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D-mesons: In-medium effects at FAIR

  • 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 Λc(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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Metadaten
Author:Laura TolósORCiD, Jürgen Schaffner-BielichORCiDGND, Horst StöckerORCiDGND
URN:urn:nbn:de:hebis:30:3-762417
DOI:https://doi.org/10.1016/j.physletb.2006.02.045
ISSN:0370-2693
Parent Title (English):Physics Letters B
Publisher:Elsevier
Place of publication:Amsterdam
Document Type:Article
Language:English
Date of Publication (online):2006/02/28
Date of first Publication:2006/02/28
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2023/10/06
Tag:Coupled-channel self-consistent calculation; D-meson spectral density; Finite temperature; interaction; resonance
Volume:635
Issue:2-3
Page Number:8
First Page:85
Last Page:92
HeBIS-PPN:513362126
Institutes:Physik
Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS)
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:10.00.00 THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for experimental methods and instrumentation for elementary-particle physics, see section 29) / 14.00.00 Properties of specific particles / 14.20.-c Baryons (including antiparticles) / 14.20.Gk Baryon resonances with <i>S</i>=0
10.00.00 THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for experimental methods and instrumentation for elementary-particle physics, see section 29) / 14.00.00 Properties of specific particles / 14.40.-n Mesons / 14.40.Lb Charmed mesons
20.00.00 NUCLEAR PHYSICS / 21.00.00 Nuclear structure (for nucleon structure, see 14.20.Dh Properties of protons and neutrons; 13.40.-f for electromagnetic processes and properties; 13.60.Hb for deep-inelastic structure functions) / 21.65.-f Nuclear matter
Licence (German):License LogoCreative Commons - Namensnennung 3.0

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