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Phenomenological study on correlation between flow harmonics and mean transverse momentum in nuclear collisions

by Chunjian Zhang, Jiangyong Jia, Shengli Huang

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Submission summary

As Contributors: Chunjian Zhang
Arxiv Link: (pdf)
Date accepted: 2022-02-28
Date submitted: 2022-02-08 17:45
Submitted by: Zhang, Chunjian
Submitted to: SciPost Physics Proceedings
Proceedings issue: 50th International Symposium on Multiparticle Dynamics (ISMD2021)
Academic field: Physics
  • High-Energy Physics - Phenomenology
  • Nuclear Physics - Theory
Approach: Phenomenological


To assess the properties of the quark-gluon plasma formed in nuclear collisions, the Pearson correlation coefficient between flow harmonics and mean transverse momentum, $\rho\left(v_{n}^{2},\left[p_{\mathrm{T}}\right]\right)$, reflecting the overlapped geometry of colliding atomic nuclei, is measured. $\rho\left(v_{2}^{2},\left[p_{\mathrm{T}}\right]\right)$ was found to be particularly sensitive to the quadrupole deformation of the nuclei. We study the influence of the nuclear quadrupole deformation on $\rho\left(v_{n}^{2},\left[p_{\mathrm{T}}\right]\right)$ in $\rm{Au+Au}$ and $\rm{U+U}$ collisions at RHIC energy using $\rm{AMPT}$ transport model, and show that the $\rho\left(v_{2}^{2},\left[p_{\mathrm{T}}\right]\right)$ is reduced by the prolate deformation $\beta_2$ and turns to change sign in ultra-central collisions (UCC).

Published as SciPost Phys. Proc. 10, 009 (2022)

Author comments upon resubmission

1) Please find the above link to download the *.tex file in 2) Please use the newest version

List of changes

1) add the new definitions of beta_2
2) elaborate the nonflow source
3) add more relevant references.

Submission & Refereeing History

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Resubmission 2108.11452v4 on 8 February 2022

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