Odd-even staggering for production cross sections of nuclei near the neutron drip-line

• 作者: Bo Mei
• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: NUCLEAR PHYSICS
• 页码范围: 139-144
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1137/ac06ab

摘要

In our previous studies[Phys.Rev.C 97,044619(2018);Phys.Rev.C 103,044610(2021)],a universal odd-even staggering(OES)has been observed in extensive cross sections of isotopes not far from stability,meas-ured for different fragmentation and spallation reactions.Four OES relations have been proposed on the basis of this OES universality.However,it is still unclear whether this OES universality and OES relations are applicable to many isotopes near the drip-lines.Here,the OES in recent experimental cross sections of very neutron-rich nuclei approaching the drip-line(from 76Ge,82Se+9Be)is quantitatively investigated,to further validate the OES univer-sality and OES relations.The OES magnitudes in these experimental data approaching the neutron drip-line gener-ally agree with those evaluated previously,mainly from experimental data near stability.New OES evaluations de-rived from these experimental data are also recommended for more exotic nuclei near the neutron drip-line,which extends the conclusions of our previous OES studies.In addition,the OES relation calculations are consistent with these experimental data of very neutron-rich nuclides according to their comparisons in this work.Finally,comparis-ons with additional experimental data(from 238U+9Be)also support that new OES evaluations and OES relation calculations can be applied for exotic nuclei near the neutron drip-line.