dorsal/arxiv
View SchemaD-mesons: In-medium effects at FAIR
| Authors | L. Tolos, J. Schaffner-Bielich, H. Stoecker |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0509054 |
| URL | https://arxiv.org/abs/nucl-th/0509054 |
| DOI | 10.1016/j.physletb.2006.02.045 |
| Journal | Phys.Lett.B635:85-92,2006 |
Abstract
The $D$-meson spectral density at finite temperature is obtained within a self-consistent coupled-channel approach. For the bare meson-baryon interaction, a separable potential is taken, whose parameters are fixed by the position and width of the $\Lambda_c (2593)$ resonance. The quasiparticle peak stays close to the free $D$-meson mass, indicating a small change in the effective mass for finite density and temperature. Furthermore, the spectral density develops a considerable width due to the coupled-channel structure. Our results indicate that the medium modifications for the $D$-mesons in nucleus-nucleus collisions at FAIR (GSI) will be dominantly on the width and not, as previously expected, on the mass.
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"abstract": "The $D$-meson spectral density at finite temperature is obtained within a\nself-consistent coupled-channel approach. For the bare meson-baryon\ninteraction, a separable potential is taken, whose parameters are fixed by the\nposition and width of the $\\Lambda_c (2593)$ resonance. The quasiparticle peak\nstays close to the free $D$-meson mass, indicating a small change in the\neffective mass for finite density and temperature. Furthermore, the spectral\ndensity develops a considerable width due to the coupled-channel structure. Our\nresults indicate that the medium modifications for the $D$-mesons in\nnucleus-nucleus collisions at FAIR (GSI) will be dominantly on the width and\nnot, as previously expected, on the mass.",
"arxiv_id": "nucl-th/0509054",
"authors": [
"L. Tolos",
"J. Schaffner-Bielich",
"H. Stoecker"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/j.physletb.2006.02.045",
"journal_ref": "Phys.Lett.B635:85-92,2006",
"title": "D-mesons: In-medium effects at FAIR",
"url": "https://arxiv.org/abs/nucl-th/0509054"
},
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