dorsal/arxiv
View SchemaPhotoproduction of the Lambda(1405) on the proton and nuclei
| Authors | J. C. Nacher, E. Oset, H. Toki, A. Ramos |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9812055 |
| URL | https://arxiv.org/abs/nucl-th/9812055 |
| DOI | 10.1016/S0370-2693(99)00380-9 |
| Journal | Phys.Lett. B455 (1999) 55-61 |
Abstract
We study the gamma p ---> K^+ Lambda(1405) reaction at energies close to threshold using a chiral unitary model where the resonance is generated dynamically from K^-p interaction with other channels constructed from the octets of baryons and mesons. Predictions are made for cross sections into several channels and it is shown that the detection of the K^+ is sufficient to determine the shape and strength of the Lambda(1405) resonance. The determination of the resonance properties in nuclei requires instead the detection of the resonance decay channels. Pauli blocking effects on the resonance, which have been shown to be very important for the resonance at rest in the nucleus, are irrelevant here where the resonance is produced with a large momentum. The nuclear modifications here would thus offer information on the resonance and K^- nucleus dynamics complementary to the one offered so far by K^- atoms.
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"abstract": "We study the gamma p ---\u003e K^+ Lambda(1405) reaction at energies close to\nthreshold using a chiral unitary model where the resonance is generated\ndynamically from K^-p interaction with other channels constructed from the\noctets of baryons and mesons. Predictions are made for cross sections into\nseveral channels and it is shown that the detection of the K^+ is sufficient to\ndetermine the shape and strength of the Lambda(1405) resonance. The\ndetermination of the resonance properties in nuclei requires instead the\ndetection of the resonance decay channels. Pauli blocking effects on the\nresonance, which have been shown to be very important for the resonance at rest\nin the nucleus, are irrelevant here where the resonance is produced with a\nlarge momentum. The nuclear modifications here would thus offer information on\nthe resonance and K^- nucleus dynamics complementary to the one offered so far\nby K^- atoms.",
"arxiv_id": "nucl-th/9812055",
"authors": [
"J. C. Nacher",
"E. Oset",
"H. Toki",
"A. Ramos"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0370-2693(99)00380-9",
"journal_ref": "Phys.Lett. B455 (1999) 55-61",
"title": "Photoproduction of the Lambda(1405) on the proton and nuclei",
"url": "https://arxiv.org/abs/nucl-th/9812055"
},
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