Strangeness Production in the HSD Transport Approach from SIS to SPS energies

Details Strangeness Production in the HSD Transport Approach from SIS to SPS energies Strangeness Production in the HSD Transport Approach from SIS to SPS energies

1998-05-06

arxiv.org/abs/nucl-th/9805012v2

Nucl.Phys. A644 (1998) 107-138

Physics

Nuclear Physics

Nuclear Theory

25 pages, 19 figures

Scientific paper

10.1016/S0375-9474(98)80011-0

We study systematically the production of strangeness in nuclear reactions from SIS to SPS energies within the covariant hadronic transport approach HSD. Whereas the proton and pion rapidity distributions as well as pion transverse momentum spectra are well described in the hadronic transport model from 2-200 AGeV, the $K^+$ and $K^-$ spectra are noticeably underestimated at AGS energies while the $K^+$ spectra match well at SIS and SPS energies with the experimental data. We conclude that the failure of the hadronic model at AGS energies points towards a nonhadronic phase during the collision of heavy systems around 10 AGeV.

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