and precisely measure the ground-state masses of $^{101−103}$Sn using the high-precision mass spectrometer ISOLTRAP at CERN-ISOLDE. The mass values of these isotopes are currently only known with high uncertainties through indirect determination via beta-decay Q-values. A mass measurement of $^{101}$Sn directly probes the neutron binding energy of the closed $^{100}$Sn core and is of importance for bench-marking shell model and $\textit{ab initio}$ calculations. By measuring the masses of $^{102−103}$Sn the recently emerging local inconsistency on the mass surface at $\textit{N}$ = 53 can be resolved. Additionally, the mass measurements will reduce mass uncertainties of nine alpha and proton emitters north-east of $^{100}$Sn which are linked to the tin masses via their decays. |
Record created 2022-10-26, last modified 2023-05-01