Study About the Binding Energy of Light Hypernuclei 5ΛHe,4ΛHe and 4ΛH Based on Chiral SU(3) Quark Model

LU Xiao; Bai Ying; YANG Yong-Xu; SHEN Peng-Nian

Chinese Physics C> 2005, Vol. 29> Issue(7) : 668-672

Study About the Binding Energy of Light Hypernuclei 5ΛHe,4ΛHe and 4ΛH Based on Chiral SU(3) Quark Model

Depertment of Physics,Guangxi Normal University,Guilin 541004 China2 Institute of High Energy Physics,The Chinese Academy of Sciences,Beijing 100049,China

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Abstract：
In the framework of the resonating group method, the non-local YN interaction and Λ-core interaction in the chiral SU(3) quark model are obtained, and the binding energies BΛof light hypernuclei 5ΛHe ,4ΛHe and 4ΛH are calculated. It is shown that the chiral SU(3) quark model can well-describe not only the ΛN scattering but also the binding energies of light hypernuclei. The resultant binding energies BΛ of light hypernuclei by using the non-local YN interaction in terms of the resonating group method are more accurate than those by using the non-local YN interaction in terms of the resonating groupmethod are more accurate than those by using the generator coordinate method. As aresult,a set of model parameters is more accurately determined for the future hypernucleus and multi-quark system studies.

References

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. Schimert T et al. Nucl. Phys. , 1980, A343: 4292. Gibson B F. Nucl.Phys. , 1988, A479: 11503. ZHANG Chao-Ying, KONG Fan-Xin, LIU Xian-Hui. Nucl. Phys. ,1989, A500: 6274. Oka M, Yazaki K. Prog. Theor. Phys. , 1981, 66: 556; 572;Faessler Aet al . Nucl. Phys. , 1983, A402: 5555. Straub U et al. Nucl . Phys. , 1988, A438: 686; Phys. Lett . , 1988,B200: 2416. ZHANG Zong-Ye, YU You-Wen, SHEN Peng-Nian et al. Nucl.Phys. , 1997, A625: 597. ZHANG Miao-Jing, SHEN Peng-Nian et al . High Energy Phys. and Nucl. Phys. , 2001, 25( 8) : 7438. Alexander G, Karshon U, Shapira A et al . Phys Rev. , 1968, 173:1452; Sechi-Zorn B, Kehoe B, Twitty J et al. Phys. Rev. , 1968,175: 1735; Kadyk J A, Alexander G, Chan J H et al. Nucl. Phys. ,1971, B27: 139. Straub U et al. Nucl. Phys . , 1993, A556: 531

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LU Xiao, Bai Ying, YANG Yong-Xu and SHEN Peng-Nian. Study About the Binding Energy of Light Hypernuclei 5ΛHe,4ΛHe and 4ΛH Based on Chiral SU(3) Quark Model[J]. Chinese Physics C, 2005, 29(7): 668-672.

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Received: 2005-02-21
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

Study About the Binding Energy of Light Hypernuclei 5ΛHe,4ΛHe and 4ΛH Based on Chiral SU(3) Quark Model

Corresponding author: SHEN Peng-Nian,

Depertment of Physics,Guangxi Normal University,Guilin 541004 China2 Institute of High Energy Physics,The Chinese Academy of Sciences,Beijing 100049,China

Received Date: 2005-02-21
Accepted Date: 1900-01-01
Available Online: 2005-07-05

Abstract: In the framework of the resonating group method, the non-local YN interaction and Λ-core interaction in the chiral SU(3) quark model are obtained, and the binding energies BΛof light hypernuclei 5ΛHe ,4ΛHe and 4ΛH are calculated. It is shown that the chiral SU(3) quark model can well-describe not only the ΛN scattering but also the binding energies of light hypernuclei. The resultant binding energies BΛ of light hypernuclei by using the non-local YN interaction in terms of the resonating group method are more accurate than those by using the non-local YN interaction in terms of the resonating groupmethod are more accurate than those by using the generator coordinate method. As aresult,a set of model parameters is more accurately determined for the future hypernucleus and multi-quark system studies.