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26 April 2024 |
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$D$-mesons and charmonium states in hot pion matter | | C. Fuchs
; B.V. Martemyanov
; Amand Faessler
; M.I. Krivoruchenko
; | | Date: |
14 Oct 2004 | | Subject: | nucl-th | | 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 $s-$, $p-$ and $d-$ 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 $60
m {MeV}$ and the scattering width grows up to $60
m {MeV}$. 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 $D ar D, D^* ar D, D ar D^*, D^* ar D^*$ pairs in pion matter. | | Source: | arXiv, nucl-th/0410065 | | Services: | Forum | Review | PDF | Favorites | |
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