arXiv 1704.005472017-04-03nucl-ex

用全吸收$γ$ -射线光谱法研究$^{100}$-Tc的$β$-衰变

Study of the $β$-decay of $^{100}$Tc with Total Absorption $γ$-Ray Spectroscopy

V. Guadilla, A. Algora, J. L. Tain, J. Agramunt, D. Jordan, A. Montaner-Pizá, S. E. A. Orrigo, B. Rubio, E. Valencia, J. Suhonen, O. Civitarese, J. Äystö, J. A.… 展开作者

V. Guadilla, A. Algora, J. L. Tain, J. Agramunt, D. Jordan, A. Montaner-Pizá, S. E. A. Orrigo, B. Rubio, E. Valencia, J. Suhonen, O. Civitarese, J. Äystö, J. A. Briz, A. Cucoanes, T. Eronen, M. Estienne, M. Fallot, L. M. Fraile, E. Ganioglu, W. Gelletly, D. Gorelov, J. Hakala, A. Jokinen, A. Kankainen, V. Kolhinen, J. Koponen, M. Lebois, T. Martinez, M. Monserrate, I. Moore, E. Nácher, H. Penttilä, I. Pohjalainen, A. Porta, J. Reinikainen, M. Reponen, S. Rinta-Antila, K. Rytkönen, T. Shiba, V. Sonnenschein, A. A. Sonzogni, V. Vedia, A. Voss, J. N. Wilson, A. -A. Zakari-Issoufou

备注：: submitted to Physical Review C
发表信息：: Phys. Rev. C 96, 014319 (2017)
DOI：: 10.1103/PhysRevC.96.014319

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摘要：

利用IGISOL的全吸收γ射线谱技术研究了100 Tc的\b{eta}衰变。在这项工作中，新的DTAS光谱仪符合一个圆柱形塑料\b{eta}检测器已被采用。从分析中得到的\b{eta} -强度的基态是在良好的协议与以前的高分辨率测量。然而，从该实验中推导出了在高激发能下对第一激发态的馈电以及对新能级的弱馈电的差异。在准粒子无规相近似（QRPA）框架下进行的理论计算也被报道.比较这些计算与我们的测量作为一个基准计算的双\b{eta} -衰变的100钼。

英文摘要：

The \b{eta}-decay of 100 Tc has been studied using the Total Absorption γ-Ray Spectroscopy technique at IGISOL. In this work the new DTAS spectrometer in coincidence with a cylindrical plastic \b{eta} detector has been employed. The \b{eta}-intensity to the ground state obtained from the analysis is in good agreement with previous high-resolution measurements. However, differences in the feeding to the first excited state as well as weak feeding to a new level at high excitation energy have been deduced from this experiment. Theoretical calculations performed in the quasiparticle random- phase approximation (QRPA) framework are also reported. Comparison of these calculations with our measurement serves as a benchmark for calculations of the double \b{eta}-decay of 100 Mo.

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