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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.05538 |
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| _version_ | 1866912574235213824 |
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| author | Lunney, D. Manea, V. Mougeot, M. Nies, L. Althubiti, N. A. Atanasov, D. Blaum, K. Herlert, A. Huang, W. -J. Karthein, J. Kulikov, I. Litvinov, Yu. A. Neidherr, D. Rodríguez, T. R. Rosenbusch, M. Schweikhard, L. Steinsberger, T. Welker, A. Wienholtz, F. Wolf, R. N. |
| author_facet | Lunney, D. Manea, V. Mougeot, M. Nies, L. Althubiti, N. A. Atanasov, D. Blaum, K. Herlert, A. Huang, W. -J. Karthein, J. Kulikov, I. Litvinov, Yu. A. Neidherr, D. Rodríguez, T. R. Rosenbusch, M. Schweikhard, L. Steinsberger, T. Welker, A. Wienholtz, F. Wolf, R. N. |
| contents | The onset of collective nuclear behavior in the ${N=60}$, ${A\sim100}$, region is examined through high-precision mass measurements of $^{96-98}$Kr, performed with the ISOLTRAP mass spectrometer at ISOLDE, CERN. Our results for $^{96-97}$Kr agree with previous measurements, with our new $^{97}$Kr Penning-trap mass value three times more precise. The mass value of $^{98}$Kr is measured for the first time. The new mass surface, together with comparisons to beyond-mean-field theoretical predictions, suggests that collectivity persists for the ${Z=36}$ isotopes, blurring the apparent ``low-$Z$ boundary'' of this deformed region. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_05538 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Extending the low-$Z$ "border'' of the $A=100$ region of deformation with precision mass spectrometry of $^{96-98}$Kr Lunney, D. Manea, V. Mougeot, M. Nies, L. Althubiti, N. A. Atanasov, D. Blaum, K. Herlert, A. Huang, W. -J. Karthein, J. Kulikov, I. Litvinov, Yu. A. Neidherr, D. Rodríguez, T. R. Rosenbusch, M. Schweikhard, L. Steinsberger, T. Welker, A. Wienholtz, F. Wolf, R. N. Nuclear Experiment The onset of collective nuclear behavior in the ${N=60}$, ${A\sim100}$, region is examined through high-precision mass measurements of $^{96-98}$Kr, performed with the ISOLTRAP mass spectrometer at ISOLDE, CERN. Our results for $^{96-97}$Kr agree with previous measurements, with our new $^{97}$Kr Penning-trap mass value three times more precise. The mass value of $^{98}$Kr is measured for the first time. The new mass surface, together with comparisons to beyond-mean-field theoretical predictions, suggests that collectivity persists for the ${Z=36}$ isotopes, blurring the apparent ``low-$Z$ boundary'' of this deformed region. |
| title | Extending the low-$Z$ "border'' of the $A=100$ region of deformation with precision mass spectrometry of $^{96-98}$Kr |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2509.05538 |