dorsal/arxiv
View SchemaOne-loop calculations of hyperon polarizabilities under the large N_c consistency condition
| Authors | Y. Tanushi, S. Saito, M. Uehara |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9911071 |
| URL | https://arxiv.org/abs/nucl-th/9911071 |
| DOI | 10.1103/PhysRevC.61.055204 |
| Journal | Phys.Rev. C61 (2000) 055204 |
Abstract
The spin-averaged electromagnetic polarizabilities of the hyperons $\Lambda$ and $\Sigma$ are calculated within the one-loop approximation by use of the dispersion theory. The photon and meson couplings to hyperons are determined so as to satisfy the large N_c consistency condition. It is shown that in order for the large N_c consistency condition to hold exotic hyperon states such as $\Sigma^{**}$ with I=2 and J=3/2 are required in the calculation of the magnetic polarizability of the $\Sigma$ state.
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"abstract": "The spin-averaged electromagnetic polarizabilities of the hyperons $\\Lambda$\nand $\\Sigma$ are calculated within the one-loop approximation by use of the\ndispersion theory. The photon and meson couplings to hyperons are determined so\nas to satisfy the large N_c consistency condition. It is shown that in order\nfor the large N_c consistency condition to hold exotic hyperon states such as\n$\\Sigma^{**}$ with I=2 and J=3/2 are required in the calculation of the\nmagnetic polarizability of the $\\Sigma$ state.",
"arxiv_id": "nucl-th/9911071",
"authors": [
"Y. Tanushi",
"S. Saito",
"M. Uehara"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.61.055204",
"journal_ref": "Phys.Rev. C61 (2000) 055204",
"title": "One-loop calculations of hyperon polarizabilities under the large N_c consistency condition",
"url": "https://arxiv.org/abs/nucl-th/9911071"
},
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