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PreprintCC BY 4.0arXiv

Dipolar flow of identified hadrons at mid-rapidity using transport models

  • Abhisek Praharaj
  • Aradhana Panday
  • Sandeep Chatterjee
  • Md Nasim
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Abstract

We report a transport model study of the rapidity even component of dipolar flow, v1even, for identified charged hadrons at mid-rapidity in Au+Au collisions at √(sNN) = 7.7−200 GeV. The analysis is performed using the AMPT model. In addition, HIJING model is used to quantify residual non-flow contributions in v1even. The v1even of identified hadrons (π, K, and p) shows no significant difference between particles and anti-particles at √(sNN) = 200 GeV. However, a clear splitting between proton and anti-proton v1even develops with decreasing beam energy, while no corresponding difference is observed for mesons (π± and K±). These results indicate that the proton-antiproton difference in v1even is sensitive to baryon transport and antibaryon annihilation in the hadronic medium. Our study highlights the potential of identified-particle v1even measurements at RHIC Beam Energy Scan energies as a novel probe of baryon stopping and the evolution of the hadronic medium.

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Cite

BibTeXRIS
BibTeX
@misc{praharaj2026dipolar,
  title = {{Dipolar flow of identified hadrons at mid-rapidity using transport models}},
  author = {Abhisek Praharaj and Aradhana Panday and Sandeep Chatterjee and Md Nasim},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2607.00703},
  eprint = {2607.00703},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.00703},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Dipolar flow of identified hadrons at mid-rapidity using transport models
AU  - Abhisek Praharaj
AU  - Aradhana Panday
AU  - Sandeep Chatterjee
AU  - Md Nasim
PY  - 2026
DA  - 2026/09/04
PB  - arXiv
DO  - 10.48550/arxiv.2607.00703
UR  - https://arxiv.org/abs/2607.00703
AB  - We report a transport model study of the rapidity even component of dipolar flow, v_1^even, for identified charged hadrons at mid-rapidity in Au+Au collisions at √(s_NN) = 7.7−200 GeV. The analysis is performed using the AMPT model. In addition, HIJING model is used to quantify residual non-flow contributions in v_1^even. The v_1^even of identified hadrons (π, K, and p) shows no significant difference between particles and anti-particles at √(s_NN) = 200 GeV. However, a clear splitting between proton and anti-proton v_1^even develops with decreasing beam energy, while no corresponding difference is observed for mesons (π^± and K^±). These results indicate that the proton-antiproton difference in v_1^even is sensitive to baryon transport and antibaryon annihilation in the hadronic medium. Our study highlights the potential of identified-particle v_1^even measurements at RHIC Beam Energy Scan energies as a novel probe of baryon stopping and the evolution of the hadronic medium.
ER  -