dorsal/arxiv
View SchemaChiral dynamics in "gamma p --> pi^0 eta p" and related reactions
| Authors | M. Doring, E. Oset, D. Strottman |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0510057 |
| URL | https://arxiv.org/abs/nucl-th/0510057 |
| Journal | ActaPhys.Slov.56:221-226,2006 |
Abstract
Using a chiral unitary approach for meson-baryon scattering in the strangeness zero sector, where the $N^*(1535)$ and $\Delta^*(1700)$ resonances are dynamically generated, we study the reactions $\gamma p \to \pi^0 \eta p$ and $\gamma p \to \pi^0 K^0 \Sigma^+$ at photon energies at which the final states are produced close to threshold. Among several reaction mechanisms, we find the most important is the excitation of the $\Delta^*(1700)$ state which subsequently decays into a pseudoscalar meson and the $N^*(1535)$. Hence, the reaction provides useful information with which to test current theories of the dynamical generation of the low-lying $1/2^-$ and $3/2^-$ states. Predictions are made for cross sections and invariant mass distributions which can be compared with forthcoming experiments at ELSA.
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"abstract": "Using a chiral unitary approach for meson-baryon scattering in the\nstrangeness zero sector, where the $N^*(1535)$ and $\\Delta^*(1700)$ resonances\nare dynamically generated, we study the reactions $\\gamma p \\to \\pi^0 \\eta p$\nand $\\gamma p \\to \\pi^0 K^0 \\Sigma^+$ at photon energies at which the final\nstates are produced close to threshold. Among several reaction mechanisms, we\nfind the most important is the excitation of the $\\Delta^*(1700)$ state which\nsubsequently decays into a pseudoscalar meson and the $N^*(1535)$. Hence, the\nreaction provides useful information with which to test current theories of the\ndynamical generation of the low-lying $1/2^-$ and $3/2^-$ states. Predictions\nare made for cross sections and invariant mass distributions which can be\ncompared with forthcoming experiments at ELSA.",
"arxiv_id": "nucl-th/0510057",
"authors": [
"M. Doring",
"E. Oset",
"D. Strottman"
],
"categories": [
"nucl-th"
],
"journal_ref": "ActaPhys.Slov.56:221-226,2006",
"title": "Chiral dynamics in \"gamma p --\u003e pi^0 eta p\" and related reactions",
"url": "https://arxiv.org/abs/nucl-th/0510057"
},
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