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Rapidity bin multiplicity correlations from a multi-phase transport model

  • Regular Article - Theoretical Physics
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Abstract.

The central-arbitrary bin and forward-backward bin multiplicity correlation patterns for Au+Au collisions at \( \sqrt{s_{NN}} = 7.7-62.4\) GeV are investigated within a multi-phase transport (AMPT) model. An interesting observation is that for \( \sqrt{s_{NN}} < 19.6\) GeV Au+Au collisions, these two correlation patterns both have an increase with the pseudorapidity gap, while for \( \sqrt{s_{NN}} > 19.6\) GeV Au+Au collisions, they decrease. We mainly discuss the influence of different evolution stages of collision system on the central-arbitrary bin correlations, such as the initial conditions, partonic scatterings, hadronization scheme and hadronic scatterings. Our results show that the central-arbitrary bin multiplicity correlations have different responses to partonic phase and hadronic phase, which can be suggested as a good probe to explore the dynamical evolution mechanism of the hot dense matter in high-energy heavy-ion collisions.

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Authors and Affiliations

  1. School of Mathematics and Physics, China University of Geoscience, 430074, Wuhan, China

    Mei-Juan Wang & Gang Chen

  2. Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, 430079, Wuhan, China

    Yuan-Fang Wu

  3. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800, Shanghai, China

    Guo-Liang Ma

Authors
  1. Mei-Juan Wang
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  2. Gang Chen
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  3. Yuan-Fang Wu
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  4. Guo-Liang Ma
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Corresponding author

Correspondence to Mei-Juan Wang.

Additional information

Communicated by Xin-Nian Wang

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Wang, MJ., Chen, G., Wu, YF. et al. Rapidity bin multiplicity correlations from a multi-phase transport model. Eur. Phys. J. A 52, 46 (2016). https://doi.org/10.1140/epja/i2016-16046-9

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  • DOI: https://doi.org/10.1140/epja/i2016-16046-9

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