Comment on 'Nonperturbative finite T broadening of the {rho} meson and dilepton emission in heavy-ion collisions'

Journal Article · Tue May 15 00:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.059801· OSTI ID:20995354

Riek, Felix; Knoll, Joern ^[1]; Hees, Hendrik van ^[2]

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1. Gesellschaft fuer Schwerionenforschung mbH, Planckstr. 1, D-64291 Darmstadt (Germany)
2. Cyclotron Institute, Texas A and M University, College Station, Texas 77843-3366 (United States)

In this Comment we point out several problems concerning kinematical singularities which are encountered in the calculation of the dilepton rates by Ruppert and Renk [Phys. Rev. C 71, 064903 (2005)]. We also comment on the method introduced by van Hees and Knoll [Nucl. Phys. A683, 369 (2000)] and further used by Ruppert and Renk [Phys. Rev. C 71, 064903 (2005)], Renk and Ruppert (arXiv:hep-ph/0603110, arXiv:hep-ph/0605130), and Riek and Knoll [Nucl. Phys. A740, 287 (2004)].

• OSTI ID: 20995354
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 75, Issue 5; Other Information: DOI: 10.1103/PhysRevC.75.059801; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON EMISSION
HEAVY ION REACTIONS
LEPTONS
RHO-770 MESONS
SINGULARITY