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Event patterns extracted from anisotropic spectra of charged particles produced in Pb-Pb collisions at 2.76 TeV

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Abstract.

Event patterns extracted from anisotropic spectra of charged particles produced in lead-lead collisions at 2.76 TeV are investigated. We use an inverse power-law resulted from the QCD calculus to describe the transverse momentum spectrum in the hard scattering process, and a revised Erlang distribution resulted from a multisource thermal model to describe the transverse momentum spectrum and anisotropic flow in the soft excitation process. The pseudorapidity distribution is described by a three-Gaussian function which is a revision of the Landau hydrodynamic model. Thus, the event patterns at the kinetic freeze-out are displayed by the scatter plots of the considered particles in the three-dimensional velocity, momentum, and rapidity spaces.

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Authors and Affiliations

  1. Institute of Theoretical Physics & State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, 030006, Taiyuan, Shanxi, China

    Ya-Hui Chen & Fu-Hu Liu

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  1. Ya-Hui Chen
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  2. Fu-Hu Liu
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Correspondence to Fu-Hu Liu.

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Communicated by G. Torrieri

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Chen, YH., Liu, FH. Event patterns extracted from anisotropic spectra of charged particles produced in Pb-Pb collisions at 2.76 TeV. Eur. Phys. J. A 53, 230 (2017). https://doi.org/10.1140/epja/i2017-12430-3

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