Speaker
Description
Experimentally observed splitting of directed flow ($v_1$) between proton and anti-proton has been a challenging observable for the models to describe. We propose a two-component baryon deposition scheme driven by participants as well as binary collision sources. Evolving such a profile through a hybrid framework (hydrodynamics + hadronic transport), we are able to capture the $v_1$ of light flavor hadrons along with the splitting of $v_1$ between baryon and anti-baryon across beam energies ranging from $\sqrt{s_{NN}} =200$ GeV to $7.7$ GeV. We further demonstrate that recent STAR measurements of centrality dependence of $v_1$ split of oppositely charged hadrons that is expected to be signals of electromagnetic field receive large background contribution from the physics of baryon stopping.
| Theory / experiment | Theory |
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