【摘要】 在相对论平均场模型的框架内,沿原子核的稳定线,以每隔4个质子或中子提取样本的方法,计算了核谱图上数十个原子核的对能,特别是研究了氧同位素偶-偶核的对能随核子数的变化规律,发现在固定能隙Δ的条件下,对能的大小和核的壳结构有关,由此提出了一种检验闭壳效应的简便方法,进而发现中子数N=6不仅在轻核的丰中子区是一个新幻数,而且在丰质子区也是一个可能的新幻数.更多还原

【Abstract】 Nuclear pairing energy of dozens of atomic nuclei in nuclear period chart are calculated along the stable line by extracting the swatch at a proton or neutron number interval of 4.Especially,we have studied the rule of pairing energy of the even-even nuclei of O isotopes changing with nucleon number under the relativistic mean-field model,and found,when energy gap Δ is fixed,the magnitude of nuclear pairing energy is related to nuclear shell structure.Thereof we propose a simple method to test closed shell,and further,we conclude that the neutron number N=6 is a new magic number not only in neutron-rich region,but also in proton-rich region of light nuclei.更多还原