Investigation of Hypernucleus <SUB>Λ</SUB><SUP>5</SUP>He Structure and the Calculation of the Binding Energy

Liu Xianhui; Chen Zitao

Chinese Physics C> 1999, Vol. 23> Issue(4) : 380-387

Investigation of Hypernucleus _Λ⁵He Structure and the Calculation of the Binding Energy

Liu Xianhui ^, ,
Chen Zitao

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 1000392 Institute of Theoretical Physics, The Chinese Academy of sciences, Beijing 100080

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In this paper the nuclear structure of hypernucleus ₅^ΛHe and its effect on the binding energy B_Λ of A hyperon are systematically studied. The Polarization effect of the core a is explored. The binding energy B_Λ of ₅^ΛHe 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 B_Λ calculated value about 0.5MeV. A Possible three cluster structure is further explored. The Λ+d+d model can give a B_Λ value close to the experimental one. The further exploration is necessary.

References

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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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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 1998-07-20

Accepted Date: 1900-01-01

Available Online: 1999-04-05

Abstract: In this paper the nuclear structure of hypernucleus ₅^ΛHe and its effect on the binding energy B_Λ of A hyperon are systematically studied. The Polarization effect of the core a is explored. The binding energy B_Λ of ₅^ΛHe 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 B_Λ calculated value about 0.5MeV. A Possible three cluster structure is further explored. The Λ+d+d model can give a B_Λ value close to the experimental one. The further exploration is necessary.

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Investigation of Hypernucleus _Λ⁵He Structure and the Calculation of the Binding Energy

Investigation of Hypernucleus _Λ⁵He Structure and the Calculation of the Binding Energy