Effects of N/Z on Survival Probability of Heavy Nuclei

  • The excitation function of evaporation residues formation probability of three heavy nuclei 194Pb, 200Pb and 206Pb is calculated using Langevin equation coupled with a statistical decay model. The results show that the ratio of neutron-to-proton (N/Z) of compound nuclei has an effect on survival probability and that a higher N/Z leads to a larger survival probability. This is due to the dependence of the fission barrier and pre-saddle particle emission on the N/Z of the systems.
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  • [1] . Mahata M et al. Phys. Rev., 2006, C74: 0413012. Shidling P D et al. Phys. Rev., 2006, C74: 0646033. Tishchenko T et al. Phys. Rev. Lett., 2005, 95: 1627014. Jurado B et al. Phys. Rev. Lett., 2004, 93: 0725015. Hilscher D, Rossner H. Ann. Phys. Fr., 1992, 17: 4716. Paul P, Thoennessen M. Annu. Rev. Nucl. Part. Sci., 1994,44: 557. Dióosezegi I et al. Phys. Rev., 2000, C61: 0246138. Frbrich P, Gontchar I I. Nucl. Phys., 1993, A563: 3269. Frbrich P, Gontchar I I. Phys. Rep., 1998, 292: 13110. Back B B et al. Phys. Rev., 1999, C60: 04460211. Ignatyuk A V et al. Sov. J. Nucl. Phys., 1975, 21: 61212. Myers W D, Swiatecki W J. Nucl. Phys., 1961, 81: 1; Ark.Fys., 1967, 36: 34313. Blann M. Phys. Rev., 1980, C21: 177014. YE W et al. Z. Phys., 1997, A359: 385
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Yang Hong-wei and Effects of N/Z on Survival Probability of Heavy Nuclei[J]. Chinese Physics C, 2008, 32(1): 49-51. doi: 10.1088/1674-1137/32/1/011
Yang Hong-wei and Effects of N/Z on Survival Probability of Heavy Nuclei[J]. Chinese Physics C, 2008, 32(1): 49-51.  doi: 10.1088/1674-1137/32/1/011 shu
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Received: 2007-01-17
Revised: 2007-03-16
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Effects of N/Z on Survival Probability of Heavy Nuclei

    Corresponding author: Yang Hong-wei,

Abstract: The excitation function of evaporation residues formation probability of three heavy nuclei 194Pb, 200Pb and 206Pb is calculated using Langevin equation coupled with a statistical decay model. The results show that the ratio of neutron-to-proton (N/Z) of compound nuclei has an effect on survival probability and that a higher N/Z leads to a larger survival probability. This is due to the dependence of the fission barrier and pre-saddle particle emission on the N/Z of the systems.

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