dorsal/arxiv
View SchemaQuark-Model Baryon-Baryon Interaction and its Applications to Hypernuclei
| Authors | Y. Fujiwara, C. Nakamoto, Y. Suzuki, M. Kohno, K. Miyagawa |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0404070 |
| URL | https://arxiv.org/abs/nucl-th/0404070 |
| DOI | 10.1143/PTPS.156.17 |
| Journal | Prog.Theor.Phys.Suppl. 156 (2004) 17-36 |
Abstract
The quark-model baryon-baryon interaction fss2, proposed by the Kyoto-Niigata group, is a unified model for the complete baryon octet (B_8=N, Lambda, Sigma and Xi), which is formulated in a framework of the (3q)-(3q) resonating-group method (RGM) using the spin-flavor SU_6 quark-model wave functions and effective meson-exchange potentials at the quark level. Model parameters are determined to reproduce properties of the nucleon-nucleon system and the low-energy cross section data for the hyperon-nucleon scattering. Due to the several improvements including the introduction of vector-meson exchange potentials, fss2 has achieved very accurate description of the NN and YN interactions, comparable to various one-boson exchange potentials. We review the essential features of fss2 and our previous model FSS, and their predictions to few-body systems in confrontation with the available experimental data. Some characteristic features of the B_8 B_8 interactions with the higher strangeness, S=-2, -3, -4, predicted by fss2 are discussed. These quark-model interactions are now applied to realistic calculations of few-body systems in a new three-cluster Faddeev formalism which uses two-cluster RGM kernels. As for the few-body systems, we discuss the three-nucleon bound states, the Lambda NN-Sigma NN system for the hypertriton, the alpha alpha Lambda system for 9Be Lambda, and the Lambda Lambda alpha system for 6He Lambda Lambda.
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"abstract": "The quark-model baryon-baryon interaction fss2, proposed by the Kyoto-Niigata\ngroup, is a unified model for the complete baryon octet (B_8=N, Lambda, Sigma\nand Xi), which is formulated in a framework of the (3q)-(3q) resonating-group\nmethod (RGM) using the spin-flavor SU_6 quark-model wave functions and\neffective meson-exchange potentials at the quark level. Model parameters are\ndetermined to reproduce properties of the nucleon-nucleon system and the\nlow-energy cross section data for the hyperon-nucleon scattering. Due to the\nseveral improvements including the introduction of vector-meson exchange\npotentials, fss2 has achieved very accurate description of the NN and YN\ninteractions, comparable to various one-boson exchange potentials. We review\nthe essential features of fss2 and our previous model FSS, and their\npredictions to few-body systems in confrontation with the available\nexperimental data. Some characteristic features of the B_8 B_8 interactions\nwith the higher strangeness, S=-2, -3, -4, predicted by fss2 are discussed.\nThese quark-model interactions are now applied to realistic calculations of\nfew-body systems in a new three-cluster Faddeev formalism which uses\ntwo-cluster RGM kernels. As for the few-body systems, we discuss the\nthree-nucleon bound states, the Lambda NN-Sigma NN system for the hypertriton,\nthe alpha alpha Lambda system for 9Be Lambda, and the Lambda Lambda alpha\nsystem for 6He Lambda Lambda.",
"arxiv_id": "nucl-th/0404070",
"authors": [
"Y. Fujiwara",
"C. Nakamoto",
"Y. Suzuki",
"M. Kohno",
"K. Miyagawa"
],
"categories": [
"nucl-th"
],
"doi": "10.1143/PTPS.156.17",
"journal_ref": "Prog.Theor.Phys.Suppl. 156 (2004) 17-36",
"title": "Quark-Model Baryon-Baryon Interaction and its Applications to Hypernuclei",
"url": "https://arxiv.org/abs/nucl-th/0404070"
},
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