α-decay half-lives of superheavy nuclei and general predictions

  • The generalized liquid drop model (GLDM) and the cluster model have been employed to calculate the α-decay half-lives of superheavy nuclei (SHN) using the experimental α-decay Q values. The results of the cluster model are slightly poorer than those from the GLDM if experimental $Q$ values are used. The prediction powers of these two models with theoretical $Q$ values
    from Audi et al. (QAudi) and Muntian et al. (QM) have been tested to find that the cluster model with QAudi and QM could provide reliable results for Z>112 but the GLDM with QAudi for Z≤112. The half-lives of some still unknown nuclei are predicted by these two models and these results may be useful for future experimental assignment and identification.

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  • [1] . Nilsson S G et al. Nucl. Phys. A, 1969, 131 : 12. Mosel U, Greiner W. Z. Phys., 1969, 111: 2613. Gamow G. Z. Phys., 1928, 51: 2044. Condon E U, Gurney R W. Nature, 1928, 122: 4395. Sobiczewski A, Patyk Z, Cwiok S. Phys. Lett. B, 1989, 224:16. Buck B, Merchant A C, Perez S M. Phys. Rev. C, 1992,45: 22477. Buck B, Merchant A C, Perez S M. Phys. Rev. Lett., 1994,72: 13268. XU Chang, REN Zhong-Zhou. Phys. Rev. C, 2004, 69:0246149. XU Chang, REN Zhong-Zhou. HEP NP, 2003, 27: 1089(in Chinese)10. ZHANG H F, ZUO W, LI J Q, Royer G. Phys. Rev. C,2006, 74: 01730411. ZHANG H F et al. Commun. Theor. Phys., 2007, 48: 54512. Royer G, Gherghescu R A. Nucl. Phys. A, 2002, 699: 47913. Royer G, Zbiri K, Bonilla C. Nucl. Phys. A, 2004, 730: 35514. Royer G. J. Phys. G: Nucl. Part. Phys., 2000, 26: 114915. ZHANG H F et al. HEP NP, 2006, 30: 220 (in Chinese)16. ZHANG H F, Royer G. Phys. Rev. C, 2008, 76: 04730417. Samanta C, Roy Chowdhury P, Basu D N. Nucl. Phys. A,2007, 789: 14218. Roy Chowdhury P, Samanta C, Basu D N. Phys. Rev. C,2006, 73: 01461219. Royer G, Remaud B. Nucl. Phys. A, 1985, 444: 47720. Blocki J, Randrup J, Swiatecki W J, Tsang C F. Ann.Phys.(NY) A, 1977, 105: 42721. Feldmeier H. 12th Summer School on Nuclear Physics.Mikolajki, Poland, 197922. Audi G, Wapstra A H, Thibault C. Nucl. Phys. A, 2003,729: 33723. Muntian I, Patyk Z, Sobiczewski A. Acta Phys. Pol. B,2001, 32: 69124. Muntian I, Hofmann S, Patyk Z, Sobiczewski A. Acta Phys.Pol. B, 2003, 34: 207325. Muntian I, Patyk Z, Sobiczewski A. Phys. Atom. Nucl.,2003, 66: 1015
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DONG Jian-Min, ZHANG Hong-Fei, WANG Yan-Zhao, ZUO Wei, SU Xin-Ning and LI Jun-Qing. α-decay half-lives of superheavy nuclei and general predictions[J]. Chinese Physics C, 2009, 33(8): 633-638. doi: 10.1088/1674-1137/33/8/007
DONG Jian-Min, ZHANG Hong-Fei, WANG Yan-Zhao, ZUO Wei, SU Xin-Ning and LI Jun-Qing. α-decay half-lives of superheavy nuclei and general predictions[J]. Chinese Physics C, 2009, 33(8): 633-638.  doi: 10.1088/1674-1137/33/8/007 shu
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Received: 2008-11-10
Revised: 2009-01-12
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α-decay half-lives of superheavy nuclei and general predictions

    Corresponding author: ZHANG Hong-Fei,

Abstract: 

The generalized liquid drop model (GLDM) and the cluster model have been employed to calculate the α-decay half-lives of superheavy nuclei (SHN) using the experimental α-decay Q values. The results of the cluster model are slightly poorer than those from the GLDM if experimental $Q$ values are used. The prediction powers of these two models with theoretical $Q$ values
from Audi et al. (QAudi) and Muntian et al. (QM) have been tested to find that the cluster model with QAudi and QM could provide reliable results for Z>112 but the GLDM with QAudi for Z≤112. The half-lives of some still unknown nuclei are predicted by these two models and these results may be useful for future experimental assignment and identification.

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