تقرير
Half-Lives of Neutron Rich $^{130}$Cd and $^{131}$In
| العنوان: | Half-Lives of Neutron Rich $^{130}$Cd and $^{131}$In |
|---|---|
| المؤلفون: | Dunlop, R., Svensson, C. E., Andreoiu, C., Ball, G. C., Bernier, N., Bildstein, V., Bidaman, H., Boubel, P., Burbadge, C., Caballero-Folch, R., Dillmann, I., Dunlop, M. R., Evitts, L. J., Garcia, F. H., Garnsworthy, A. B., Garrett, P. E., Hackman, G., Hallam, S., Henderson, J., Ilyushkin, S., Jungclaus, A., Krücken, R., Lassen, J., Li, R., MacConnachie, E., MacLean, A. D., McGee, E., Moukaddam, M., Mücher, D., Olaizola, B., Ortner, K., Padilla-Rodal, E., Park, J., Paetkau, O., Pore, J. L., Radich, A. J., Ruotsalainen, P., Smallcombe, J., Smith, J. K., Teigelhöfer, A., Turko, J., Whitmore, K., Zidar, T. |
| سنة النشر: | 2018 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | The half-lives of isotopes around the $N=82$ shell closure are an important ingredient in astrophysical simulations and strongly influence the magnitude of the second $r$-process abundance peak in the $A\sim130$ region. The most neutron-rich $N=82$ nuclei are not accessible to the current generation of radioactive beam facilities and $r$-process simulations must therefore rely on calculations of the half-lives of the isotopes involved. Half-life measurements of the experimentally accessible nuclei in this region are important in order to benchmark these calculations. The half-life of $^{130}$Cd is particularly important as it is used to tune the Gamow-Teller quenching in shell-model calculations for the $\beta$ decay of other nuclei in this region. In this work, the GRIFFIN $\gamma$-ray spectrometer at the TRIUMF-ISAC facility was used to measure the half-life of $^{130}_{~48}$Cd$_{82}$ to be $T_{1/2}= 126(4)$ ms. In addition, the half-lives of the three $\beta$ decaying states of $^{131}_{~49}$In$_{82}$ were measured to be $T_{1/2}(1/2^-)=328(15)$ ms, $T_{1/2}(9/2^+)=265(8)$ ms, and $T_{1/2}(21/2^+)=323(50)$ ms, respectively, providing an important benchmark for half-life calculations in this region. Comment: Talk presented CIPANP2018. 9 pages, LaTeX, 5 pdf figures, 1 png figure |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1810.07089 |
| رقم الأكسشن: | edsarx.1810.07089 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |