Effect of Closed Shell Structure on Heavy-Ion Fusion Reactions

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概要

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• The effect of the nuclear shell structure on the heavy-ion fusion reaction was investigated for the reaction systems ^<82>Se + ^<138>Ba, ^<82>Se + ^<134>Ba, ^<16>O + ^<204>Pb, ^<86>Kr + ^<134>Ba, ^<86>Kr + ^<138>Ba and ^<82>Se + ^<nat.>Ce. Evaporation residues for these fusion reactions were measured using a recoil mass separator (JAERI-RMS) near Coulomb barrier region. The measured evaporation residue cross sections for the reactions ^<82>Se + ^<138>Ba and ^<86>Kr + ^<138>Ba were two orders of magnitude and one order of magnitude larger than those for the reactions ^<82>Se + ^<134>Ba and ^<86>Kr + ^<134>Ba, respectively, at the excitation energy region of 10 〜 30 MeV. The evaporation residue cross sections were compared with those of the other reaction systems that make the same or similar compound nuclei as the present reaction systems. It was found that the evaporation residue cross sections correlate strongly with the sum of the shell energies for both projectile and target nuclei, i.e. the evaporation residue cross sections increase as the sum of the shell energy decreases.

• 理論物理学刊行会の論文
• 2004-07-30

著者

• NISHIO Katsuhisa

  Japan Atomic Energy Research Institute

• Lin Cheng-jian

  Japan Atomic Energy Research Institute:china Institute Of Atomic Energy

• Jeong Sun-chang

  Institute Of Particle And Nuclear Studies Kek

• IKEZOE H.

  Japan Atomic Energy Agency

• Ikezoe H

  Japan Atomic Energy Research Institute

• Ikezoe Hiroshi

  Japan Atomic Energy Agency

• MITSUOKA Shin-ichi

  Japan Atomic Energy Research Institute (JAERI)

• SATOU Kenichiro

  Japan Atomic Energy Research Institute (JAERI)

• TSURUTA Kaoru

  Japan Atomic Energy Research Institute (JAERI)

• Tsuruta Kaoru

  Japan Atomic Energy Research Institute

• Satou Kenichiro

  Japan Atomic Energy Research Institute:institute Of Physics And Tandem Accelerator Center University

• Ikezoe Hiroshi

  Japan Atomic Energy Research Institute

• Mitsuoka Shin-ichi

  Japan Atomic Energy Research Institute

• JEONG Sun-Chang

  Institute of Particle and Nuclear Studies, KEK

• LIN Cheng-Jian

  Japan Atomic Energy Research Institute (JAERI)

• IKEZOE Hiroshi

  Japan Atomic Energy Research Institute (JAERI)

• Nishio Katsuhisa

  Japan Atomic Energy Agency (JAEA), 2-4 Shirane, Tokai, Ibaraki 319-1195, Japan

• Mitsuoka Shin-ichi

  Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

• SATOU Kenichiro

  Japan Atomic Energy Research Institute:Institute of Physics and Tandem Accelerator Center, University of Tsukuba

関連論文

• 27aWG-13 Measurement of the ^8Li(α,n)^B reaction in FY 2003 experiment
• Simultaneous Measurement of Prompt Neutrons and Fission Fragments for ^Pu(n_, f)
• Measurement of Evaporation Residue and Fission Cross Sections of the Reaction ^Si + ^U at Subbarrier Energies
• Orientation effects of deformed ^U target nuclei on the fusion probability for heavy element synthesis(International Workshop on Nuclear Structure-New Pictures in the Extended Isospin Space(NS07)-)
• The Present and the Future of JAERI Recoil Mass Separator
• Dependence of Heavy-ion Fusion Reaction on Nuclear Deformation and Nuclear Shell Structure
• Dependence of Heavy-Ion Fusion Reaction on Nuclear Deformation
• Effect of Closed Shell Structure on Heavy-Ion Fusion Reactions
• Effects of Nuclear Deformation on the Fusion Probability in the Reactions of ^Ge+^Nd and ^Se+^Ce
• Simulation Study on the Measurements of Diffusion Coefficients in Solid Materials by Short-lived Radiotracer Beams
• New Result in the Production and Decay of an Isotope, 278113, of the 113th Element
• Simulation Study on the Measurements of Diffusion Coefficients in Solid Materials by Short-lived Radiotracer Beams
• On-Line Diffusion Tracing in Li Ionic Conductors by the Short-Lived Radioactive Beam of 8Li

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