Cross Section Measurements of Neutron-Rich Hg Isotopes in Reaction of 28MeV/u 18O with Thick Natural Lead Target

  • By using 28MeV/u 18O beam,an on-line melting lead target equipment and 4π-ΔEβ-γcoincident technique,the relative cross section ratios and absolute cross sections of neutron-rich nuclides 205—208Hg have been measured. The production cross section of 209Hg is extrapolated.The cross section of 207Hg produced by-2p +1n from target decreases suddenly,which may be explained by change of reaction Q value.
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  • [1] Ph.Dessagne et al,Nucl.Phys.A426(1984)399.[2] K.Moody et al,GSI Scientific Report,(1984)93.[3] A.Turler et al,GSI Scientific Report,(1984)95.[4] 杨维凡等,高能物理与核物理,17(1993)873.[5] 杨维凡等,核物理动态,10,(1993)25.[6] Zhang Li et al,Phys.Rev.,C49(1994)27.[7] Zhao Jinhua et al,Chin.J.of Nucl.Phys,14(1992)267.[8] 王积成等,高能物理与核物理,19(1995)653.[9] Table of Lsotopes,7th ed,edited by C.Michael Lederer and Virginia S.Shirley(Wiley,NewYork,1978).[10] Ch.Wennemann et al,Z.Phys.,A347(1994)185.[11] Meissner et al.GSI Scientific Report,(1992)19.
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Wang Jicheng, Zhang Li, Guo Guanghui, Zhao Jinhua and Zheng Jiwen. Cross Section Measurements of Neutron-Rich Hg Isotopes in Reaction of 28MeV/u 18O with Thick Natural Lead Target[J]. Chinese Physics C, 1995, 19(8): 686-691.
Wang Jicheng, Zhang Li, Guo Guanghui, Zhao Jinhua and Zheng Jiwen. Cross Section Measurements of Neutron-Rich Hg Isotopes in Reaction of 28MeV/u 18O with Thick Natural Lead Target[J]. Chinese Physics C, 1995, 19(8): 686-691. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Cross Section Measurements of Neutron-Rich Hg Isotopes in Reaction of 28MeV/u 18O with Thick Natural Lead Target

    Corresponding author: Wang Jicheng,
  • The institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000

Abstract: By using 28MeV/u 18O beam,an on-line melting lead target equipment and 4π-ΔEβ-γcoincident technique,the relative cross section ratios and absolute cross sections of neutron-rich nuclides 205—208Hg have been measured. The production cross section of 209Hg is extrapolated.The cross section of 207Hg produced by-2p +1n from target decreases suddenly,which may be explained by change of reaction Q value.

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