تقرير
Beta-delayed-neutron studies of $^{135,136}$Sb and $^{140}$I performed with trapped ions
| العنوان: | Beta-delayed-neutron studies of $^{135,136}$Sb and $^{140}$I performed with trapped ions |
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| المؤلفون: | Alan, B. S., Caldwell, S. A., Scielzo, N. D., Czeszumska, A., Clark, J. A., Savard, G., Aprahamian, A., Burkey, M. T., Chiara, C. J., Harker, J., Levand, A. F., Marley, S. T., Morgan, G. E., Munson, J. M., Norman, E. B., Nystrom, A., Orford, R., Padgett, S. W., Galvan, A. Perez, Sharma, K. S., Siegl, K., Strauss, S. Y. |
| المصدر: | Phys. Rev. C 101, 025806 (2020) |
| سنة النشر: | 2019 |
| المجموعة: | Astrophysics Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment, Astrophysics - Instrumentation and Methods for Astrophysics |
| الوصف: | Beta-delayed-neutron ($\beta$n) spectroscopy was performed using the Beta-decay Paul Trap and an array of radiation detectors. The $\beta$n branching ratios and energy spectra for $^{135,136}$Sb and $^{140}$I were obtained by measuring the time of flight of recoil ions emerging from the trapped ion cloud. These nuclei are located at the edge of an isotopic region identified as having $\beta$n branching ratios that impact the r-process abundance pattern around the A~130 peak. For $^{135,136}$Sb and $^{140}$I, $\beta$n branching ratios of 14.6(11)%, 17.6(28)%, and 7.6(28)% were determined, respectively. The $\beta$n energy spectra obtained for $^{135}$Sb and $^{140}$I are compared with results from direct neutron measurements, and the $\beta$n energy spectrum for $^{136}$Sb has been measured for the first time. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevC.101.025806 |
| الوصول الحر: | http://arxiv.org/abs/1904.06623Test |
| رقم الانضمام: | edsarx.1904.06623 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevC.101.025806 |
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