تقرير
An alternative approach to populate and study the $^{229}$Th nuclear clock isomer
| العنوان: | An alternative approach to populate and study the $^{229}$Th nuclear clock isomer |
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| المؤلفون: | Verlinde, M., Kraemer, S., Moens, J., Chrysaldis, K., Correia, J. G., Cottenier, S., De Witte, H., Fedorov, D. V., Fedosseev, V. N, Ferrer, R., Fraile, L. M., Geldhof, S., Granados, C. A., Laatiaoui, M., Lima, T. A. L., Lin, P-C, Manea, V., Marsh, B. A., Moore, I., Pereira, L. M. C., Raeder, S., Bergh, P. Van den, Van Duppen, P., Vantomme, A., Verstraelen, E., Wahl, U., Wilkins, S. G. |
| المصدر: | Phys. Rev. C 100, 024315 (2019) |
| سنة النشر: | 2019 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | A new approach to observe the radiative decay of the $^{229}$Th nuclear isomer, and to determine its energy and radiative lifetime, is presented. Situated at a uniquely low excitation energy, this nuclear state might be a key ingredient for the development of a nuclear clock, a nuclear laser and the search for time variations of the fundamental constants. The isomer's $\gamma$ decay towards the ground state will be studied with a high-resolution VUV spectrometer after its production by the $\beta$ decay of $^{229}$Ac. The novel production method presents a number of advantages asserting its competitive nature with respect to the commonly used $^{233}$U $\alpha$-decay recoil source. In this paper, a feasibility analysis of this new concept, and an experimental investigation of its key ingredients, using a pure $^{229}$Ac ion beam produced at the ISOLDE radioactive beam facility, is reported. Comment: 11 pages, 5 figures, 2 tables |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevC.100.024315 |
| URL الوصول: | http://arxiv.org/abs/1904.10245 |
| رقم الأكسشن: | edsarx.1904.10245 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevC.100.024315 |
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