Nuclear Clusters as a Probe for Expansion Flow in Heavy Ion Reactions at 10-15AGeV

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dc.creatorMattiello, R.
dc.creatorSorge, H.
dc.creatorStöcker, H.
dc.creatorGreiner, W.
dc.date1996-07-02
dc.date.accessioned2026-07-07T11:15:49Z
dc.date.available2026-07-07T11:15:49Z
dc.descriptionA phase space coalescence description based on the Wigner-function method for cluster formation in relativistic nucleus-nucleus collisions is presented. The momentum distributions of nuclear clusters d,t and He are predicted for central Au(11.6AGeV)Au and Si(14.6AGeV)Si reactions in the framework of the RQMD transport approach. Transverse expansion leads to a strong shoulder-arm shape and different inverse slope parameters in the transverse spectra of nuclear clusters deviating markedly from thermal distributions. A clear ``bounce-off'' event shape is seen: the averaged transverse flow velocities in the reaction plane are for clusters larger than for protons. The cluster yields --particularly at low $p_t$ at midrapidities-- and the in-plane (anti)flow of clusters and pions change if suitably strong baryon potential interactions are included. This allows to study the transient pressure at high density via the event shape analysis of nucleons, nucleon clusters and other hadrons.
dc.description38 pages, 9 figures, LaTeX type, eps used, subm. to Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/nucl-th/9607003
dc.identifierhttp://arxiv.org/abs/nucl-th/9607003
dc.identifierPhys.Rev.C55:1443-1454,1997
dc.identifierdoi:10.1103/PhysRevC.55.1443
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192512
dc.subjectNuclear Theory
dc.titleNuclear Clusters as a Probe for Expansion Flow in Heavy Ion Reactions at 10-15AGeV
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