# Hadronization using the Wigner function approach for a multiphase transport model

## TL;DR

This paper introduces an improved hadronization algorithm in a multiphase transport model that uses Wigner functions to determine formation probabilities, conserving charges and analyzing various collision observables across different energies.

## Contribution

It presents a novel hadronization approach based on Wigner functions that enhances the coalescence process in a multiphase transport model, with no free parameters.

## Key findings

- Improved description of anisotropic flows.
- Accurate proton directed flow energy dependence.
- Consistent particle yield ratios and di-hadron correlations.

## Abstract

In the string melting version of a multiphase transport model, the hadronization algorithm has been improved by favoring parton combinations close in not only coordinate space but also momentum space. Formation probabilities of mesons, baryons, and antibaryons during hadronization are determined by their corresponding Wigner functions for the valence parton combinations with no free parameters, and the net baryon, electric, and strangeness charges are conserved during quark coalescence. Effects of the hadronization on anisotropic flows, collision energy dependence of the proton directed flow, relative particle yield ratios, as well as di-hadron correlations in relativistic heavy-ion collisions at the energies ranging from RHIC beam energy scan to LHC have been extensively discussed.