The "Glue-Effect" of Excess Neutrons and Appearance of Various Configurations of Alpha-Clusters(Current Topics)

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Other Title
  • 中性子の果たす"糊"の効果とαクラスターの結合形態(最近の研究から)
  • 中性子の果たす"糊"の効果とαクラスターの結合形態
  • チュウセイシ ノ ハタス ノリ ノ コウカ ト アルファ クラスター ノ ケツゴウ ケイタイ

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Abstract

The structure change of nuclear systems as a function of excitation energy is discussed. In the nuclear systems, protons and neutrons are considered to perform independent particle motion in low-lying states close to the ground state, however α cluster structure appears around the α-threshold energy to decay into subsystems. Until now, such cluster states have been investigated in light stable nuclei with equal numbers of protons and neutrons, and gas-like nature of α cluster structure has been well studied. In the present study, we discuss in neutron-rich nuclei how the gas-like cluster structure changes when excess neutrons are added. We show the appearance of cluster states with geometric shapes due to the "glue effect" of the excess neutrons.

Journal

  • Butsuri

    Butsuri 64 (11), 840-844, 2009-11-05

    The Physical Society of Japan

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