ITP OpenIR  > SCI期刊论文
Yang, S; Shen, PN; Zhang, ZY; Yu, YW; Yang, S , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China.
Spin-orbit force of hyperon-nucleon interaction in the chiral SU(3) quark model
Source PublicationNUCLEAR PHYSICS A
KeywordChannel
AbstractThe spin-orbit (LS) force of the hyperon-nucleon interaction is studied in the chiral SU(3) quark model. The symmetric LS terms from the one gluon exchange (OGE) and the scalar nonet exchange (OSE) are taken into account. It is shown that two different treatments (the LS coupling from either OGE or OSE being artificially enhanced in order to reproduce the P-3(J) phase shifts of the nucleon-nucleon scattering) lead to very similar LS couplings in the Sigma N(I = 3/2) channel but give quite different results in the Lambda N - Sigma N(I = 1/2) coupled-channel system. A prominent resonance occurs in the P-1(1) state of the Lambda N channel mainly due to the stronger LS(-) couplings in the Lambda N - Sigma N(I = 1/2) coupled-channel system in the OGE enhanced case. Comparatively the Lambda N P-1(1) phase shift curve exhibits a rather smooth behaviour in the OSE enhanced case. Comparing our theoretical results with the experimental data available, and considering the requirement of the baryon spectrum, one can deduce that a stronger color-independent LS coupling is preferred in the chiral quark model. (C) 1998 Elsevier Science B.V.
1998
ISSN0375-9474
Volume635Issue:40910Pages:146-162
Subject AreaPhysics
Indexed BySCI
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Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12305
CollectionSCI期刊论文
Corresponding AuthorYang, S , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China.
Recommended Citation
GB/T 7714
Yang, S,Shen, PN,Zhang, ZY,et al. Spin-orbit force of hyperon-nucleon interaction in the chiral SU(3) quark model[J]. NUCLEAR PHYSICS A,1998,635(40910):146-162.
APA Yang, S,Shen, PN,Zhang, ZY,Yu, YW,&Yang, S , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China..(1998).Spin-orbit force of hyperon-nucleon interaction in the chiral SU(3) quark model.NUCLEAR PHYSICS A,635(40910),146-162.
MLA Yang, S,et al."Spin-orbit force of hyperon-nucleon interaction in the chiral SU(3) quark model".NUCLEAR PHYSICS A 635.40910(1998):146-162.
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