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 _Λof A hyperon are systematically studied. The Polarization effect of the core a is explored. The binding energy B _Λof 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 _Λcalculated value about 0.5MeV. A Possible three cluster structure is further explored. The Λ+d+d model can give a B _Λvalue close to the experimental one. The further exploration is necessary.

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Liu Xianhui and Chen Zitao. Investigation of Hypernucleus _Λ ⁵He 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 _Λ ⁵He 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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通讯作者:陈斌, bchen63@163.com

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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 hypernucleus₅^ΛHe and its effect on the binding energy B_Λof A hyperon are systematically studied. The Polarization effect of the core a is explored. The binding energy B_Λof₅^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_Λcalculated value about 0.5MeV. A Possible three cluster structure is further explored. The Λ+d+d model can give a B_Λvalue 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

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