({A}nti-)strangeness production in heavy-ion collisions
| Pub type: | Inproceedings |
| Citation: | 1742-6596-668-1-012072 |
| Status: | Published |
| Journal: | Journal of Physics: Conference Series |
| Booktitle: | 15th International Conference on Strangeness in Quark Matter (SQM2015) |
| Volume: | 668 |
| Year: | 2016 |
| Month: | January |
| Pages: | 012072 |
| Location: | Dubna, Russia |
| Note: | 6–11 July 2015 |
| URL: | http://stacks.iop.org/1742-659... |
| DOI: | 10.1088/1742-6596/668/1/012072 |
| Abstract: | The production and dynamics of strange and antistrange hadrons in heavy-ion reactions from √s NN ≈ 3 GeV to 200 GeV is analyzed within the Parton-Hadron-String- Dynamics (PHSD) transport model. The PHSD results for strange baryon and antibaryon production are roughly consistent with the experimental data starting from upper SPS energies. Nevertheless, hadronic final state flavor-exchange reactions are important for the actual abundances, in particular at large rapidities where hadronic dynamics, parton fragmentation and string decay dominate. A striking disagreement between the PHSD results and the available data persists, however, for bombarding energies below √s NN ≈ 8 GeV where the strangeness production is significantly underestimated as in earlier HSD studies. This finding implies that the strangeness enhancement seen experimentally at FAIR/NICA energies cannot be attributed to a deconfinement phase transition or crossover but probably involves the approximate restoration of chiral symmetry in the hadronic phase.References |
| Month_val: | 1 |
| Userfields: | issue = {1} |
| Authors: | |
| Added by: | [VT] |
| Total mark: | 0 |
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