Journalartikel

Jahr der Veröffentlichung: 2002

Zeitschrift: Physical Review C

Bandnummer: 66

Heftnummer: 3

ISSN: 0556-2813

eISSN: 1089-490X

Open Access Status: Green

DOI Link: https://doi.org/10.1103/PhysRevC.66.034902

Verlag: American Physical Society

Abstract: 
Due to large piN-->Delta cross section a pion acquires a large width in nuclear matter. Therefore, a Delta resonance decaying in the nuclear medium can produce far off-shell pions, which will gradually lose their virtuality while propagating to the vacuum. To describe such off-shell dynamics, we implemented a pion spectral function for finite nuclear matter density-calculated on the basis of the Delta-hole model-in the Boltzmann-Uehling-Uhlenbeck transport approach. The pion off-shell dynamics leads to an enhancement of the low-p(t) pion yields in the collisions of Au+Au at 1A GeV.

Harvard-Zitierstil: Larionov, A. and Mosel, U. (2002) Off-shell pions in Boltzmann-Uehling-Uhlenbeck transport theory, Physical Review C, 66(3), Article 034902. https://doi.org/10.1103/PhysRevC.66.034902

APA-Zitierstil: Larionov, A., & Mosel, U. (2002). Off-shell pions in Boltzmann-Uehling-Uhlenbeck transport theory. Physical Review C. 66(3), Article 034902. https://doi.org/10.1103/PhysRevC.66.034902