α decay energies and half-lives from a macroscopic-microscopic model

  • α decay energies of 323 heavy nuclei with Z≥82 are evaluated with a macroscopic-microscopic model. In this model, the macroscopic part is treated by the continuous medium model and the microscopic part consists of shell and pairing corrections based on the Nilsson potential. α decay half-lives are calculated by Viola-Seaborg formula. The results of α decay energies and half-lives are compared with experimental values and satisfactory agreement is found. The recoiling effect of the daughter nucleus on α decay half-life is also discussed.

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  • [1] . Viola V E, Seaborg G T. J. Inorg. Nucl. Chem., 1966, 28:7412. MENG J, Takigawa N. Phys. Rev. C, 1999, 61: 0643193. REN Z Z, TOKI H. Nucl. Phys. A, 2001, 689: 691-7064. GENG L S, TOKI H, MENG J. Phys. Rev. C, 2003, 68:0613035. DONG T K, REN Z Z. HEP NP, 2006, 30(2): 113-117(in Chinese)6. ZHI Q J, REN Z Z, ZHANG X P et al. Chinese Physics C(HEP NP), 2008, 32(1): 40-437. XU C, REN Z Z. Nucl. Phys. A, 2005, 753: 174-1858. XU C, REN Z Z. Phys. Rev. C, 2006, 73: 0413019. ZHANG H F, CHEN B Q, MA Z Y et al. HEP NP, 2006,30(3): 220-223 (in Chinese)10. ZHANG H F, ZUO W, LI J Q et al. Phys. Rev. C, 2006,74: 01730411. ZHANG H F, LI J Q, ZUOWet al. Commun. Theor. Phys.,2007, 48(2): 545-55212. PEI J C, XU F R, LIN Z J et al. Phys. Rev. C, 2007, 76:04432613. HU J M, ZHENG C K. Chinese Jorunal of Nuclear Physics,1985, 7(1): 1 (in Chinese)14. ZHENG C K, HU J M, XU F R. HEP NP, 1996, 20(4):317-323 (in Chinese)15. PENG J S, LI L L, ZHOU S G et al. Nucl. Phys. Rev. (inpress) (in Chinese)16. Audi G, Wapstra A H, Thibault C. Nucl. Phys. A, 2003,729: 33717. LU Xi-Ting, JIANG Dong-Xing, YE Yan-Lin. Nuclear Physcs (2nd edition). Beijing: Atomic Energy Press, 2001,115. (in Chinese)18. Sobiczewski A, Patyk Z, Cwiok S. Phys. Lett. B, 1989, 224:119. Hofmann S. Prog. Part. Nucl. Phys., 2001, 46: 29320. Oganessian Y T, Utyonkov V K, Lobanov Y V et al. Phys.Rev. C, 2006, 74: 04460221. Golashvili T V, Chechev V P, Patarakin O O et al. Nuclide Guide (3rd edition). Beijing: Atomic Energy Press, 2004(in Chinese)22. Oganessian Y T, Utyonkoy V K, Lobanov Y V et al. Phys.Rev. Lett., 1999, 83: 315423. Oganessian Y T, Utyonkoy V K, Lobanov Y V et al. Phys.Rev. C, 2004, 69: 021601
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PENG Jin-Song, LI Lu-Lu, ZHOU Shan-Gui and ZHAO En-Guang. α decay energies and half-lives from a macroscopic-microscopic model[J]. Chinese Physics C, 2008, 32(8): 634-638. doi: 10.1088/1674-1137/32/8/009
PENG Jin-Song, LI Lu-Lu, ZHOU Shan-Gui and ZHAO En-Guang. α decay energies and half-lives from a macroscopic-microscopic model[J]. Chinese Physics C, 2008, 32(8): 634-638.  doi: 10.1088/1674-1137/32/8/009 shu
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Received: 2008-02-14
Revised: 2008-04-10
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α decay energies and half-lives from a macroscopic-microscopic model

    Corresponding author: ZHAO En-Guang,

Abstract: 

α decay energies of 323 heavy nuclei with Z≥82 are evaluated with a macroscopic-microscopic model. In this model, the macroscopic part is treated by the continuous medium model and the microscopic part consists of shell and pairing corrections based on the Nilsson potential. α decay half-lives are calculated by Viola-Seaborg formula. The results of α decay energies and half-lives are compared with experimental values and satisfactory agreement is found. The recoiling effect of the daughter nucleus on α decay half-life is also discussed.

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