Dynamical Structure of A≤4 Λ Hypernuclei

KONG Fan-Xin; LUO Bin; LIU Xian-Hui

Chinese Physics C> 1991, Vol. 15> Issue(6) : 524-534

Dynamical Structure of A≤4 Λ Hypernuclei

Department of Physics,Guangxi Teacher's University Guilin 5410011 Institute of High Energy Physics,Academia Sinica,Beijing 100039

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Abstract：
Based on variational method,we systematically studied the dynamical structures of A≤4 S shell Λ hypernuclei with the aid of the harmonic oscillator product expansions and the generalized Talmi-Moshinsiky transformation.We also made investigations on structures of the osdinary nuclei for A=2 and 3. By comparis on,we can see that the root mean distances between nucleons are shorten due to the presence Λ hyperon which compresses the core. Λ hyperon acts as the adhesive. The studies on internal structures of nuclear system show that the relative motions between particles are mainly in 0s orbits.

References

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M. Juric, et al., Nucl. Phys. B52(1973)1; T. Calwell, et al., Nucl. Phys., A236(1974), 445; J. Pniewski and D. Zieminska, In Proceedings of the Conference on Kaon-Nuclear Interaction and Hypernuclei, zvenigored, 1977, p. 33; M. Bediidian, et al., Phys. Lett., 83B(1979), 252.[2] Chao-ying ZHANG, Fan-xin KONG and Xian-hui LIU, Nucl. Phys., A500(1989)627;张超英、孔蕃信、刘宪辉，高能物理与核物理，No.10(1989),907;Y.P, Gan, et al., Comp. Phys. Commun.,34(1985),387.[3] Reichstein, I. and Y.C. Tang, Nucl. Phys., A139 (1969), 144.[4] 胡济民、杨伯君、郑春开，原子核理论第一卷，原子能出版社, 1987, p. 30.[5] A.R. Bodmer and Q.N. Usmani, Phys. Rev., C3(1985), 1400;J. Carlson, et al., Nucl. Phys., A401(1983),59.[6] Wu Hui-fang, Shen Jian-ping, Yu You-wen, Zhang Zong-ye, Commun. in Theor. Phys.(Beijing, China) No. 4(1982), 449.[7] Yusuo Yamamoto, Phys. Rev., C36(1987),2166.

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KONG Fan-Xin, LUO Bin and LIU Xian-Hui. Dynamical Structure of A≤4 Λ Hypernuclei[J]. Chinese Physics C, 1991, 15(6): 524-534.

KONG Fan-Xin, LUO Bin and LIU Xian-Hui. Dynamical Structure of A≤4 Λ Hypernuclei[J]. Chinese Physics C, 1991, 15(6): 524-534. 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

Dynamical Structure of A≤4 Λ Hypernuclei

Corresponding author: KONG Fan-Xin,

Department of Physics,Guangxi Teacher's University Guilin 5410011 Institute of High Energy Physics,Academia Sinica,Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1991-06-05

Abstract: Based on variational method,we systematically studied the dynamical structures of A≤4 S shell Λ hypernuclei with the aid of the harmonic oscillator product expansions and the generalized Talmi-Moshinsiky transformation.We also made investigations on structures of the osdinary nuclei for A=2 and 3. By comparis on,we can see that the root mean distances between nucleons are shorten due to the presence Λ hyperon which compresses the core. Λ hyperon acts as the adhesive. The studies on internal structures of nuclear system show that the relative motions between particles are mainly in 0s orbits.