Kaons and antikaons in hot and dense hadronic matter
- Abstract: The medium modification of kaon and antikaon masses, compatible with low energy KN scattering data, are studied in a chiral SU(3) model. The mutual interactions with baryons in hot hadronic matter and the e ects from the baryonic Dirac sea on the K( ¯K ) masses are examined. The in-medium masses from the chiral SU(3) e ective model are compared to those from chiral perturbation theory. Furthermore, the influence of these in-medium e ects on kaon rapidity distributions and transverse energy spectra as well as the K, ¯K flow pattern in heavy-ion collision experiments at 1.5 to 2 A·GeV are investigated within the HSD transport approach. Detailed predictions on the transverse momentum and rapidity dependence of directed flow v1 and the elliptic flow v2 are provided for Ni+Ni at 1.93 A·GeV within the various models, that can be used to determine the in-medium K± properties from the experimental side in the near future.
| Verfasserangaben: | Amruta Mishra, Elena L. BratkovskayaORCiDGND, Jürgen Schaffner-BielichORCiDGND, Stefan SchrammGND, Horst StöckerORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-20711 |
| Dokumentart: | Preprint |
| Sprache: | Englisch |
| Datum der Veröffentlichung (online): | 09.11.2005 |
| Jahr der Erstveröffentlichung: | 2004 |
| Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Datum der Freischaltung: | 09.11.2005 |
| Freies Schlagwort / Tag: | antikaon; hadronic; kaon; masse antikaon; hadronic matter; kaon; masse |
| Quelle: | Phys.Rev.C70:044904,2004. [nucl-th/0402062] |
| HeBIS-PPN: | 190330880 |
| Institute: | Physik / Physik |
| Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) | |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Lizenz (Deutsch): |  Deutsches Urheberrecht |
