Light nuclei of even mass number in the Skyrme model
Light nuclei of even mass number in the Skyrme model
复制标题
Skyrme 模型中偶质量数的轻核
DOI：
10.1103/physrevc.80.034323
复制
发表时间：
2009
影响因子：
3.1
通讯作者：
Battye R
中科院分区：
文献类型：
--
作者：
Battye R
我们认为半经典刚体量子化的Skyrmion解决方案的质量数，和12。我们确定了每个Skyrmion的允许量子态，并发现它们通常与原子核的观测态相匹配。第一次精确地计算了这些Skyrmions的自旋和同位旋惯性张量，并用于确定量子态的激发能。我们计算能级分裂，使用适当选择的参数设置为每个质量数。我们发现良好的定性和令人鼓舞的定量协议与实验。特别是，铍-8和碳-12的转动带，沿着与同位旋1三重态和同位旋2五重态，特别好地再现。我们还预言了一些尚未被观测到的态的存在，并对一些观测到的态的未知量子数进行了预言。
We consider the semiclassical rigid-body quantization of Skyrmion solutions of mass numbers, and 12. We determine the allowed quantum states for each Skyrmion and find that they often match the observed states of nuclei. The spin and isospin inertia tensors of these Skyrmions are accurately calculated for the first time and are used to determine the excitation energies of the quantum states. We calculate the energy level splittings, using a suitably chosen parameter set for each mass number. We find good qualitative and encouraging quantitative agreement with experiment. In particular, the rotational bands of beryllium-8 and carbon-12, along with isospin 1 triplets and isospin 2 quintets, are especially well reproduced. We also predict the existence of states that have not yet been observed and make predictions for the unknown quantum numbers of some observed states.