Freeze-out and anisotropic flow in microscopic models

• Autorzy: Bravina L. , Tywoniuk K. , Zabrodin E. , Burau G. , Bleibel J. , Fuchs Ch. , Faessler A.
• Konferencja: Proceedings of the 18th International conference on Nucleus-Nucleus Collisions QUARK MATTER 2005, 4-9 August, 2005, Budapest, Hungary
• Języki publikacji: EN

Abstrakty

EN

It appears that in microscopic calculations hadrons are continuously emitted from the whole reaction volume. Different species decouple at different times. At RHIC energies significant fractions of both mesons and baryons are emitted from the surface region within the first two fm/c. The hadrons contribute differently to the formation and evolution of the anisotropic flow, which can be decomposed into three components: (i) flow created by hadrons emitted from the surface at the onset of the collision; (ii) flow produced by jets; (iii) hydrodynamic flow. Due to these features, e.g., the elliptic flows of mesons and baryons have different transverse momentum dependences. Comparison with experimental data reveals that centrality, rapidity, and transverse momentum dependences of the anisotropic flow are reproduced, at least qualitatively, by the microscopic models.

Słowa kluczowe

EN

ultrarelativistic heavy-ion collisions; elliptic flow; freeze-out of particles; Monte-Carlo quark-gluon string model

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2006
• Tom: Vol. 51,suppl.3
• Strony: 3--6
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Bravina L.

autor

Tywoniuk K.

autor

Zabrodin E.

autor

Burau G.

autor

Bleibel J.

autor

Fuchs Ch.

autor

Faessler A.

• Department of Physics, University of Oslo, PB 1048 Blindern, N-0316 Oslo, Norway and Institute for Nuclear Physics, Moscow State University, RU-119899 Moscow, Russia, Tel.: [phone], Fax: [phone],

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