摘要
Exploring the limits of neutron binding in atomic nuclei remains a central focus of nuclear physics.However,the experimental determination of the neutron drip line is challenging because of the minuscule production cross sections of the most neutron-rich isotopes.We investigate the effectiveness of multi-step fragmentation for producing extremely neutron-rich nuclides at relativistic energies.We demonstrate that multi-step fragmentation dominates over single-step fragmentation in thick-target experiments and can enhance the yields of drip-line nuclei by several orders of magnitude in a realistic experiment using fragment separators.Such enhancements open new possibilities for locating the drip lines above sodium and thus significantly expand the research horizon.
基金
supported by the National Natural Science Foundation of China(Nos.12325506,11961141004,12335009,12175009).
