Rearrangement of valence neutrons in the neutrinoless double-$\beta$ decay of $^{136}$Xe
| Autor: | Szwec, S. V., Kay, B. P., Cocolios, T. E., Entwisle, J. P., Freeman, S. J., Gaffney, L. P., Guimarães, V., Hammache, F., McKee, P. P., Parr, E., Portail, C., Schiffer, J. P., de Séréville, N., Sharp, D. K., Smith, J. F., Stefan, I. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Phys. Rev. C 94, 054314 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.94.054314 |
| Popis: | A quantitative description of the change in ground-state neutron occupancies between $^{136}$Xe and $^{136}$Ba, the initial and final state in the neutrinoless double-$\beta$ decay of $^{136}$Xe, has been extracted from precision measurements of the cross sections of single-neutron adding and -removing reactions. Comparisons are made to recent theoretical calculations of the same properties using various nuclear-structure models. These are the same calculations used to determine the magnitude of the nuclear matrix elements for the process, which at present disagree with each other by factors of 2 or 3. The experimental neutron occupancies show some disagreement with the theoretical calculations. Comment: 7 pages, 3 figures, 1 table |
| Databáze: | arXiv |
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