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- W1884169968 abstract "We calculate p, ${ensuremath{pi}}^{ifmmodepmelsetextpmfi{}},$ ${K}^{ifmmodepmelsetextpmfi{}},$ and $ensuremath{Lambda}(+{ensuremath{Sigma}}^{0})$ rapidity distributions and compare to experimental data from SIS to SPS energies within the Ultrarelativistic-Quantum-Molecular Dynamics and Hadron-String Dynamics transport approaches that are both based on string, quark, diquark $(q,$ $overline{q},$ $qq,$ $overline{q}overline{q}),$ and hadronic degrees of freedom. The two transport models do not include any explicit phase transition to a quark-gluon plasma. It is found that both approaches agree rather well with each other and with the experimental rapidity distributions for protons, ensuremath{Lambda}'s, ${ensuremath{pi}}^{ifmmodepmelsetextpmfi{}},$ and ${K}^{ifmmodepmelsetextpmfi{}}.$ In spite of this apparent agreement both transport models fail to reproduce the maximum in the excitation function for the ratio ${K}^{+}/{ensuremath{pi}}^{+}$ found experimentally between 11 and 40 A GeV. A comparison to the various experimental data shows that this ``failure'' is dominantly due to an insufficient description of pion rapidity distributions rather than missing ``strangeness.'' The modest differences in the transport model results---on the other hand---can be attributed to different implementations of string formation and fragmentation that are not sufficiently controlled by experimental data for the ``elementary'' reactions in vacuum." @default.
- W1884169968 created "2016-06-24" @default.
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- W1884169968 date "2003-01-23" @default.
- W1884169968 modified "2023-09-30" @default.
- W1884169968 title "Hadronic observables at relativistic energies: Anything strange with strangeness?" @default.
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- W1884169968 doi "https://doi.org/10.1103/physrevc.67.014904" @default.
- W1884169968 hasPublicationYear "2003" @default.
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