Measurement methods of radial flow in relativistic heavy-ion collisions

作者:Yang, Peng; Li, Lin; Zhou, Yu; Li, Zhiming; Xu, Mingmei; Zhao, Yeyin; Wu, Yuanfang*
来源:Physical Review C - Nuclear Physics, 2021, 104(1): 014901.
DOI:10.1103/PhysRevC.104.014901

摘要

Radial flow can be directly extracted from the azimuthal distribution of mean transverse rapidity. We apply the event-plane method and the two-particle correlation method to estimate the anisotropic Fourier coefficient of the azimuthal distribution of mean transverse rapidity. Using the event sample generated by a multiphase transport model with string melting, we show that both methods are effective. For the two-particle correlation method to be reliable, the mean number of particles in an azimuthal bin must be above a certain threshold. Using these two methods, anisotropic radial flow can be estimated in a model-independent way in relativistic heavy-ion collisions.

  • 单位
    武汉理工大学

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