• Accepted Paper

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

Abhisek Praharaj, Aradhana Panday, Sandeep Chatterjee, and Md Nasim

Phys. Rev. C - Accepted 7 October, 2026

DOI: https://doi.org/10.1103/87pg-bbqv

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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