dorsal/arxiv
View SchemaQuark-mass dependence of baryon resonances
| Authors | M. F. M. Lutz, C. García-Recio, E. E. Kolomeitsev, J. Nieves |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0401035 |
| URL | https://arxiv.org/abs/nucl-th/0401035 |
| DOI | 10.1016/j.nuclphysa.2005.01.037 |
| Journal | Nucl.Phys.A754:212-220,2005 |
Abstract
We study the quark-mass dependence of J^P = \frac12^- s-wave and J^P = \frac32^- d-wave baryon resonances. Parameter-free results are obtained in terms of the leading order chiral Lagrangian. In the 'heavy' SU(3) limit with m_\pi =m_K \simeq 500 MeV the s-wave resonances turn into bound states forming two octets plus a singlet representations of the SU(3) group. Similarly the d-wave resonances turn into bound states forming an octet and a decuplet in this limit. A contrasted result is obtained in the 'light' SU(3) limit with m_\pi =m_K \simeq 140 MeV for which no resonances exist.
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"abstract": "We study the quark-mass dependence of J^P = \\frac12^- s-wave and J^P =\n\\frac32^- d-wave baryon resonances. Parameter-free results are obtained in\nterms of the leading order chiral Lagrangian. In the \u0027heavy\u0027 SU(3) limit with\nm_\\pi =m_K \\simeq 500 MeV the s-wave resonances turn into bound states forming\ntwo octets plus a singlet representations of the SU(3) group. Similarly the\nd-wave resonances turn into bound states forming an octet and a decuplet in\nthis limit. A contrasted result is obtained in the \u0027light\u0027 SU(3) limit with\nm_\\pi =m_K \\simeq 140 MeV for which no resonances exist.",
"arxiv_id": "nucl-th/0401035",
"authors": [
"M. F. M. Lutz",
"C. Garc\u00eda-Recio",
"E. E. Kolomeitsev",
"J. Nieves"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/j.nuclphysa.2005.01.037",
"journal_ref": "Nucl.Phys.A754:212-220,2005",
"title": "Quark-mass dependence of baryon resonances",
"url": "https://arxiv.org/abs/nucl-th/0401035"
},
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