Enhanced antiproton production in Pb(160 AGeV)+Pb reactions: evidence for quark gluon matter?
- The centrality dependence of the antiproton per participant ratio is studied in Pb(160 AGeV)+Pb reactions. Antiproton production in collisions of heavy nuclei at the CERN/SPS seems considerably enhanced as compared to conventional hadronic physics, given by the antiproton production rates in pp and antiproton annihilation in p p reactions. This enhancement is consistent with the observation of strong in-medium effects in other hadronic observables and may be an indication of partial restoration of chiral symmetry.
| Verfasserangaben: | Marcus BleicherORCiDGND, Mohamed Belkacem, Steffen A. BassORCiDGND, Sven SoffORCiD, Horst StöckerORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-7126 |
| URL: | http://de.arxiv.org/abs/hep-ph/0004045 |
| Dokumentart: | Preprint |
| Sprache: | Englisch |
| Jahr der Fertigstellung: | 2000 |
| Jahr der Erstveröffentlichung: | 2000 |
| Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Datum der Freischaltung: | 14.04.2005 |
| Quelle: | http://de.arxiv.org/abs/hep-ph/0004045 , Report-no: LBNL-45444 |
| HeBIS-PPN: | 12880243X |
| Institute: | Physik / Physik |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Lizenz (Deutsch): |  Deutsches Urheberrecht |
