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Directed Flow of Baryons in Heavy-Ion Collisions | Yu.B.Ivanov
; E.G.Nikonov
; W.Noerenberg
; A.A.Shanenko
; V.D.Toneev
; | Date: |
1 Nov 2000 | Journal: | Acta Phys.Hung.New Ser.Heavy Ion Phys. 15 (2002) 117-130 | Subject: | nucl-th hep-ph | Abstract: | The collective motion of nucleons from high-energy heavy-ion collisions is analyzed within a relativistic two-fluid model for different equations of state (EoS). As function of beam energy the theoretical slope parameter F_y of the differential directed flow is in good agreement with experimental data, when calculated for the QCD-consistent EoS described by the statistical mixed-phase model. Within this model, which takes the deconfinement phase transition into account, the excitation function of the directed flow turns out to be a smooth function in the whole range from SIS till SPS energies. This function is close to that for pure hadronic EoS and exhibits no minimum predicted earlier for a two-phase bag-model EoS. Attention is also called to a possible formation of nucleon antiflow (F_y < 0) at energies of the order of 100 A GeV. | Source: | arXiv, nucl-th/0011004 | Services: | Forum | Review | PDF | Favorites |
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