Light (anti-)nuclei production and flow in relativistic heavy-ion collisions

TL;DR

This paper investigates the production and flow of light (anti-)nuclei in high-energy Pb+Pb collisions using a coalescence model based on transport simulations, comparing results with experimental data.

Contribution

It introduces a detailed coalescence model applied to transport simulation data to study light nuclei production and flow in relativistic heavy-ion collisions.

Findings

Transverse momentum spectra match experimental data.

Elliptic flow patterns are consistent with observations.

Coalescence parameters provide insights into nuclear formation mechanisms.

Abstract

Using the coalescence model based on the phase-space distributions of protons, neutrons, Lambdas and their antiparticles from a multiphase transport (AMPT) model, we study the production of deuteron, triton, helium 3, hypertriton, hyperhelium 3 and their antinuclei in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV. The resulting transverse momentum spectra, elliptic flows and coalescence parameters for these nuclei are presented and compared with available experimental data. We also show the constituent number scaled elliptic flows of these nuclei and discuss their implications.