A PROBABLE EXPLANATION OF THE <SUP>5</SUP>He OVERBINDING PROBLEM

LIU Ji-Feng; SHEN Jian-Ping; LI Guang-Lie

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2024年10月30日

Chinese Physics C> 1989, Vol. 13> Issue(9) : 814-821

A PROBABLE EXPLANATION OF THE ⁵He OVERBINDING PROBLEM

Guangxi Normal University,GuilinInstitute of High Energy Physics,Academia Sinica,Beijing

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Abstract：
In this paper,based upon analysing the various factors which might cause the overbinding of ⁵He,we make a proper adjustment for the wave function of the core nucleus ⁴He.With the adjusted core wave function and various Λ-N interactions,we calculate the Λ-hyperon binding energy B_Λ(⁵He) of the ⁵He ground state and obtain a reasonable agreement between the theoretical and experimental values of B_Λ(⁵He).Thus, the ⁵He overbinding problem could be explained.

References

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B. F . Gibson, Nucl. phys., A479(1988). 115C.[2] R. H. Dalitz, R. C. Herndon and Y. C. Tang, Nucl. phys, B47(1972), 109.[3] Thomas Schimert. D. J. Stubeda, M. Lemere and Y. C. Tang, Nucl . phys., A343(1980),429.[4] 刘渊，刘宪辉，原子核物理，5(1983)186.[5] C. Daskaloyannis, Phys. Rev., C26(1982), 702.[6] R. H. Bassel and C. Wilkin, Phys. Rev., 174(1968): 1179.[7] T. T. Chou, Phys. Rev., 168(1968), 1594.[8] J. P. Auger et al., Nucl. phys., 262(1976), 372.[9] R. C. Barrett and D. F. Jackson, NucIear Sizes and Structure(1977) p. 146.[10] T. H. Ho et al., Phgr. Lett., B30(1969), 303; B31(1970), 259.[11] W. Bassichis et al.Phys. Rev,C1(1970), 28.[12] S. P. Verma et al.phys. Rev.C20(1979), 781; C22(1980),229.[13] Liu Dong-sheng, Shen Jian-ping, Li Gaung-lie and Yu You-wen原子核研究(Japan). V31(1986). 65:Commu. in Theor. Phys., V6(1986), 175.[14] A. Tekou, Nuovo. Cimento, 54A(1979). 15.[15] 施义晋等，高能物理与核物理，5(1983)，605.

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LIU Ji-Feng, SHEN Jian-Ping and LI Guang-Lie. A PROBABLE EXPLANATION OF THE ⁵He OVERBINDING PROBLEM[J]. Chinese Physics C, 1989, 13(9): 814-821.

LIU Ji-Feng, SHEN Jian-Ping and LI Guang-Lie. A PROBABLE EXPLANATION OF THE ⁵He OVERBINDING PROBLEM[J]. Chinese Physics C, 1989, 13(9): 814-821. shu

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Received: 1900-01-01
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

A PROBABLE EXPLANATION OF THE ⁵He OVERBINDING PROBLEM

Corresponding author: LIU Ji-Feng,

Guangxi Normal University,GuilinInstitute of High Energy Physics,Academia Sinica,Beijing

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1989-09-05

Abstract: In this paper,based upon analysing the various factors which might cause the overbinding of ⁵He,we make a proper adjustment for the wave function of the core nucleus ⁴He.With the adjusted core wave function and various Λ-N interactions,we calculate the Λ-hyperon binding energy B_Λ(⁵He) of the ⁵He ground state and obtain a reasonable agreement between the theoretical and experimental values of B_Λ(⁵He).Thus, the ⁵He overbinding problem could be explained.