The existence of magic numbers of protons and neutrons in nuclei is essential for understanding the nuclear structure and fundamental nuclear forces.Over decades,researchers have conducted theoretical and experimental...The existence of magic numbers of protons and neutrons in nuclei is essential for understanding the nuclear structure and fundamental nuclear forces.Over decades,researchers have conducted theoretical and experimental studies on a new magic number,Z(N)=6,focusing on observables such as radii,binding energy,electromagnetic transition,and nucleon separation energies.We performed ab initio no-core shell model calculations for the occupation numbers of the lowest single particle states in the ground states of Z(N)=6 and Z(N)=8 isotopes(isotones).The results of our calculations do not support Z(N)=6 as a magic number over a range of atomic numbers.However,14C and 14O exhibit the characteristics of double-magic nuclei.展开更多
基金partially supported by the National Natural Science Foundation of China(Grant Nos.12175280,12250610193,12375143,11975282,11705240,11435014)the Natural Science Foundation of Gansu Province,China(Grant Nos.20JR10RA067,23JRRA675)+9 种基金the Chinese Academy of Sciences"Light of West China"Program,the Key Research Program of the Chinese Academy of Sciences(Grant Nos.ZDB-SLY-7020,XDPB15)the Foundation for Key Talents of Gansu Province by the Central Funds Guiding the Local Science and Technology Development of Gansu Province,China(Grant No.22ZY1QA006)the International Partnership Program of the Chinese Academy of Sciences(Grant No.016GJHZ2022103FN)the National Key R&D Program of China(Grant No.2023YFA1606903)the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB34000000)the Gansu International Collaboration and Talents Recruitment Base of Particle Physics(2023-2027)the US Department of Energy(Grant No.DE-SC0023692)the National Research Foundation of Korea(2013M7A1A1075764)The Chinese Academy of Sciences President’s International Fellowship Initiative(Grant Nos.2023VMA0013)provides financing for A.M.Shirokov's trip to China to participate in this worksupported by the Institute for Basic Science(IBS-R031-D1).
文摘The existence of magic numbers of protons and neutrons in nuclei is essential for understanding the nuclear structure and fundamental nuclear forces.Over decades,researchers have conducted theoretical and experimental studies on a new magic number,Z(N)=6,focusing on observables such as radii,binding energy,electromagnetic transition,and nucleon separation energies.We performed ab initio no-core shell model calculations for the occupation numbers of the lowest single particle states in the ground states of Z(N)=6 and Z(N)=8 isotopes(isotones).The results of our calculations do not support Z(N)=6 as a magic number over a range of atomic numbers.However,14C and 14O exhibit the characteristics of double-magic nuclei.
