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2024年10月30日

α particle preformation and shell effect for heavy andsuperheavy nuclei

  • The α particle preformation factor is extracted within a generalized liquid drop model for Z=84-92 isotopes and N=126, 128, 152, 162, 176, 184 isotones. The calculated results show clearly that the shell effects play a key role in α particle preformation. The closer the proton and neutron numbers are to the magic numbers, the more difficult the formation of the α cluster inside the mother nucleus is. The preformation factors of the isotopes reflect that N=126 is a magic number for Po, Rn, Ra, and Th isotopes, but for U isotopes the weakening of the influence of the N=126 shell closure is evident. The trend of the factors for N=126 and N=128 isotones also support this conclusion. We extend the calculations for N=152, 162, 176, 184 isotones to explore the magic numbers for heavy and superheavy nuclei, which are probably present near Z=108 to N=152, 162 isotones and Z=116 to N=176, 184 isotones. The results also show that another subshell closure may exist after Z=124 in the superheavy nuclei. This is useful for future experiments.
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  • [1] Z. Ren and G. Xu, Phys. Rev. C, 36: 456 (1987)
    [2] R. G. Lovas, R. J. Liotta, A. Insolia, K. Varga, and D. S.Delion, Phys. Rep., 294: 265 (1998)
    [3] F. Garcia, O. Rodriguez, M. Gonalves, S. B. Duarte, O. A. P. Tavares, and F. Guzman, J. Phys. G, 26: 755 (2000)
    [4] G. Audi, O. Bersillon, J. Blachot, and A. H. Wapstra, Nucl. Phys. A, 729: 3 (2003)
    [5] T. N. Ginter et al, Phys. Rev. C, 67: 064609 (2003)
    [6] P. E. Hodgson and E. Betak, Phys. Rep., 374: 1 (2003)
    [7] Z. G. Gan, J. S. Guo, X. L. Wu, Z. Qin, H. M. Fan, X. G. Lei, H. Y. Liu, B. Guo, H. G. Xu, R. F. Chen, C. F. Dong, F. M. Zhang, H. L. Wang, C. Y. Xie, Z. Q. Feng, Y. Zhen, L. T. Song, P. Luo, H. S. Xu, X. H. Zhou, G. M. Jin, and Z. Ren, Eur. Phys. J. A, 20: 385 (2004)
    [8] D. Seweryniak et al, Phys. Rev. C, 73: 061301(R) (2006)
    [9] A. P. Leppanen et al, Phys. Rev. C, 75: 054307 (2007)
    [10] Yu. Ts. Oganessian et al, Phys. Rev. C, 72: 034611 (2005); 74:044602 (2006)
    [11] P. Schuck, Y. Funaki, H. Horiuchi, G. Rpke, A. Tohsaki, and T. Yamada, Nuclear Physics A, 738(Supplement C): 245 94-100 (2004)
    [12] K. Morita et al, J. Phys. Soc. Jpn., 76: 045001 (2007)
    [13] Yu. Ts. Oganessian et al, Phys. Rev. C, 76: 011601(R) (2007)
    [14] G. Gamow, Z. Phys., 51: 204 (1928)
    [15] E. U. Condon and R. W. Gurney, Nature (London), 122: 439 (1928)
    [16] B. Buck, A. C. Merchant, and S. M. Perez, At. Data Nucl. Data Tables, 54: 53 (1993)
    [17] P. Mohr, Phys. Rev. C, 73: 031301(R) (2006)
    [18] D. N. Poenaru and M. Ivascu, Rev. Roum. Phys., 28: 309 (1983)
    [19] K. Varga, R. G. Lovas, and R. J. Liotta, Phys. Rev. Lett., 69:37 (1992)
    [20] G. Royer and B. Remaud, Nucl. Phys. A, 444: 447 (1985)
    [21] S. B. Duarte et al, At. Data Nucl. Data Tables, 80: 235 (2002)
    [22] D. N. Basu, Phys. Lett. B, 566: 90 (2003); P. Roy Chowdhury, D. N. Basu, and C. Samanta, Phys. Rev. C, 75: 047306 (2007)
    [23] B. A. Brown, Phys. Rev. C, 46: 811 (1992)
    [24] G. Royer, J. Phys. G, 26: 1149 (2000); G. Royer and R. Moustabchir, Nucl. Phys. A, 683: 182 (2001)
    [25] R. K. Gupta, M. Balasubramaniam, C. Mazzocchi, M. LaCommara, W. Scheid, Phys. Rev. C, 65: 024201 (2002)
    [26] D. N. Poenaru, I. H. Plonski, and W. Greiner, Phys. Rev. C, 74: 014312 (2006)
    [27] H. F. Zhang, W. Zuo, J. Q. Li, and G. Royer, Phys. Rev. C, 74: 017304 (2006)
    [28] H. F. Zhang and G. Royer, Phys. Rev. C, 76: 047304 (2007)
    [29] C. Xu and Z. Z. Ren, Phys. Rev. C, 74: 014304 (2006); Nucl. Phys. A, 760: 303 (2005)
    [30] J. C. Pei, F. R. Xu, Z. J. Lin, and E. G. Zhao, Phys. Rev. C, 76: 044326 (2007)
    [31] H. F. Zhang and G. Royer, Phys. Rev. C, 77: 054318 (2008)
    [32] L. Ma, Z. Y. Zhang, Z. G. Gan, H. B. Yang, L. Yu, J. Jiang, J. G. Wang, Y. L. Tian, Y. S. Wang, and S. Guo, Phys. Rev. C, 91: (2015)
    [33] M. Sun, Z. Liu, T. H. Huang et al, Physics Letters B, 771: 303 (2017)
    [34] G. Royer, J. Phys. G: Nucl. Part. Phys., 26 (2000)
    [35] P. Moller, A. J. Sierk, T. Ichikawa, and H. Sagawa, Atomic Data and Nuclear Data Tables, 109: 110 (2016)
    [36] G. Royer, Journal of Physics G Nuclear Particle Physics, 26:1149 (2000)
    [37] J. Khuyagbaatar, A. Yakushev, Ch. E. Dllmann et al, Physical Review Letters, 115: 242502 (2015)
    [38] R. Ferrer, A. Barzakh, B. Bastin et al, Nature Communications, 8: 14520 (2017)
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Yan-Wei Zhao, Shu-Qing Guo and Hong-Fei Zhang. α particle preformation and shell effect for heavy andsuperheavy nuclei[J]. Chinese Physics C, 2018, 42(7): 074103. doi: 10.1088/1674-1137/42/7/074103
Yan-Wei Zhao, Shu-Qing Guo and Hong-Fei Zhang. α particle preformation and shell effect for heavy andsuperheavy nuclei[J]. Chinese Physics C, 2018, 42(7): 074103.  doi: 10.1088/1674-1137/42/7/074103 shu
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Received: 2018-02-01
Revised: 2018-04-09
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    Supported by National Natural Science Foundation of China (11675066, 11475050), Fundamental Research Funds for the Central Universities (lzujbky-2017-ot04) and Feitian Scholar Project of Gansu Province

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α particle preformation and shell effect for heavy andsuperheavy nuclei

  • 1.  School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 2. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 3. Joint Department for Nuclear Physics, Lanzhou University and Institute of Modern Physics, CAS, Lanzhou 730000, China
Fund Project:  Supported by National Natural Science Foundation of China (11675066, 11475050), Fundamental Research Funds for the Central Universities (lzujbky-2017-ot04) and Feitian Scholar Project of Gansu Province

Abstract: The α particle preformation factor is extracted within a generalized liquid drop model for Z=84-92 isotopes and N=126, 128, 152, 162, 176, 184 isotones. The calculated results show clearly that the shell effects play a key role in α particle preformation. The closer the proton and neutron numbers are to the magic numbers, the more difficult the formation of the α cluster inside the mother nucleus is. The preformation factors of the isotopes reflect that N=126 is a magic number for Po, Rn, Ra, and Th isotopes, but for U isotopes the weakening of the influence of the N=126 shell closure is evident. The trend of the factors for N=126 and N=128 isotones also support this conclusion. We extend the calculations for N=152, 162, 176, 184 isotones to explore the magic numbers for heavy and superheavy nuclei, which are probably present near Z=108 to N=152, 162 isotones and Z=116 to N=176, 184 isotones. The results also show that another subshell closure may exist after Z=124 in the superheavy nuclei. This is useful for future experiments.

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