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Directed flow in heavy-ion collisions at NICA: What is interesting to measure?

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Abstract.

We study the formation of the directed flow of hadrons in nuclear collisions at energies between AGS and SPS in Monte Carlo cascade model. The slope of the proton flow at midrapidity tends to zero (softening) with increasing impact parameter of the collision. For very peripheral topologies this slope becomes negative (antiflow). The effect is caused by rescattering of hadrons in remnants of the colliding nuclei. Since the softening of the proton flow can be misinterpreted as indication of the presence of quark-gluon plasma, we propose several measurements at NICA facility which can help one to distinguish between the cases with and without the plasma formation.

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Authors and Affiliations

  1. Department of Physics, University of Oslo, Oslo, Norway

    L. V. Bravina & E. E. Zabrodin

  2. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia

    E. E. Zabrodin

  3. (Moscow Engineering Physics Institute), National Research Nuclear University “MEPhI”, Moscow, Russia

    L. V. Bravina & E. E. Zabrodin

  4. Frankfurt Institute for Advanced Studies (FIAS), Goethe University, Frankfurt, Germany

    L. V. Bravina & E. E. Zabrodin

Authors
  1. L. V. Bravina
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  2. E. E. Zabrodin
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Correspondence to L. V. Bravina.

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Communicated by D. Blaschke

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Bravina, L.V., Zabrodin, E.E. Directed flow in heavy-ion collisions at NICA: What is interesting to measure?. Eur. Phys. J. A 52, 245 (2016). https://doi.org/10.1140/epja/i2016-16245-4

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  • DOI: https://doi.org/10.1140/epja/i2016-16245-4

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