Journalartikel

Jahr der Veröffentlichung: 2001

Seiten: 753-783

Zeitschrift: Nuclear Physics A: Nuclear and Hadronic Physics

Bandnummer: 689

Heftnummer: 3-4

ISSN: 0375-9474

Open Access Status: Green

DOI Link: https://doi.org/10.1016/S0375-9474(00)00613-8

Verlag: Elsevier

Abstract: 
We calculate the spectral function A(rho) of the rho meson in nuclear matter, The calculation is performed in the low-density approximation, where the in-medium self-energy Sigma (med) is completely determined by the vacuum rho N forward scattering amplitude. This amplitude is derived from a relativistic resonance model, In comparison to previous nonrelativistic calculations we find a much weaker momentum dependence of Sigma (med), especially in the transverse channel. Special attention is paid to uncertainties in the model. Thus, we compare the impact of different coupling schemes for the RN rho interaction on the results and discuss various resonance parameter sets. (C) 2001 Elsevier Science B.V, All rights reserved.

Harvard-Zitierstil: Post, M., Leupold, S. and Mosel, U. (2001) The ρ spectral function in a relativistic resonance model, Nuclear Physics A: Nuclear and Hadronic Physics, 689(3-4), pp. 753-783. https://doi.org/10.1016/S0375-9474(00)00613-8

APA-Zitierstil: Post, M., Leupold, S., & Mosel, U. (2001). The ρ spectral function in a relativistic resonance model. Nuclear Physics A: Nuclear and Hadronic Physics. 689(3-4), 753-783. https://doi.org/10.1016/S0375-9474(00)00613-8