dorsal/arxiv
View SchemaKaons and antikaons in hot and dense hadronic matter
| Authors | A. Mishra, E. L. Bratkovskaya, J. Schaffner-Bielich, S. Schramm, H. Stoecker |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0402062 |
| URL | https://arxiv.org/abs/nucl-th/0402062 |
| DOI | 10.1103/PhysRevC.70.044904 |
| Journal | Phys.Rev.C70:044904,2004 |
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 effects from the baryonic Dirac sea on the K(${\rm {\bar K}}$) masses are examined. The in-medium masses from the chiral SU(3) effective model are compared to those from chiral perturbation theory. Furthermore, the influence of these in-medium effects on kaon rapidity distributions and transverse energy spectra as well as the $K, \bar{K}$ flow pattern in heavy-ion collision experiments at 1.5 to 2 A$\cdot$GeV are investigated within the HSD transport approach. Detailed predictions on the transverse momentum and rapidity dependence of directed flow $v_1$ and the elliptic flow $v_2$ are provided for Ni+Ni at 1.93 A$\cdot$GeV within the various models, that can be used to determine the in-medium $K^\pm$ properties from the experimental side in the near future.
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"abstract": "The medium modification of kaon and antikaon masses, compatible with low\nenergy KN scattering data, are studied in a chiral SU(3) model. The mutual\ninteractions with baryons in hot hadronic matter and the effects from the\nbaryonic Dirac sea on the K(${\\rm {\\bar K}}$) masses are examined. The\nin-medium masses from the chiral SU(3) effective model are compared to those\nfrom chiral perturbation theory. Furthermore, the influence of these in-medium\neffects on kaon rapidity distributions and transverse energy spectra as well as\nthe $K, \\bar{K}$ flow pattern in heavy-ion collision experiments at 1.5 to 2\nA$\\cdot$GeV are investigated within the HSD transport approach. Detailed\npredictions on the transverse momentum and rapidity dependence of directed flow\n$v_1$ and the elliptic flow $v_2$ are provided for Ni+Ni at 1.93 A$\\cdot$GeV\nwithin the various models, that can be used to determine the in-medium $K^\\pm$\nproperties from the experimental side in the near future.",
"arxiv_id": "nucl-th/0402062",
"authors": [
"A. Mishra",
"E. L. Bratkovskaya",
"J. Schaffner-Bielich",
"S. Schramm",
"H. Stoecker"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.70.044904",
"journal_ref": "Phys.Rev.C70:044904,2004",
"title": "Kaons and antikaons in hot and dense hadronic matter",
"url": "https://arxiv.org/abs/nucl-th/0402062"
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