Strange meson-baryon interaction in hot and dense medium: recent progress for a road to GSI/FAIR

15th International Conference on Strangeness in Quark Matter

Cabrera, D.^1,2 ; Tolos, L.^1,3 ; Aichelin, J.^4 ; Bratkovskaya, E.^1,2

Frankfurt Institute for Avanced Studies, J. W. Goethe-Universität, Frankfurt am Main, Germany^1

Institut für Theoretische Physik, J. W. Goethe-Universität, Frankfurt am Main, Germany^2

Institut de Ciències de l'Espai (IEEC/CSIC), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain^3

Subatech, UMR 6457, IN2P3/CNRS, Ècole de Mines de Nantes, Université de Nantes, France^4

关键词: Coupled channels;    Dense medium;    Heavy ion collision;    Hyperon resonance;    Near thresholds;    Nuclear matters;    Recent progress;    Transition rates;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012048/pdf
DOI  :  10.1088/1742-6596/668/1/012048

来源: IOP

【 摘 要 】

We report recent results on the dynamics of strange hadrons in two-body reactions relevant for near-threshold production in heavy-ion collisions at GSI/FAIR and NICA-Dubna. In particular, K-N scattering in hot and dense nuclear matter is studied within a chiral unitary framework in coupled channels, setting up the starting point for implementations in microscopic off-shell transport approaches. We focus on the calculation of transition rates with special attention to the excitation of hyperon resonances and isospin effects. Additionally, we explore "unconventional" strangeness generation by meson-meson and meson-baryon interactions in connection with recent HADES observations of deep sub-threshold Φ and Ξ production.