Event-by-event fluctuations of particle ratios in central Pb + Pb collisions at 20 to 158 AGeV
- In the vicinity of the QCD phase transition, critical fluctuations have been predicted to lead to non-statistical fluctuations of particle ratios, depending on the nature of the phase transition. Recent results of the NA49 energy scan program show a sharp maximum of the ratio of K+ to Pi+ yields in central Pb+Pb collisions at beam energies of 20-30 AGeV. This observation has been interpreted as an indication of a phase transition at low SPS energies. We present first results on event-by-event fluctuations of the kaon to pion and proton to pion ratios at beam energies close to this maximum.
| Author: | Christof RolandORCiDGND, NA49 Collaboration |
|---|---|
| URN: | urn:nbn:de:hebis:30-16230 |
| DOI: | https://doi.org/10.48550/arXiv.nucl-ex/0403035 |
| ArXiv Id: | http://arxiv.org/abs/nucl-ex/0403035 |
| Document Type: | Preprint |
| Language: | English |
| Date of Publication (online): | 2005/09/26 |
| Year of first Publication: | 2004 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2005/09/26 |
| Source: | J.Phys. G30 (2004) , http://arxiv.org/abs/nucl-ex/0403035 |
| HeBIS-PPN: | 190342900 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Licence (German): |  Deutsches Urheberrecht |
