Abstract
We study the changes in the partial decay widths of excited charmonium states into DD̄, when the D-meson mass decreases in nuclear matter, taking the internal structure of the hadrons into account. Calculations within the 3P0 model for Ψ(3686) and Ψ(3770) imply that naive estimates of the in-medium widths based only on phase space are grossly exaggerated. Due to nodes in the wave functions, these states may even become narrow at high densities, if the D-meson mass is decreased by about 200 MeV. For the x states, we generally expect stronger modifications of the widths. The relevance of the x widths for J/Ψ suppression in heavy ion collision is discussed. These phenomena could be explored in experiments at the future accelerator facility at GSI.
| Original language | English |
|---|---|
| Pages (from-to) | 153-160 |
| Number of pages | 8 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 548 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 2002 Nov 21 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
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D mesons in matter and the in-medium properties of charmonium. / Friman, Bengt; Lee, Su Houng; Song, Taesoo.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 548, No. 3-4, 21.11.2002, p. 153-160.Research output: Contribution to journal › Article
TY - JOUR
T1 - D mesons in matter and the in-medium properties of charmonium
AU - Friman, Bengt
AU - Lee, Su Houng
AU - Song, Taesoo
PY - 2002/11/21
Y1 - 2002/11/21
N2 - We study the changes in the partial decay widths of excited charmonium states into DD̄, when the D-meson mass decreases in nuclear matter, taking the internal structure of the hadrons into account. Calculations within the 3P0 model for Ψ(3686) and Ψ(3770) imply that naive estimates of the in-medium widths based only on phase space are grossly exaggerated. Due to nodes in the wave functions, these states may even become narrow at high densities, if the D-meson mass is decreased by about 200 MeV. For the x states, we generally expect stronger modifications of the widths. The relevance of the x widths for J/Ψ suppression in heavy ion collision is discussed. These phenomena could be explored in experiments at the future accelerator facility at GSI.
AB - We study the changes in the partial decay widths of excited charmonium states into DD̄, when the D-meson mass decreases in nuclear matter, taking the internal structure of the hadrons into account. Calculations within the 3P0 model for Ψ(3686) and Ψ(3770) imply that naive estimates of the in-medium widths based only on phase space are grossly exaggerated. Due to nodes in the wave functions, these states may even become narrow at high densities, if the D-meson mass is decreased by about 200 MeV. For the x states, we generally expect stronger modifications of the widths. The relevance of the x widths for J/Ψ suppression in heavy ion collision is discussed. These phenomena could be explored in experiments at the future accelerator facility at GSI.
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U2 - 10.1016/S0370-2693(02)02855-1
DO - 10.1016/S0370-2693(02)02855-1
M3 - Article
VL - 548
SP - 153
EP - 160
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3-4
ER -