The spin-orbit(SO)interaction,a relativistic effect,plays a crucial role across many branches of physics—from elementary quark-gluon dynamics to macroscopic phenomena in condensed matter and optics.In nuclear physics...The spin-orbit(SO)interaction,a relativistic effect,plays a crucial role across many branches of physics—from elementary quark-gluon dynamics to macroscopic phenomena in condensed matter and optics.In nuclear physics,the strong SO interaction introduced by Mayer[1]and Jensen[2]provided the first successful explanation of nuclear magic numbers.Since then,the SO interaction has become a cornerstone of nuclear structure theory,governing shell structure,nuclear stability,and shell evolution.Because nuclei contain both neutrons and protons,the SO interaction may,in principle,exhibit an isospin dependence,referred to as the isovector spin-orbit(IVSO)interaction.Although conventional nuclear energy-density functionals(EDFs)usually assume the IVSO interaction to be weak,its actual strength remains poorly constrained due to the lack of clean and sensitive experimental probes[3].Here we show that parity-violating electron scattering(PVES)offers a new opportunity to probe the strength of the IVSO interaction.展开更多
基金supported in part by the National Natural Science Foundation of China(12235010,12575137,and 11905302)the National SKA Program of China(2020SKA0120300)the Science and Technology Commission of Shanghai Municipality(23JC1402700).
文摘The spin-orbit(SO)interaction,a relativistic effect,plays a crucial role across many branches of physics—from elementary quark-gluon dynamics to macroscopic phenomena in condensed matter and optics.In nuclear physics,the strong SO interaction introduced by Mayer[1]and Jensen[2]provided the first successful explanation of nuclear magic numbers.Since then,the SO interaction has become a cornerstone of nuclear structure theory,governing shell structure,nuclear stability,and shell evolution.Because nuclei contain both neutrons and protons,the SO interaction may,in principle,exhibit an isospin dependence,referred to as the isovector spin-orbit(IVSO)interaction.Although conventional nuclear energy-density functionals(EDFs)usually assume the IVSO interaction to be weak,its actual strength remains poorly constrained due to the lack of clean and sensitive experimental probes[3].Here we show that parity-violating electron scattering(PVES)offers a new opportunity to probe the strength of the IVSO interaction.
