DRAGON: Monte Carlo generator of particle production from a fragmented fireball in ultrarelativistic nuclear collisions

TL;DR

DRAGON is a Monte Carlo generator simulating hadron production from a fragmented fireball in ultrarelativistic nuclear collisions, incorporating azimuthal asymmetry and flexible parameters for diverse collision scenarios.

Contribution

It introduces a novel Monte Carlo generator that models fragmentation of the fireball and emission of hadrons, extending the blast wave model with azimuthal asymmetry.

Findings

Enables detailed phase-space analysis of hadron emission

Supports tuning for various fireball geometries

Compatible with afterburner simulations

Abstract

A Monte Carlo generator of the final state of hadrons emitted from an ultrarelativistic nuclear collision is introduced. An important feature of the generator is a possible fragmentation of the fireball and emission of the hadrons from fragments. Phase space distribution of the fragments is based on the blast wave model extended to azimuthally non-symmetric fireballs. Parameters of the model can be tuned and this allows to generate final states from various kinds of fireballs. A facultative output in the OSCAR1999A format allows for a comprehensive analysis of phase-space distributions and/or use as an input for an afterburner.