Evidence for a new 12C state at 13.3 MeV
Evidence for a new 12C state at 13.3 MeV
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DOI：
10.1103/physrevc.83.034314
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发表时间：
2011-03-15
影响因子：
3.1
通讯作者：
Ziman, V. A.
中科院分区：
文献类型：
--
作者：
Freer, M.;Almaraz-Calderon, S.;Ziman, V. A.
使用四个双面条形检测器阵列测量两个反应 C-12(He-4, He-4+He-4+He-4)He-4 和 Be-9(He-4, He-4+He-4+He-4)n。 C-12 中的激发态通过 a 衰变通过 Be-8 基态进行的条件进行过滤重建。在两次测量中，都发现了 13.3(0.2) MeV 处存在宽度为 1.7(0.2) MeV 的新态的证据。 C-12(He-4, He-4+He-4+He-4)He-4 反应的角相关测量表明该状态可能具有 J(pi) = 4(+)。
The two reactions C-12(He-4, He-4+He-4+He-4)He-4 and Be-9(He-4, He-4+He-4+He-4)n were measured using an array of four double-sided strip detectors. Excited states in C-12 were reconstructed filtered by the condition that the a-decay proceeded via the Be-8 ground state. In both measurements, evidence was found for a new state at 13.3(0.2) MeV with a width 1.7(0.2) MeV. Angular correlation measurements from the C-12(He-4, He-4+He-4+He-4)He-4 reaction indicates that the state may have J(pi) = 4(+).