Shell Anomalies of Mg, Si and S Isotopes

ZHONG Xian-Hui; TAN Yu-Hong; NING Ping-Zhi

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2003, Vol. 27> Issue(9) : 794-797

Shell Anomalies of Mg, Si and S Isotopes

Department of Physics, Nankai University, Tianjin 300071, China

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Abstract：
The shell closure and shell anomalies of Mg, Si and S isotopes are investigated in the framework of relativistic mean-field theory. From two-proton and two-neutron separation gaps, we find that (1) there exist obvious shell effects at N=12, 16 in Mg isotopes, at N=14 in Si isotopes, and at N=16 in S isotopes, (2) the shell structure of Si isotopes at N=28 does not disappear, (3) the shell effects of Mg, Si and S isotopes at 20 are not very obvious.

References

[1]

. Werner T R ,Sheikh J A et al.Nucl.Phys.,1996,A597:3272. Lalazissis G A ,Vretenar D et al.Phys.Rev.,1999,C60:0143103. REN Zhong-Zhou,ZHU Z Y et al.Phys.Lett.,1996,B380:241 4. Grawe H ,Lewitowicz M .Nucl.Phys.,2001,A693:116 5. Prisciandaro J I ,Mantica P F et al.Phys.Lett.,2001,B510:176. Grawe H et al.RISING Experimental Proposal,GSI,2002 7. deAngelis G et al.RISING Experimental Proposal,GSI,2002 8. Gambhir Y K ,Ring P et al.Ann.Phys.,1990,198:1329. RingP ,GambhirYKetal.Comp.Phys.Comm.,1997,105:77 10. ZHONG Xian-Hui et al.HEP NP ,2003,27(7):598(in Chinese)(钟显辉等.高能物理与核物理,2003,27(7):598)11. Lalazissis G A ,Knig J et al.Phys.Rev.,1997,C56:540 12. Wapstra A H ,Audi G .Nucl.Phys.,1985,A432:5513. Mller P ,Jr Nix.Nucl.Phys.,1992,A536:2014. Rutz K ,Bender M et al.Phys.Rev.,1997,C56:238 15. Bender M ,Cornelius T et al.nucl th0110057 16. Bender M ,Rutz K et al.nucl th990603017. Audi G,Wapstra A H et al.Nucl.Phys.,1993,A565:1 18. Lalazissis G A ,Farhan A R et al.nucl th/9711038 19. Mller P ,Jr Nix et al.Atomic Data and Nuclear Data Tables,1995,61:127

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ZHONG Xian-Hui, TAN Yu-Hong and NING Ping-Zhi. Shell Anomalies of Mg, Si and S Isotopes[J]. Chinese Physics C, 2003, 27(9): 794-797.

ZHONG Xian-Hui, TAN Yu-Hong and NING Ping-Zhi. Shell Anomalies of Mg, Si and S Isotopes[J]. Chinese Physics C, 2003, 27(9): 794-797. shu

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Received: 2002-12-30
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Shell Anomalies of Mg, Si and S Isotopes

Corresponding author: ZHONG Xian-Hui,

Department of Physics, Nankai University, Tianjin 300071, China

Received Date: 2002-12-30
Accepted Date: 1900-01-01
Available Online: 2003-09-05

Abstract: The shell closure and shell anomalies of Mg, Si and S isotopes are investigated in the framework of relativistic mean-field theory. From two-proton and two-neutron separation gaps, we find that (1) there exist obvious shell effects at N=12, 16 in Mg isotopes, at N=14 in Si isotopes, and at N=16 in S isotopes, (2) the shell structure of Si isotopes at N=28 does not disappear, (3) the shell effects of Mg, Si and S isotopes at 20 are not very obvious.