Journalartikel

Jahr der Veröffentlichung: 2006

Seiten: 187-205

Zeitschrift: Nuclear Physics A: Nuclear and Hadronic Physics

Bandnummer: 780

Heftnummer: 3-4

ISSN: 0375-9474

eISSN: 1873-1554

Open Access Status: Green

DOI Link: https://doi.org/10.1016/j.nuclphysa.2006.10.037

Verlag: Elsevier

Abstract: 
We calculate the spectral function of the omega meson in nuclear matter at zero temperature by means of the low-density theorem. The omega N forward scattering amplitude is calculated within a unitary coupled-channel effective Lagrangian model that has been applied successfully to the combined analysis of pion- and photon-induced reactions. While the peak of the omega spectral distribution is shifted only slightly, we find a considerable broadening of the w meson due to resonance-hole excitations. For omega mesons at rest with respect to the surrounding nuclear medium, we find an additional width of about 60 MeV at saturation density. (c) 2006 Elsevier B.V. All rights reserved.

Harvard-Zitierstil: Mühlich, P., Shklyar, V., Leupold, S., Mosel, U. and Post, M. (2006) The spectral function of the ω meson in nuclear matter from a coupled-channel resonance model, Nuclear Physics A: Nuclear and Hadronic Physics, 780(3-4), pp. 187-205. https://doi.org/10.1016/j.nuclphysa.2006.10.037

APA-Zitierstil: Mühlich, P., Shklyar, V., Leupold, S., Mosel, U., & Post, M. (2006). The spectral function of the ω meson in nuclear matter from a coupled-channel resonance model. Nuclear Physics A: Nuclear and Hadronic Physics. 780(3-4), 187-205. https://doi.org/10.1016/j.nuclphysa.2006.10.037