QCD Susceptibilities, Nuclear Saturation and Two-Pion Processes
| Autor: | Magda Ericson, G. Chanfray |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Quantum chromodynamics
Physics Nuclear and High Energy Physics Particle physics High Energy Physics::Lattice High Energy Physics::Phenomenology Nuclear Theory Scalar (mathematics) Hadron General Physics and Astronomy Sigma General Relativity and Quantum Cosmology Coupling (physics) Pion Quantum electrodynamics Nuclear Experiment Nucleon Scalar meson |
| Zdroj: | Acta Physica Hungarica A) Heavy Ion Physics. 27:151-158 |
| ISSN: | 1588-2675 1219-7580 |
| DOI: | 10.1556/aph.27.2006.1.19 |
| Popis: | We discuss the in-medium behaviour of the QCD scalar susceptibility and of the sigma mass in a chiral relativistic theory which incorporates the scalar response of the nucleon. We also study the many-body effects in the propagation of the scalar meson in the nuclear medium arising from its coupling to two-pion states. The same modification applies to the QCD scalar susceptibility. We conclude with the nuclear physics implications for the in-medium scalar nucleon-nucleon attraction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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