Particle Production from SIS to SPS Energies
| dc.creator | Cassing, W. | |
| dc.date | 1997-02-27 | |
| dc.date.accessioned | 2026-07-07T05:41:56Z | |
| dc.date.available | 2026-07-07T05:41:56Z | |
| dc.description | The production and propagation of mesons ($π, η, ρ, ω, Φ, K, \bar{K}, J/Ψ$) in proton-nucleus and nucleus-nucleus collisions from 1 - 200 GeV/u is studied within the covariant transport approach HSD, which explicitly allows to investigate selfenergy effects of the hadrons at finite baryon density. Whereas the experimental pion and $K^+$ spectra can be described without introducing any selfenergies for the mesons, the $K^-$ yield in Ni + Ni collisions is underestimated by a factor of 5 - 7 at 1.66 and 1.85 GeV/u. However, introducing density dependent antikaon masses in line with effective chiral Lagrangians a satisfactory agreement with the data is achieved. A dropping of the $ρ$-meson mass with baryon density, as suggested by QCD sumrule studies, is proposed to explain the dilepton spectra for S + Au and Pb + Au at SPS energies, which indicates independently that a partial restoration of chiral symmetry might be found already in the present experiments. | |
| dc.description | 14 pages, LaTeX, 9 postscript figures included, Proc. of the Int. Research Workshop "Heavy-Ion Physics at Low, Intermediate and Relativistic Energies using $4π$ Detectors", Poiana Brasov, Romania, Oct. 7-14, 1996, World Scientific, Singapore, 1997, in press | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9702053 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9702053 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/82754 | |
| dc.subject | Nuclear Theory | |
| dc.title | Particle Production from SIS to SPS Energies | |
| dc.type | text |