D mesons in matter and the in-medium properties of charmonium

Bengt Friman; Su Houng Lee; Taesoo Song

doi:10.1016/S0370-2693(02)02855-1

D mesons in matter and the in-medium properties of charmonium

Bengt Friman, Su Houng Lee, Taesoo Song

Department of Physics

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61 Citations (Scopus)

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	https://doi.org/10.1016/S0370-2693(02)02855-1
Publication status	Published - 2002 Nov 21

Bibliographical note

Funding Information:
We thank D.-O. Riska for useful comments. S.H.L. gratefully acknowledges hospitality of GSI, where this work was initiated and completed. The work was supported in part by the KOSEF Grant 1999-2-111-005-5, and the Korean Ministry of Education Grant 2000-2-0689.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/S0370-2693(02)02855-1

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title = "D mesons in matter and the in-medium properties of charmonium",

abstract = "We study the changes in the partial decay widths of excited charmonium states into D{\=D}, 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.",

author = "Bengt Friman and Lee, {Su Houng} and Taesoo Song",

note = "Funding Information: We thank D.-O. Riska for useful comments. S.H.L. gratefully acknowledges hospitality of GSI, where this work was initiated and completed. The work was supported in part by the KOSEF Grant 1999-2-111-005-5, and the Korean Ministry of Education Grant 2000-2-0689.",

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AU - Friman, Bengt

AU - Lee, Su Houng

AU - Song, Taesoo

N1 - Funding Information: We thank D.-O. Riska for useful comments. S.H.L. gratefully acknowledges hospitality of GSI, where this work was initiated and completed. The work was supported in part by the KOSEF Grant 1999-2-111-005-5, and the Korean Ministry of Education Grant 2000-2-0689.

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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DO - 10.1016/S0370-2693(02)02855-1

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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 -

D mesons in matter and the in-medium properties of charmonium

Abstract

Bibliographical note

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