THE N-N AND N-Δ SPIN ORBIT FORCES IN THE QUARK MODEL

YU You-Wen; ZHANG Zong-Ye; WU Hui-Fang; SHEN Jian-Ping

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1983, Vol. 7> Issue(4) : 455-461

THE N-N AND N-Δ SPIN ORBIT FORCES IN THE QUARK MODEL

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Abstract：
In this paper, we study the N-N and N-Δ spin orbit forces in the quark model. The results are: (1) the N-N spin orbit force is attractive for the triplet odd state, this feature is qualitatively agreement with the phenomenological potential which is determined by the N-N scattering data. (2) the direct term of the Δ-N spin orbit force is attractive mainly and the exchange term of that is attractive for the case of ST=12 and 21, repulsive for the case of ST=11 and 22. All of these results will be helpful to understand the property of the N-Δ spin-orbit force.

References

[1]	Oka, M and Yazaki, K., Phys. Lett., 90B(1980), 41; Harvey, M., Nucl. Phys., A352(1981), 301; 320.[2] Warke, C. S. and Shenber, R., Phys. Rev., C21(1980), 2643.[3] Tamagaki, R., Phys. Rev., D16(1977), 1542.

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YU You-Wen, ZHANG Zong-Ye, WU Hui-Fang and SHEN Jian-Ping. THE N-N AND N-Δ SPIN ORBIT FORCES IN THE QUARK MODEL[J]. Chinese Physics C, 1983, 7(4): 455-461.

YU You-Wen, ZHANG Zong-Ye, WU Hui-Fang and SHEN Jian-Ping. THE N-N AND N-Δ SPIN ORBIT FORCES IN THE QUARK MODEL[J]. Chinese Physics C, 1983, 7(4): 455-461. 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

THE N-N AND N-Δ SPIN ORBIT FORCES IN THE QUARK MODEL

Corresponding author: YU You-Wen,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1983-08-05

Abstract: In this paper, we study the N-N and N-Δ spin orbit forces in the quark model. The results are: (1) the N-N spin orbit force is attractive for the triplet odd state, this feature is qualitatively agreement with the phenomenological potential which is determined by the N-N scattering data. (2) the direct term of the Δ-N spin orbit force is attractive mainly and the exchange term of that is attractive for the case of ST=12 and 21, repulsive for the case of ST=11 and 22. All of these results will be helpful to understand the property of the N-Δ spin-orbit force.