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  • Letter
  • Open Access

Reaction plane alignment with linearly polarized photon in heavy-ion collisions

Xin Wu, Xinbai Li, Zebo Tang, Pengfei Wang, and Wangmei Zha*

  • State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

  • *first@ustc.edu.cn
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Phys. Rev. Research 4, L042048 – Published 23 December, 2022

DOI: https://doi.org/10.1103/PhysRevResearch.4.L042048

Abstract

The collective observables play critical roles in probing the properties of quark-gluon-plasma created in relativistic heavy-ion collisions, in which the information on initial collision geometry is crucial. However, the initial collision geometry, e.g., the reaction plane, cannot be directly extracted in the experiment. In this paper, we demonstrate the idea of determining the reaction plane via the feature of linear polarization of the coherent photoproduction process and discuss the advantages of the proposed approach in comparison with traditional methods.

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Phys. Rev. Research 4, L042048– Published 23 December, 2022
  • Received 11 July 2022
  • Accepted 10 December 2022
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