Di-triton molecular structure in6He
Di-triton molecular structure in6He
复制标题
6He 中的 Di-triton 分子结构
DOI：
10.1103/physrevc.67.051302
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发表时间：
2003
影响因子：
3.1
通讯作者：
M. Yosoi
中科院分区：
文献类型：
--
作者：
H. Akimune;T. Yamagata;S. Nakayama;Y. Arimoto;M. Fujiwara;K. Fushimi;K. Hara;M. Ohta;A. Shiokawa;Momoko Tanaka;H. Utsunomiya;K. Hara;H. Yoshida;M. Yosoi
用65 MeV/核子的束流研究了在t+t阈值以上的共振现象。通过观察二元Triton衰变，在${E}_{x}=18.0\ifmmode\pm\else\textpm\fi{}0.5\mathrm{MeV}$发现了一个新的显著共振，其宽度为$7.7\ifmmode\pm\else\textpm\fi{}1.0\mathrm{MeV}.$。由此得到的二元Triton衰变的分支比为$90\ifmmod\Pm\Else\TextPm\FI，这表明在18 MeV处的共振具有双Triton分子结构。
Resonances above the t+t threshold in ${}^{6}\mathrm{He}$ have been studied via the ${}^{6}\mathrm{Li}$${(}^{7}\mathrm{Li},$ ${}^{7}\mathrm{Be}$ $t)$${}^{3}\mathrm{H}$ reaction at $0\ifmmode^\circ\else\textdegree\fi{}$ taken with a ${}^{7}\mathrm{Li}$ beam of 65 MeV/nucleon. By observing the binary triton decay, a new prominent resonance is found at ${E}_{x}=18.0\ifmmode\pm\else\textpm\fi{}0.5\mathrm{MeV}$ with a width of $7.7\ifmmode\pm\else\textpm\fi{}1.0\mathrm{MeV}.$ The branching ratio for the binary triton decay from this resonance is deduced to be $90\ifmmode\pm\else\textpm\fi{}10%,$ suggesting that the resonance at 18 MeV has a di-triton molecular structure.