Preliminary study of the anti-K N interaction in a chiral constituent quark model

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dc.creatorHuang, F.
dc.creatorWang, W. L.
dc.creatorZhang, Z. Y.
dc.creatorYu, Y. W.
dc.date2007-08-09
dc.date.accessioned2026-07-07T08:22:53Z
dc.date.available2026-07-07T08:22:53Z
dc.descriptionA preliminary investigation of the anti-K N interaction is performed within a chiral constituent quark model by solving the resonating group method (RGM) equation. The model parameters are taken from our previous work, which gave a satisfactory description of the S-, P-, D-, F-wave KN scattering phase shifts. The channel-coupling between anti-K N, pi Lambda and pi Sigma is considered, and the scattering phase shifts as well as the bound-state problem of anti-K N are dynamically studied. The results show that the S-wave anti-K N interaction in the isospin I=0 channel is attractive, and in the extended chiral SU(3) quark model such an attraction can make for an anti-K N bound state, which appears as a pi Sigma resonance in the coupled-channel calculation, while the chiral SU(3) quark model cannot accommodate the existence of an anti-K N bound state. It seems that the vector meson exchanges are necessary to be introduced in the quark-quark interactions if one tries to explain the Lambda(1405) as an anti-K N bound state or a pi Sigma - anti-K N resonance state.
dc.description4 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0708.1231
dc.identifierhttp://arxiv.org/abs/0708.1231
dc.identifierPhys.Rev.C76:018201,2007
dc.identifierdoi:10.1103/PhysRevC.76.018201
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/135806
dc.subjectNuclear Theory
dc.titlePreliminary study of the anti-K N interaction in a chiral constituent quark model
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