S = −1 meson-baryon interaction in hot and dense nuclear matter: chiral symmetry, many-body and unitarization for a road to GSI/FAIR
| Autor: | Elena Bratkovskaya, Jörg Aichelin, Daniel Cabrera, Laura Tolos |
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| Přispěvatelé: | Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Particle physics Meson 010308 nuclear & particles physics QC1-999 High Energy Physics::Phenomenology Nuclear Theory Hyperon Strangeness production Nuclear matter 01 natural sciences Nuclear physics Baryon Pseudoscalar Isospin 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] Vector meson 010306 general physics Nuclear Experiment ComputingMilieux_MISCELLANEOUS |
| Zdroj: | EPJ Web of Conferences, Vol 97, p 00008 (2015) EPJ Web of Conferences Resonance Workshop at Catania (RSN@CT) Resonance Workshop at Catania (RSN@CT), Nov 2014, Catania, Italy. pp.00008, ⟨10.1051/epjconf/20159700008⟩ |
| Popis: | The dynamics of strange pseudoscalar and vector mesons in hot and dense nuclear matter is studied within a chiral unitary framework in coupled channels. Our results set up the starting point for implementations in microscopic transport approaches of heavy-ion collisions, particularly at the conditions of the forthcoming experiments at GSI/FAIR and NICA-Dubna. In the K N sector we focus on the calculation of (off-shell) transition rates for the most relevant binary reactions involved in strangeness production close to threshold energies, with special attention to the excitation of sub-threshold hyperon resonances and isospin effects (e.g. K p vs K n ). We also give an overview of recent theoretical developments regarding the dynamics of strange vector mesons ( K *, K * and ϕ ) in the nuclear medium, in connection with experimental activity from heavy-ion collisions and nuclear production reactions. We emphasize the role of hadronic decay modes and the excitation of hyperon resonances as the driving mechanisms modifying the properties of vector mesons. |
| Databáze: | OpenAIRE |
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