dorsal/arxiv
View Schema$D$-mesons and charmonium states in hot pion matter
| Authors | C. Fuchs, B. V. Martemyanov, Amand Faessler, M. I. Krivoruchenko |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0410065 |
| URL | https://arxiv.org/abs/nucl-th/0410065 |
| DOI | 10.1103/PhysRevC.73.035204 |
| Journal | Phys.Rev. C73 (2006) 035204 |
Abstract
We calculate the in-medium $D$ meson self-energies in a hot pion gas induced by resonance interactions with pions. The appropriate resonances in the {\it s},~ {\it p} and {\it d} waves of the $D$ meson-pion pair are represented by low lying scalar, vector and tensor $D^*$ mesons. At temperatures around 200 MeV the D-meson mass drops by $30~ \rm {MeV}$ and the scattering width grows up to $60~ \rm {MeV}$. Similar medium effects are found for the $D^*$ vector mesons. This opens and/or enhances the decay and/or dissociation channels of the charmonium states $\Psi^\prime$, $\chi_c$ and $J/\Psi$ to $D \bar D,~D^* \bar D,~D \bar D^* ,~D^* \bar D^*$ pairs in pion matter.
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"abstract": "We calculate the in-medium $D$ meson self-energies in a hot pion gas induced\nby resonance interactions with pions. The appropriate resonances in the {\\it\ns},~ {\\it p} and {\\it d} waves of the $D$ meson-pion pair are represented by\nlow lying scalar, vector and tensor $D^*$ mesons. At temperatures around 200\nMeV the D-meson mass drops by $30~ \\rm {MeV}$ and the scattering width grows up\nto $60~ \\rm {MeV}$. Similar medium effects are found for the $D^*$ vector\nmesons. This opens and/or enhances the decay and/or dissociation channels of\nthe charmonium states $\\Psi^\\prime$, $\\chi_c$ and $J/\\Psi$ to $D \\bar D,~D^*\n\\bar D,~D \\bar D^* ,~D^* \\bar D^*$ pairs in pion matter.",
"arxiv_id": "nucl-th/0410065",
"authors": [
"C. Fuchs",
"B. V. Martemyanov",
"Amand Faessler",
"M. I. Krivoruchenko"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.73.035204",
"journal_ref": "Phys.Rev. C73 (2006) 035204",
"title": "$D$-mesons and charmonium states in hot pion matter",
"url": "https://arxiv.org/abs/nucl-th/0410065"
},
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