dorsal/arxiv
View SchemaDynamics of Resonances in Strongly Interacting Systems
| Authors | J. Knoll, F. Riek, Yu. B. Ivanov, D. N. Voskresensky |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0512040 |
| URL | https://arxiv.org/abs/nucl-th/0512040 |
| DOI | 10.1088/1742-6596/35/1/033 |
| Journal | J.Phys.Conf.Ser.35:357-372,2006 |
Abstract
The effects of the propagation of particles which have a finite life-time and an according broad distribution in their mass spectrum are discussed in the context of a transport descriptions. In the first part some example cases of mesonic modes in nuclear matter at finite densities and temperatures are presented. These equilibrium calculations illustrate the dynamical range of spectral distributions to be adequately covered by non-equilibrium description of the dynamics of two nuclei colliding at high energies. The second part addresses the problem of transport descriptions which properly account for the damping width of the particles. A systematic and general gradient approximation is presented in the form of diagrammatic rules which permit to derive a self-consistent transport scheme from the Kadanoff--Baym equation. The scheme is conserving and thermodynamically consistent provided the self-energies are obtained within the Phi-derivable two-particle irreducible (2PI) method of Baym. The merits, the limitations and partial cures of the limitations of this transport scheme are discussed in detail.
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"abstract": "The effects of the propagation of particles which have a finite life-time and\nan according broad distribution in their mass spectrum are discussed in the\ncontext of a transport descriptions. In the first part some example cases of\nmesonic modes in nuclear matter at finite densities and temperatures are\npresented. These equilibrium calculations illustrate the dynamical range of\nspectral distributions to be adequately covered by non-equilibrium description\nof the dynamics of two nuclei colliding at high energies. The second part\naddresses the problem of transport descriptions which properly account for the\ndamping width of the particles. A systematic and general gradient approximation\nis presented in the form of diagrammatic rules which permit to derive a\nself-consistent transport scheme from the Kadanoff--Baym equation. The scheme\nis conserving and thermodynamically consistent provided the self-energies are\nobtained within the Phi-derivable two-particle irreducible (2PI) method of\nBaym. The merits, the limitations and partial cures of the limitations of this\ntransport scheme are discussed in detail.",
"arxiv_id": "nucl-th/0512040",
"authors": [
"J. Knoll",
"F. Riek",
"Yu. B. Ivanov",
"D. N. Voskresensky"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1088/1742-6596/35/1/033",
"journal_ref": "J.Phys.Conf.Ser.35:357-372,2006",
"title": "Dynamics of Resonances in Strongly Interacting Systems",
"url": "https://arxiv.org/abs/nucl-th/0512040"
},
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