Investigation of Hypernucleus Λ5He Structure and the Calculation of the Binding Energy

  • In this paper the nuclear structure of hypernucleus 5ΛHe and its effect on the binding energy BΛ of A hyperon are systematically studied. The Polarization effect of the core a is explored. The binding energy BΛ of 5ΛHe including D-state mixing component is calculated. The results show that the core α suffers a serious distortion by the interaction with Λ hyperon and has no longer the structure of a free Alpha Particle. The D-state mixing can improve the BΛ calculated value about 0.5MeV. A Possible three cluster structure is further explored. The Λ+d+d model can give a BΛ value close to the experimental one. The further exploration is necessary.
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Liu Xianhui and Chen Zitao. Investigation of Hypernucleus Λ5He Structure and the Calculation of the Binding Energy[J]. Chinese Physics C, 1999, 23(4): 380-387.
Liu Xianhui and Chen Zitao. Investigation of Hypernucleus Λ5He Structure and the Calculation of the Binding Energy[J]. Chinese Physics C, 1999, 23(4): 380-387. shu
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Received: 1998-07-20
Revised: 1900-01-01
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Investigation of Hypernucleus Λ5He Structure and the Calculation of the Binding Energy

    Corresponding author: Liu Xianhui,
  • Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 1000392 Institute of Theoretical Physics, The Chinese Academy of sciences, Beijing 100080

Abstract: In this paper the nuclear structure of hypernucleus 5ΛHe and its effect on the binding energy BΛ of A hyperon are systematically studied. The Polarization effect of the core a is explored. The binding energy BΛ of 5ΛHe including D-state mixing component is calculated. The results show that the core α suffers a serious distortion by the interaction with Λ hyperon and has no longer the structure of a free Alpha Particle. The D-state mixing can improve the BΛ calculated value about 0.5MeV. A Possible three cluster structure is further explored. The Λ+d+d model can give a BΛ value close to the experimental one. The further exploration is necessary.

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