Refining the nuclear mass surface with the mass of $^{103}$Sn
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2024
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| author | Nies, L. Atanasov, D. Athanasakis-Kaklamanakis, M. Au, M. Bernerd, C. Blaum, K. Chrysalidis, K. Fischer, P. Heinke, R. Klink, C. Lange, D. Lunney, D. Manea, V. Marsh, B. A. Müller, M. Mougeot, M. Naimi, S. Schweiger, Ch. Schweikhard, L. Wienholtz, F. |
| author_facet | Nies, L. Atanasov, D. Athanasakis-Kaklamanakis, M. Au, M. Bernerd, C. Blaum, K. Chrysalidis, K. Fischer, P. Heinke, R. Klink, C. Lange, D. Lunney, D. Manea, V. Marsh, B. A. Müller, M. Mougeot, M. Naimi, S. Schweiger, Ch. Schweikhard, L. Wienholtz, F. |
| contents | Mass measurements with the ISOLTRAP mass spectrometer at CERN-ISOLDE improve mass uncertainties of neutron-deficient tin isotopes towards doubly-magic $^{100}$Sn. The mass uncertainty of $^{103}$Sn was reduced by a factor of 4, and the new value for the mass excess of -67104(18) keV is compared with nuclear \textit{ab initio} and density functional theory calculations. Based on these results and local trends in the mass surface, the masses of $^{101,103}$Sn, as determined through their $Q_{\textrm{EC}}$ values, were found to be inconsistent with the new results. From our measurement for $^{103}$Sn, we extrapolate the mass excess of $^{101}$Sn to -60005(300) keV, which is significantly more bound than previously suggested. By correcting the mass values for $^{101,103}$Sn, we also adjust the values of $^{104}$Sb, $^{105,107}$Te, $^{108}$I, $^{109,111}$Xe, and $^{112}$Cs near the proton drip line which are connected through their $α$- and proton $Q$-values. The results show an overall smoothening of the mass surface, suggesting the absence of deformation energy above the ${N=50}$ shell closure. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_17995 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Refining the nuclear mass surface with the mass of $^{103}$Sn Nies, L. Atanasov, D. Athanasakis-Kaklamanakis, M. Au, M. Bernerd, C. Blaum, K. Chrysalidis, K. Fischer, P. Heinke, R. Klink, C. Lange, D. Lunney, D. Manea, V. Marsh, B. A. Müller, M. Mougeot, M. Naimi, S. Schweiger, Ch. Schweikhard, L. Wienholtz, F. Nuclear Experiment Mass measurements with the ISOLTRAP mass spectrometer at CERN-ISOLDE improve mass uncertainties of neutron-deficient tin isotopes towards doubly-magic $^{100}$Sn. The mass uncertainty of $^{103}$Sn was reduced by a factor of 4, and the new value for the mass excess of -67104(18) keV is compared with nuclear \textit{ab initio} and density functional theory calculations. Based on these results and local trends in the mass surface, the masses of $^{101,103}$Sn, as determined through their $Q_{\textrm{EC}}$ values, were found to be inconsistent with the new results. From our measurement for $^{103}$Sn, we extrapolate the mass excess of $^{101}$Sn to -60005(300) keV, which is significantly more bound than previously suggested. By correcting the mass values for $^{101,103}$Sn, we also adjust the values of $^{104}$Sb, $^{105,107}$Te, $^{108}$I, $^{109,111}$Xe, and $^{112}$Cs near the proton drip line which are connected through their $α$- and proton $Q$-values. The results show an overall smoothening of the mass surface, suggesting the absence of deformation energy above the ${N=50}$ shell closure. |
| title | Refining the nuclear mass surface with the mass of $^{103}$Sn |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2410.17995 |