Effects of a phase transition on HBT correlations in an integrated Boltzmann+hydrodynamics approach
- A systematic study of HBT radii of pions, produced in heavy ion collisions in the intermediate energy regime (SPS), from an integrated (3+1)d Boltzmann+hydrodynamics approach is presented. The calculations in this hybrid approach, incorporating an hydrodynamic stage into the Ultra-relativistic Quantum Molecular Dynamics transport model, allow for a comparison of different equations of state retaining the same initial conditions and final freeze-out. The results are also compared to the pure cascade transport model calculations in the context of the available data. Furthermore, the effect of different treatments of the hydrodynamic freeze-out procedure on the HBT radii are investigated. It is found that the HBT radii are essentially insensitive to the details of the freeze-out prescription as long as the final hadronic interactions in the cascade are taken into account. The HBT radii RL and RO and the RO/RS ratio are sensitive to the EoS that is employed during the hydrodynamic evolution. We conclude that the increased lifetime in case of a phase transition to a QGP (via a Bag Model equation of state) is not supported by the available data.
Verfasserangaben: | Qingfeng LiORCiD, Jan SteinheimerORCiDGND, Hannah PetersenORCiDGND, Marcus BleicherORCiDGND, Horst StöckerORCiDGND |
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URN: | urn:nbn:de:hebis:30:3-764492 |
DOI: | https://doi.org/https://doi.org/10.1016/j.physletb.2009.03.012 |
ISSN: | 0370-2693 |
Titel des übergeordneten Werkes (Englisch): | Physics Letters B |
Verlag: | Elsevier |
Verlagsort: | Amsterdam [u.a.] |
Dokumentart: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Veröffentlichung (online): | 14.03.2009 |
Datum der Erstveröffentlichung: | 14.03.2009 |
Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Datum der Freischaltung: | 27.09.2023 |
Freies Schlagwort / Tag: | Dynamic transport; Equation of state; HBT correlation |
Jahrgang: | 674 |
Ausgabe / Heft: | 2 |
Seitenzahl: | 6 |
Erste Seite: | 111 |
Letzte Seite: | 116 |
HeBIS-PPN: | 513365753 |
Institute: | Physik / Physik |
Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) | |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Lizenz (Deutsch): | Creative Commons - CC BY - Namensnennung 4.0 International |