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29 March 2024
 
  » arxiv » nucl-th/9702028

 Article overview


Treatment of baryonic resonances in the RQMD approach including scalar-vector mean fields
C. Fuchs ; L. Sehn ; Amand Faessler ; D.S. Kosov ; V.S. Uma Maheswari ; Z. Wang ;
Date 12 Feb 1997
Subject nucl-th
AbstractIn the relativistic Quantum Molecular Dynamics (RQMD) approach baryons are described within the framework of covariant hamilton constraint dynamics. The inclusion of a relativistic mean field results in a quasiparticle picture for the baryons. This requires to distinguish between canonical and kinetic variables of the particles. As resonances we include the $Delta$(1232) and the $N^*$(1440) resonance. The resonance masses are distributed according Breit-Wigner functions. However, the scalar self energy leads to a shift in the masses and introduces an additional medium dependence. Consequences of this description on resonance and pion dynamics are discussed.
Source arXiv, nucl-th/9702028
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