Chinese Physics C > 2003, Vol. 27 > Issue(12): 1089-1094

Study on the α-Decay Lifetimes of Superheavy Elements

XU Chang,
REN Zhong-Zhou^,

Department of Physics,Nanjing University,Nanjing 210008,China2 Center of Theoretical Nuclear Physics,National Laboratory of Heavy-Ion Accelerator,Lanzhou 730000,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The α-decay lifetimes of the newly synthesized superheavy elements are calculated using the α-cluster model and the results are in good agreement with experimental data. This indicates the reliability of the α-cluster model. The theoretical lifetimes based on the Hartree-Fock nuclear mass table are also calculated, which are useful for further theoretical and experimental researches on superheavy nuclei. We have also analyzed the α-decay energies, the separation energies of the last two neutrons and the separation energies of the last two protons of the superheavy nuclei. The shell effect at Z=114 and N=184 is discussed.

References

[1]

. Hofmann S et al.Z .Phys.,1995,A350:2772. Hofmann S et al.Z .Phys.,1995,A350:281 3. Hofmann et al.Z .Phys.,1996,A354:2294. Hofmann S et al.Euro.Phys.J.,2001,A10:55. Hofmann S .Rep.Prog.Phys.,1998,61:6396. Oganessian Yu Ts et al.Nature,1999,400:2427. Oganessian Yu Ts et al.Phys.Rev.,Lett.,1999,83:31548. Oganessian Yu Ts et al.Phys.Rev.,2001,C63:011301(R)9. Oganessian Yu Ts et al.Phys.Rev.,2000,C62:041604(R)10. GAN Z G ,QIN Z ,FAN H M et al.Eur.Phys.J.,2001,A10:2111. REN Zhong-Zhou,XU Gong-Ou.Phys.Rev.,1987,C36:45612. REN Zhong-Zhou,XU Gong-Ou.Phys.Rev.,1988,C38:107813. REN Zhong-Zhou,XU Gong-Ou.J.Phys.,1989,G15:46514. Buck B ,Merchant A C .Atomic Data and Nuclear Data Table.,1993,54:5315. Goriely S ,Tondeur F ,Pearson J M .Atomic Data and Nuclear Data Table,2001,77:31116. Dullmann ch E et al.Nature.,2002,V418:859 17. Wilk P A et al.Phys.Rev.Lett.,2000,85:269718. Audi G et al.Nucl.Phys.,1997,A624:1 19. Audi G ,Wapstra.Nucl.Phys.,1993,A565:1

[1]	ZHOU Xiao-Hong,GAN Zai-Guo,XU Hu-Shan,,,,. Alpha Decay Energies and Half-lives for Possibly Synthesized Superheavy Elements. Chinese Physics C, 2008, 32(1): 40-43.doi:10.1088/1674-1137/32/1/009
[2]	ZHOU Fang,GUO Jian-You. Ground-State Properties of Superheavy Nuclide²⁹⁴118 and It's α-Decay Chain. Chinese Physics C, 2007, 31(12): 1106-1108.
[3]	ZHANG Yu-Mei,XU Fu-Rong. β-Decay of Neutron-Rich Nucleus¹⁸N. Chinese Physics C, 2006, 30(S2): 115-117.
[4]	ZHI Qi-Jun,REN Zhong-Zhou. Systematic Calculation on Ground State Properties of Superheavy Even-Even Nuclei with Macroscopic-Microscopic Model. Chinese Physics C, 2006, 30(1): 32-37.
[5]	ZHI Qi-Jun,REN Zhong-Zhou. Macroscopic-Microscopic Calculation on the Ground State Properties of Superheavy Odd-Even Nuclei. Chinese Physics C, 2006, 30(9): 858-862.
[6]	ZHANG Xiao-Ping,REN Zhong-Zhou. Theoretical Study on the Alpha Decay Half-Life of Superheavy Elements with the Effective Liquid Drop Model. Chinese Physics C, 2006, 30(1): 47-51.
[7]	WANG Shi-Hu,GUO Jian-You. Relativistic Mean Field Study of Clustering in Heavy Nuclei. Chinese Physics C, 2006, 30(S2): 87-89.
[8]	ZHANG Hong-Fei,CHEN Bao-Qiu,MA Zhong-Yu,ZUO Wei,LI Jun-Qing,REN Xiu-Zai. Properties of the Superheavy Nuclei 288115 and Its α-Decay Chain in a Generalized Liquid-Drop Model. Chinese Physics C, 2006, 30(3): 220-223.
[9]	LIU Zu-Hua,BAO Jing-Dong. Synthesis and Decay of Superheavy Nuclei in the Deformed Region. Chinese Physics C, 2006, 30(S2): 118-120.
[10]	ZHANG Wei,MENG Jie,ZHANG Shuang-Quan. Production Cross Section of Superheavy Nuclei in Cold Fusion Reactions Based on the Relativistic Mean Field Theory. Chinese Physics C, 2004, 28(1): 61-68.
[11]	XU Chang,REN Zhong-Zhou. Study on the Unfavored α-Decay Lifetimes around a Closed Shell. Chinese Physics C, 2004, 28(5): 502-506.
[12]	REN Zhong-Zhou,Xu Chang,Wang Zai-Jun. Cluster Radioactivity of Heavy Nuclei. Chinese Physics C, 2004, 28(12): 1245-1247.
[13]	CHEN Ding-Han,TAI Fei,REN Zhong-Zhou. Systematic Calculation on the Ground State Properties of Odd-Even Superheavy Nuclei with Relativistic Mean-Field Theory. Chinese Physics C, 2003, 27(8): 707-711.
[14]	Zhang Yang,Liu Lianshou. The Clustered Production of Final Particles and ForwardBackward Correlation in High Energy pp Collision. Chinese Physics C, 1994, 18(4): 326-333.
[15]	Wu Huifang,Song Changliang. The 2νββ Decay Lifetime and the Shell Model Wavefunction in⁸²Se. Chinese Physics C, 1994, 18(4): 366-370.
[16]	REN Zhong-Zhou,XU Gong-Ou. ALPHA CLUSTERING WITH PAIRING FORCES DEPENDENT OF SPIN AND ISOSPIN. Chinese Physics C, 1990, 14(1): 92-96.
[17]	WANG Su-Fang,CAI Wei,ZHENG Ji-Wen,LIANG Guo-Zhao. STUDY ON CROSS SECTION OF THE SHORT LIFE EVAPORATION RESIDUES IN REACTION¹²C+¹¹²Sn. Chinese Physics C, 1989, 13(7): 627-631.
[18]	LIU Shi-Jie,XIE Bao-Zhen,WU Yue,TANG Xiao-Wei. SEARCH FOR SUPERHEAVY NUCLEARITES IN METEORITES BY RUTHERFORD BACKSCATTERING. Chinese Physics C, 1989, 13(2): 103-105.
[19]	WU Hua-Chuan. AN UNIFIED DESCRIPTION OF THE α-CLUSTERING AND COLLECTIVE EXCITATIONS IN HEAVY EVEN-EVEN NUCLEI. Chinese Physics C, 1986, 10(5): 605-612.
[20]	JIU ZHONG-PIN,LIU LIAN-SOU,LIU BAO-HUA. A TRANSLATIONAL INVARIANT BAG MODEL AND THE PROTON LIFETIME. Chinese Physics C, 1982, 6(6): 702-710.

Access

Get Citation

XU Chang and REN Zhong-Zhou. Study on the α-Decay Lifetimes of Superheavy Elements[J]. Chinese Physics C, 2003, 27(12): 1089-1094.

XU Chang and REN Zhong-Zhou. Study on the α-Decay Lifetimes of Superheavy Elements[J]. Chinese Physics C, 2003, 27(12): 1089-1094. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2003-04-21
Revised: 1900-01-01

Article Metric

Article Views(4059)
PDF Downloads(624)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Study on the α-Decay Lifetimes of Superheavy Elements

XU Chang
REN Zhong-Zhou^,

Corresponding author:REN Zhong-Zhou,

Department of Physics,Nanjing University,Nanjing 210008,China2 Center of Theoretical Nuclear Physics,National Laboratory of Heavy-Ion Accelerator,Lanzhou 730000,China

Received Date:2003-04-21
Accepted Date:1900-01-01
Available Online:2003-12-05

Abstract:The α-decay lifetimes of the newly synthesized superheavy elements are calculated using the α-cluster model and the results are in good agreement with experimental data. This indicates the reliability of the α-cluster model. The theoretical lifetimes based on the Hartree-Fock nuclear mass table are also calculated, which are useful for further theoretical and experimental researches on superheavy nuclei. We have also analyzed the α-decay energies, the separation energies of the last two neutrons and the separation energies of the last two protons of the superheavy nuclei. The shell effect at Z=114 and N=184 is discussed.