dorsal/arxiv
View SchemaStudy of $\Lambda(1405)$ in photoproduction of $K^*$
| Authors | T. Hyodo, A. Hosaka, M. J. Vicente Vacas, E. Oset |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0404031 |
| URL | https://arxiv.org/abs/nucl-th/0404031 |
Abstract
We investigate the photoproduction of $K^*$ vector meson for the study of the $\Lambda(1405)$ resonance. The invariant mass distribution of $\pi\Sigma$ shows a different shape from the nominal one, peaking at 1420 MeV. This is considered as a consequence of the double pole structure of $\Lambda(1405)$, predicted in the chiral unitary model. Combined with other reactions, such as $\pi^- p \to K^0 \pi\Sigma$, experimental confirmation of this fact will reveal a novel structure of the $\Lambda(1405)$ state.
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"date_created": "2026-03-02T18:00:01.419000Z",
"date_modified": "2026-03-02T18:00:01.419000Z",
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"abstract": "We investigate the photoproduction of $K^*$ vector meson for the study of the\n$\\Lambda(1405)$ resonance. The invariant mass distribution of $\\pi\\Sigma$ shows\na different shape from the nominal one, peaking at 1420 MeV. This is considered\nas a consequence of the double pole structure of $\\Lambda(1405)$, predicted in\nthe chiral unitary model. Combined with other reactions, such as $\\pi^- p \\to\nK^0 \\pi\\Sigma$, experimental confirmation of this fact will reveal a novel\nstructure of the $\\Lambda(1405)$ state.",
"arxiv_id": "nucl-th/0404031",
"authors": [
"T. Hyodo",
"A. Hosaka",
"M. J. Vicente Vacas",
"E. Oset"
],
"categories": [
"nucl-th",
"hep-ph"
],
"title": "Study of $\\Lambda(1405)$ in photoproduction of $K^*$",
"url": "https://arxiv.org/abs/nucl-th/0404031"
},
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"variant": "snapshot-2026-03-01",
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