dorsal/arxiv
View SchemaSpectral change of sigma and omega mesons in a dense nuclear medium
| Authors | K. Saito, K. Tsushima, A. W. Thomas |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9811031 |
| URL | https://arxiv.org/abs/nucl-th/9811031 |
| DOI | 10.1016/S0370-2693(99)00775-3 |
Abstract
The spectra of the scalar ($\sigma$) and vector ($\omega$) mesons in nuclear matter are studied in detail using the quark-meson coupling (QMC) model. It is shown that above normal nuclear matter density the effects of $\sigma$-$\omega$ mixing and the decay of the $\sigma$ into $2\pi$ change the spectra of $\sigma$ and $\omega$ mesons considerably. As in Quantum Hadrodynamics we find a remarkable spectral change in the $\sigma$ meson and the longitudinal mode of the $\omega$ meson, namely a two-peak structure.
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"abstract": "The spectra of the scalar ($\\sigma$) and vector ($\\omega$) mesons in nuclear\nmatter are studied in detail using the quark-meson coupling (QMC) model. It is\nshown that above normal nuclear matter density the effects of $\\sigma$-$\\omega$\nmixing and the decay of the $\\sigma$ into $2\\pi$ change the spectra of $\\sigma$\nand $\\omega$ mesons considerably. As in Quantum Hadrodynamics we find a\nremarkable spectral change in the $\\sigma$ meson and the longitudinal mode of\nthe $\\omega$ meson, namely a two-peak structure.",
"arxiv_id": "nucl-th/9811031",
"authors": [
"K. Saito",
"K. Tsushima",
"A. W. Thomas"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/S0370-2693(99)00775-3",
"title": "Spectral change of sigma and omega mesons in a dense nuclear medium",
"url": "https://arxiv.org/abs/nucl-th/9811031"
},
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