Half-life determination of heavy ions in a storage ring considering feeding and depleting background processes
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arXiv
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| Format: | Preprint |
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2025
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| author | Chen, R. J. Leckenby, G. Sidhu, R. S. Glorius, J. Sanjari, M. S. Litvinov, Yu. A. Akinci, F. C. Bai, M. Blaum, K. Bosch, F. Brandau, C. Dickel, T. Dillmann, I. Dmytriiev, D. Faestermann, T. Forstner, O. Franczak, B. Gao, B. S. Geissel, H. Gernhäuser, R. Griffin, C. Gumberidze, A. Haettner, E. Heß, R. Hillenbrand, P. -M. Kienle, P. Korten, W. Kozhuharov, Ch. Kuzminchuk, N. Litvinov, S. Menz, E. Morgenroth, T. Nociforo, C. Nolden, F. Petridis, N. Popp, U. Purushothaman, S. Reifarth, R. Scheidenberger, C. Spillmann, U. Steck, M. Stöhlker, Th. Tanaka, Y. K. Trassinelli, M. Trotsenko, S. Varga, L. Wang, M. Weick, H. Woods, P. J. Yamaguchi, T. Zhang, Y. Zhao, J. |
| author_facet | Chen, R. J. Leckenby, G. Sidhu, R. S. Glorius, J. Sanjari, M. S. Litvinov, Yu. A. Akinci, F. C. Bai, M. Blaum, K. Bosch, F. Brandau, C. Dickel, T. Dillmann, I. Dmytriiev, D. Faestermann, T. Forstner, O. Franczak, B. Gao, B. S. Geissel, H. Gernhäuser, R. Griffin, C. Gumberidze, A. Haettner, E. Heß, R. Hillenbrand, P. -M. Kienle, P. Korten, W. Kozhuharov, Ch. Kuzminchuk, N. Litvinov, S. Menz, E. Morgenroth, T. Nociforo, C. Nolden, F. Petridis, N. Popp, U. Purushothaman, S. Reifarth, R. Scheidenberger, C. Spillmann, U. Steck, M. Stöhlker, Th. Tanaka, Y. K. Trassinelli, M. Trotsenko, S. Varga, L. Wang, M. Weick, H. Woods, P. J. Yamaguchi, T. Zhang, Y. Zhao, J. |
| contents | Heavy-ion storage rings have relatively large momentum acceptance which allows for multiple ion species to circulate at the same time. This needs to be considered in radioactive decay measurements of highly charged ions, where atomic charge exchange reactions can significantly alter the intensities of parent and daughter ions. In this study, we investigate this effect using the decay curves of ion numbers in the recent $^{205}$Tl$^{81+}$ bound-state beta decay experiment conducted using the Experimental Storage Ring at GSI Darmstadt. To understand the intricate dynamics of ion numbers, we present a set of differential equations that account for various atomic and nuclear reaction processes-bound-state beta decay, atomic electron recombination and capture, and electron ionization. By incorporating appropriate boundary conditions, we develop a set of differential equations that accurately simulate the decay curves of various simultaneously stored ions in the storage ring: $^{205}$Tl$^{81+}$, $^{205}$Pb$^{81+}$, $^{205}$Pb$^{82+}$, $^{200}$Hg$^{79+}$, and $^{200}$Hg$^{80+}$. Through a quantitative comparison between simulations and experimental data, we provide insights into the detailed reaction mechanisms governing stored heavy ions within the storage ring. Our approach effectively models charge-changing processes, reduces the complexity of the experimental setup, and provides a simpler method for measuring the decay half-lives of highly charged ions in storage rings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_04784 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Half-life determination of heavy ions in a storage ring considering feeding and depleting background processes Chen, R. J. Leckenby, G. Sidhu, R. S. Glorius, J. Sanjari, M. S. Litvinov, Yu. A. Akinci, F. C. Bai, M. Blaum, K. Bosch, F. Brandau, C. Dickel, T. Dillmann, I. Dmytriiev, D. Faestermann, T. Forstner, O. Franczak, B. Gao, B. S. Geissel, H. Gernhäuser, R. Griffin, C. Gumberidze, A. Haettner, E. Heß, R. Hillenbrand, P. -M. Kienle, P. Korten, W. Kozhuharov, Ch. Kuzminchuk, N. Litvinov, S. Menz, E. Morgenroth, T. Nociforo, C. Nolden, F. Petridis, N. Popp, U. Purushothaman, S. Reifarth, R. Scheidenberger, C. Spillmann, U. Steck, M. Stöhlker, Th. Tanaka, Y. K. Trassinelli, M. Trotsenko, S. Varga, L. Wang, M. Weick, H. Woods, P. J. Yamaguchi, T. Zhang, Y. Zhao, J. Nuclear Experiment Atomic Physics Heavy-ion storage rings have relatively large momentum acceptance which allows for multiple ion species to circulate at the same time. This needs to be considered in radioactive decay measurements of highly charged ions, where atomic charge exchange reactions can significantly alter the intensities of parent and daughter ions. In this study, we investigate this effect using the decay curves of ion numbers in the recent $^{205}$Tl$^{81+}$ bound-state beta decay experiment conducted using the Experimental Storage Ring at GSI Darmstadt. To understand the intricate dynamics of ion numbers, we present a set of differential equations that account for various atomic and nuclear reaction processes-bound-state beta decay, atomic electron recombination and capture, and electron ionization. By incorporating appropriate boundary conditions, we develop a set of differential equations that accurately simulate the decay curves of various simultaneously stored ions in the storage ring: $^{205}$Tl$^{81+}$, $^{205}$Pb$^{81+}$, $^{205}$Pb$^{82+}$, $^{200}$Hg$^{79+}$, and $^{200}$Hg$^{80+}$. Through a quantitative comparison between simulations and experimental data, we provide insights into the detailed reaction mechanisms governing stored heavy ions within the storage ring. Our approach effectively models charge-changing processes, reduces the complexity of the experimental setup, and provides a simpler method for measuring the decay half-lives of highly charged ions in storage rings. |
| title | Half-life determination of heavy ions in a storage ring considering feeding and depleting background processes |
| topic | Nuclear Experiment Atomic Physics |
| url | https://arxiv.org/abs/2506.04784 |