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GU Jianzhong, PENG Bangbao, LI Zhenyu, YU Guoliang. Decay Out of Superdeformed Bands in 190,192Pb[J]. Nuclear Physics Review, 2017, 34(1): 57-61. doi: 10.11804/NuclPhysRev.34.01.057
Citation: GU Jianzhong, PENG Bangbao, LI Zhenyu, YU Guoliang. Decay Out of Superdeformed Bands in 190,192Pb[J]. Nuclear Physics Review, 2017, 34(1): 57-61. doi: 10.11804/NuclPhysRev.34.01.057
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Decay Out of Superdeformed Bands in 190,192Pb

doi: 10.11804/NuclPhysRev.34.01.057
  • 1.

    China Institute of Atomic Energy, Beijing 102413, China;

  • 2.

    Key Discipline Laboratory of Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, China;

  • 3.

    School of Physics and Electronic Science, Guizhou Normal College, Guiyang 550018, China;

  • 4.

    Department of Mathematics and Physics, North China Electric Power University, Baoding 071003, Hebei, China

Funds:  National Natural Science Foundation of China(11275271); Foundation for Innovative Research Groups of the National Natural Science Foundation of China(11321064)
  • Received Date: 2016-09-01
  • Publish Date: 2017-03-20
  • The combined method is applied to calculate the angular momentum projected potential energy surfaces (AMPPES) of 190,192Pb. The Supper-deformed(SD) rotational bands of the two nuclei are studied with the AMPPES computed with the Gogny D1S and Skyrme SkP and SLy4 interactions. It is found that there is no pronounced SD band in 190Pb in the case of the Gogny interaction, which is consistent with the experimental observation. A well developed SD band with the Gogny interaction is found in 192Pb. The tunneling width of 192Pb is comparable to that given by the GW approach (Nucl. Phys. A 660 (1999)197) and orders of magnitude larger than that given by the SB approach (Phys. Rev. C 60 (1999) 051305). The influence of the angular momentum projection on the potential energy surfaces is examined in the case of the Gogny interaction for 190,192Pb. It is shown that the angular momentum projection suppresses the barrier separating the SD and ND rotational bands. Higher barriers of the AMPPESs for the two nuclei computed with the Skyrme SkP and SLy4 interactions are obtained compared with those given by the Gogny force. The tunneling width of 192Pb is also big for the Skyrme interactions. We put the SB approach into question which gives only an extremely small spreading width.
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Decay Out of Superdeformed Bands in 190,192Pb

doi: 10.11804/NuclPhysRev.34.01.057
  • 1. China Institute of Atomic Energy, Beijing 102413, China;
  • 2. Key Discipline Laboratory of Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, China;
  • 3. School of Physics and Electronic Science, Guizhou Normal College, Guiyang 550018, China;
  • 4. Department of Mathematics and Physics, North China Electric Power University, Baoding 071003, Hebei, China
Funds:  National Natural Science Foundation of China(11275271); Foundation for Innovative Research Groups of the National Natural Science Foundation of China(11321064)
  • Received Date: 2016-09-01
  • Publish Date: 2017-03-20

Abstract: The combined method is applied to calculate the angular momentum projected potential energy surfaces (AMPPES) of 190,192Pb. The Supper-deformed(SD) rotational bands of the two nuclei are studied with the AMPPES computed with the Gogny D1S and Skyrme SkP and SLy4 interactions. It is found that there is no pronounced SD band in 190Pb in the case of the Gogny interaction, which is consistent with the experimental observation. A well developed SD band with the Gogny interaction is found in 192Pb. The tunneling width of 192Pb is comparable to that given by the GW approach (Nucl. Phys. A 660 (1999)197) and orders of magnitude larger than that given by the SB approach (Phys. Rev. C 60 (1999) 051305). The influence of the angular momentum projection on the potential energy surfaces is examined in the case of the Gogny interaction for 190,192Pb. It is shown that the angular momentum projection suppresses the barrier separating the SD and ND rotational bands. Higher barriers of the AMPPESs for the two nuclei computed with the Skyrme SkP and SLy4 interactions are obtained compared with those given by the Gogny force. The tunneling width of 192Pb is also big for the Skyrme interactions. We put the SB approach into question which gives only an extremely small spreading width.

GU Jianzhong, PENG Bangbao, LI Zhenyu, YU Guoliang. Decay Out of Superdeformed Bands in 190,192Pb[J]. Nuclear Physics Review, 2017, 34(1): 57-61. doi: 10.11804/NuclPhysRev.34.01.057
Citation: GU Jianzhong, PENG Bangbao, LI Zhenyu, YU Guoliang. Decay Out of Superdeformed Bands in 190,192Pb[J]. Nuclear Physics Review, 2017, 34(1): 57-61. doi: 10.11804/NuclPhysRev.34.01.057
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