Is the existence of a softest point in the directed flow excitation function an unambiguous signal for the creation of a quark-gluon plasma?

Marcus Bleicher; Jörg Aichelin

doi:10.1016/j.physletb.2005.02.035

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Is the existence of a softest point in the directed flow excitation function an unambiguous signal for the creation of a quark-gluon plasma?

Marcus Bleicher·Jörg Aichelin

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Abstract

The excitation function of the in-plane directed flow of nucleons is studied within a non-equilibrium transport approach. It is demonstrated that a local minimum in the excitation function of the directed flow develops, which is not related to a transition into a quark-gluon plasma (QGP) phase. It is a consequence of the dynamical softening of the underlying equation of state, due to the onset of resonance matter and particle production. Thus, the interpretation of this minimum as a 'smoking gun' signature for the creation of a QGP is premature.

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Marcus Bleicher, Jörg Aichelin. 2002-05-27. Is the existence of a softest point in the directed flow excitation function an unambiguous signal for the creation of a quark-gluon plasma?. https://doi.org/10.1016/j.physletb.2005.02.035

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