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Ground-state mass of $^{22}$Al and test of state-of-the-art \textit{ab initio} calculations

Fuente: arXiv

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Bibliographic Details
Main Authors:	Sun, M. Z., Yu, Y., Wang, X. P., Wang, M., Li, J. G., Zhang, Y. H., Blaum, K., Chen, Z. Y., Chen, R. J., Deng, H. Y., Fu, C. Y., Ge, W. W., Huang, W. J., Jiao, H. Y., Li, H. H., Li, H. F., Luo, Y. F., Liao, T., Litvinov, Yu. A., Si, M., Shuai, P., Shi, J. Y., Wang, Q., Xing, Y. M., Xu, X., Xu, H. S., Xu, F. R., Yuan, Q., Yamaguchi, T., Yan, X. L., Yang, J. C., Yuan, Y. J., Zhou, X. H., Zhou, X., Zhang, M., Zeng, Q.
Format:	Preprint
Published:	2024
Subjects:	Nuclear Experiment
Online Access:	Acceder al recurso
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_version_	1866914653987143680
author	Sun, M. Z. Yu, Y. Wang, X. P. Wang, M. Li, J. G. Zhang, Y. H. Blaum, K. Chen, Z. Y. Chen, R. J. Deng, H. Y. Fu, C. Y. Ge, W. W. Huang, W. J. Jiao, H. Y. Li, H. H. Li, H. F. Luo, Y. F. Liao, T. Litvinov, Yu. A. Si, M. Shuai, P. Shi, J. Y. Wang, Q. Xing, Y. M. Xu, X. Xu, H. S. Xu, F. R. Yuan, Q. Yamaguchi, T. Yan, X. L. Yang, J. C. Yuan, Y. J. Zhou, X. H. Zhou, X. Zhang, M. Zeng, Q.
author_facet	Sun, M. Z. Yu, Y. Wang, X. P. Wang, M. Li, J. G. Zhang, Y. H. Blaum, K. Chen, Z. Y. Chen, R. J. Deng, H. Y. Fu, C. Y. Ge, W. W. Huang, W. J. Jiao, H. Y. Li, H. H. Li, H. F. Luo, Y. F. Liao, T. Litvinov, Yu. A. Si, M. Shuai, P. Shi, J. Y. Wang, Q. Xing, Y. M. Xu, X. Xu, H. S. Xu, F. R. Yuan, Q. Yamaguchi, T. Yan, X. L. Yang, J. C. Yuan, Y. J. Zhou, X. H. Zhou, X. Zhang, M. Zeng, Q.
contents	The ground-state mass excess of the $T_{z}=-2$ drip-line nucleus $^{22}$Al is measured for the first time to be $18103(10)$ keV using the newly-developed B$ρ$-defined isochronous mass spectrometry method at the cooler storage ring in Lanzhou. The new mass excess value allowed us to determine the excitation energies of the two low-lying $1^+$ states in $^{22}$Al with significantly reduced uncertainties of 51 keV. Comparing to the analogue states in its mirror nucleus $^{22}$F, the mirror energy differences of the two $1^+$ states in the $^{22}$Al-$^{22}$F mirror pair are determined to be $-625(51)$ keV and $-330(51)$ keV, respectively. The excitation energies and the mirror energy differences are used to test the state-of-the-art \textit{ab initio} valence-space in-medium similarity renormalization group calculations with four sets of interactions derived from the chiral effective field theory. The mechanism leading to the large mirror energy differences is investigated and attributed to the occupation of the $πs_{1/2}$ orbital.
format	Preprint
id	arxiv_https___arxiv_org_abs_2401_14704
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Ground-state mass of $^{22}$Al and test of state-of-the-art \textit{ab initio} calculations Sun, M. Z. Yu, Y. Wang, X. P. Wang, M. Li, J. G. Zhang, Y. H. Blaum, K. Chen, Z. Y. Chen, R. J. Deng, H. Y. Fu, C. Y. Ge, W. W. Huang, W. J. Jiao, H. Y. Li, H. H. Li, H. F. Luo, Y. F. Liao, T. Litvinov, Yu. A. Si, M. Shuai, P. Shi, J. Y. Wang, Q. Xing, Y. M. Xu, X. Xu, H. S. Xu, F. R. Yuan, Q. Yamaguchi, T. Yan, X. L. Yang, J. C. Yuan, Y. J. Zhou, X. H. Zhou, X. Zhang, M. Zeng, Q. Nuclear Experiment The ground-state mass excess of the $T_{z}=-2$ drip-line nucleus $^{22}$Al is measured for the first time to be $18103(10)$ keV using the newly-developed B$ρ$-defined isochronous mass spectrometry method at the cooler storage ring in Lanzhou. The new mass excess value allowed us to determine the excitation energies of the two low-lying $1^+$ states in $^{22}$Al with significantly reduced uncertainties of 51 keV. Comparing to the analogue states in its mirror nucleus $^{22}$F, the mirror energy differences of the two $1^+$ states in the $^{22}$Al-$^{22}$F mirror pair are determined to be $-625(51)$ keV and $-330(51)$ keV, respectively. The excitation energies and the mirror energy differences are used to test the state-of-the-art \textit{ab initio} valence-space in-medium similarity renormalization group calculations with four sets of interactions derived from the chiral effective field theory. The mechanism leading to the large mirror energy differences is investigated and attributed to the occupation of the $πs_{1/2}$ orbital.
title	Ground-state mass of $^{22}$Al and test of state-of-the-art \textit{ab initio} calculations
topic	Nuclear Experiment
url	https://arxiv.org/abs/2401.14704