Nature of 10 MeV state in 12C
Nature of 10 MeV state in 12C
复制标题
DOI：
10.1088/1742-6596/436/1/012006
复制
发表时间：
2013-04
期刊：
影响因子：
--
通讯作者：
M. Itoh;H. Akimune;M. Fujiwara;U. Garg;T. Kawabata;K. Kawase;T. Murakami;K. Nakanishi;Y. Nakatsugawa;H. Sakaguchi;S. Terashima;M. Uchida;Y. Yasuda;M. Yosoi;J. Zenihiro
中科院分区：
文献类型：
--
作者：
M. Itoh;H. Akimune;M. Fujiwara;U. Garg;T. Kawabata;K. Kawase;T. Murakami;K. Nakanishi;Y. Nakatsugawa;H. Sakaguchi;S. Terashima;M. Uchida;Y. Yasuda;M. Yosoi;J. Zenihiro
利用386 MeV α粒子在~（12）C上的非弹性散射，对衰变α粒子进行了符合测量。我们从衰变α粒子的角关联函数中获得了我们在以前的工作中发现的9.84 MeV的第二个2+态的进一步证据。得到了12 C中10 MeV ~（12）Be ~（2+）的α衰变到基态和第一激发态的符合能谱。他们指出，10 MeV的宽0+态由两个分量组成。较低的0+态只α衰变到8Be的基态。在8Be沟道第一激发态的符合谱中，高0+态在10.8MeV处有一个明显的峰，峰宽为0.4MeV。它们具有一致的性质预测的一个更高的节点态的Hoyle状态和一个线性的3α状态，分别。
We performed a coincidence measurement of decay-α particles by using inelastic scattering of 386 MeV α particles on 12C. We obtained further evidence for the second 2+ state at 9.84 MeV, which we found in previous work, from angular correlation functions for decay-α particles. The coincidence energy spectra with the α-decay to the ground state and the first excited 2+ state in 8Be from the 10 MeV states in 12C were obtained. They indicated the broad 0+ state at 10 MeV consists of two components. The lower 0+ state do α decay to the ground state of 8Be only. The higher 0+ state has a distinct peak at 10.8 MeV with a width of 0.4 MeV in the coincidence spectrum for the first excited state of 8Be channel. They have consistent properties predicted for a higher nodal state of the Hoyle state and a linear-like 3α state, respectively.