Longitudinal fluid-dynamics for ultrarelativistic heavy-ion collisions

  • We develop a 1+1 dimensional hydrodynamical model for central heavy-ion collisions at ultrarelativistic energies. Deviations from Bjorken's scaling are taken into account by implementing finite-size profiles for the initial energy density. The calculated rapidity distributions of pions, kaons and antiprotons in central Au+Au collisions at the c.m. energy 200 AGeV are compared with experimental data of the BRAHMS Collaboration. The sensitivity of the results to the choice of the equation of state, the parameters of initial state and the freeze-out conditions is investigated. The best fit of experimental data is obtained for a soft equation of state and Gaussian-like initial profiles of the energy density.

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Metadaten
Author:Leonid M. Satarov, Andrey V. Merdeev, Igor N. MishustinORCiDGND, Horst StöckerORCiDGND
URN:urn:nbn:de:hebis:30-32294
DOI:https://doi.org/10.1103/PhysRevC.75.024903
ISSN:1089-490X
ISSN:2469-9993
ISSN:2469-9985
ISSN:0556-2813
ArXiv Id:http://arxiv.org/abs/hep-ph/0606074
Document Type:Preprint
Language:English
Year of Completion:2006
Date of first Publication:2006/06/07
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/10/31
Tag:equation of state; hydrodynamics; pions
Page Number:14
First Page:1
Last Page:14
Note:
Preprint, erschienen in: Physical review. C, Nuclear physics, 75.2007, Nr. 2, Art. 024903, doi:10.1103/PhysRevC.75.024903
Source:http://www.arxiv.org/abs/hep-ph/0606074, preprint submitted to Elsevier Science
HeBIS-PPN:190701064
Institutes:Physik / Physik
Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS)
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:10.00.00 THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for experimental methods and instrumentation for elementary-particle physics, see section 29) / 12.00.00 Specific theories and interaction models; particle systematics / 12.38.-t Quantum chromodynamics; Quarks, gluons, and QCD in nuclear reactions, see 24.85.+p / 12.38.Mh Quark-gluon plasma (see also 25.75.Nq Quark deconfinement, quark-gluon plasma production and phase transitions in relativistic heavy ion collisions; see also 21.65.Qr Quark matter)
20.00.00 NUCLEAR PHYSICS / 24.00.00 Nuclear reactions: general / 24.10.-i Nuclear reaction models and methods / 24.10.Nz Hydrodynamic models
20.00.00 NUCLEAR PHYSICS / 25.00.00 Nuclear reactions: specific reactions / 25.75.-q Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions)
20.00.00 NUCLEAR PHYSICS / 25.00.00 Nuclear reactions: specific reactions / 25.75.-q Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions) / 25.75.Nq Quark deconfinement, quark-gluon plasma production, and phase transitions (see also 12.38.Mh Quark-gluon plasma in quantum chromodynamics; 21.65.Qr Quark matter in nuclear matter)
Licence (German):License LogoDeutsches Urheberrecht