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Pseudorapidity density distributions of charged particles and transverse-momentum spectra of identified particles in pp collisions in the PACIAE 4.0 model

Zhen Xie1, An-Ke Lei2, Hua Zheng1,*, Wenchao Zhang1, Dai-Mei Zhou2,†, Zhi-Lei She3, Yu-Liang Yan4, and Ben-Hao Sa2,4,‡

  • *Contact author: zhengh@snnu.edu.cn
  • †Contact author: zhoudm@mail.ccnu.edu.cn
  • ‡Contact author: sabhliuym35@qq.com
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Phys. Rev. C 112, 014908 – Published 22 July, 2025

DOI: https://doi.org/10.1103/vfvt-m3dw

Abstract

The pseudorapidity density distributions of charged particles and the transverse-momentum spectra of identified particles in proton-proton (pp) collisions at the center-of-mass energies ranging from s=200 GeV to 13 TeV have been systematically studied using the newly released parton and cascade model paciae 4.0 based on pythia 8.3. The available experimental data are well reproduced across all analyzed aspects. This theoretical method can be easily extended to anywhere the experimental data for pp collisions are currently unavailable. Furthermore, since pp collisions serve as the baseline for heavy-ion collisions, our results can provide a valuable resource for both experimentalists and theorists.

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Phys. Rev. C 112, 014908– Published 22 July, 2025
  • Received 13 March 2025
  • Revised 19 May 2025
  • Accepted 2 July 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

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