Alpha-cluster states in 18O
Alpha-cluster states in 18O
复制标题
18O 的α星团态
DOI：
10.1134/1.1992561
复制
发表时间：
2005
影响因子：
0.4
通讯作者：
Boris Skorodumov
中科院分区：
文献类型：
--
作者：
V. Z. Goldberg;K. ;T. Lönnroth;P. Manng̊ard;Boris Skorodumov
在实验室能量范围16.3- 19.2MeV内，用厚靶背散射技术测量了α粒子与~（14）C弹性散射的激发函数。这些数据与G.L.的旧低能数据一起进行了分析。Morganet al.in的R-矩阵形式主义的框架。在9-20 MeV激发范围内，对~（18）O的32个态进行了自旋宇称归属。还提出了状态宽度的估计。0+和0−α-团簇带似乎在5.6 MeV（如16 O和20 Ne）处分离得很好。我们还没有发现M.我们观察到18 O中α-团簇能级加倍的效应，与22 Ne中的结果相似。
The excitation function of elasticα-particle scattering on14C has been measured in the laboratory energy range 16.3–19.2 MeV using a backscattering technique with a thick target. These data were analyzed together with the old low-energy data of G.L. Morganet al.in the framework of theR-matrix formalism. Spin-parity assignments were made for 32 states in18O in the excitation range 9–20 MeV. The estimates of the widths of the states are also presented. The 0+and 0−α-cluster bands appeared to be well separated by 5.6 MeV (as in16O and20Ne). We have not found a confirmation of existence of the negative-parity molecular states proposed by M. Gaiet al.We observed an effect of a doubling ofα-cluster levels in18O similar to that found in22Ne.