dorsal/arxiv
View SchemaElectroexcitation of the Roper resonance in the relativistic quark models
| Authors | I. G. Aznauryan |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0701012 |
| URL | https://arxiv.org/abs/nucl-th/0701012 |
| DOI | 10.1103/PhysRevC.76.025212 |
| Journal | Phys.Rev.C76:025212,2007 |
Abstract
The amplitudes of the transition gamma* N -> P11(1440) are calculated within light-front relativistic quark model assuming that the P11(1440) is the first radial excitation of the 3q ground state. The results are presented along with the predictions obtained in other relativistic quark models. In comparison with the previous calculations, we have extended the range of Q^2 up to 4.5 GeV^2 to cover the kinematic interval of the forthcoming experimental data. Using approach based on PCAC, we have checked the relative sign between quark model predictions for the N and P11(1440) contributions to the pion electroproduction found in previous investigations.
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"abstract": "The amplitudes of the transition gamma* N -\u003e P11(1440) are calculated within\nlight-front relativistic quark model assuming that the P11(1440) is the first\nradial excitation of the 3q ground state. The results are presented along with\nthe predictions obtained in other relativistic quark models. In comparison with\nthe previous calculations, we have extended the range of Q^2 up to 4.5 GeV^2 to\ncover the kinematic interval of the forthcoming experimental data. Using\napproach based on PCAC, we have checked the relative sign between quark model\npredictions for the N and P11(1440) contributions to the pion electroproduction\nfound in previous investigations.",
"arxiv_id": "nucl-th/0701012",
"authors": [
"I. G. Aznauryan"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.76.025212",
"journal_ref": "Phys.Rev.C76:025212,2007",
"title": "Electroexcitation of the Roper resonance in the relativistic quark models",
"url": "https://arxiv.org/abs/nucl-th/0701012"
},
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