Multimessenger study of baryon-charged QCD matter in heavy-ion collisions
arXiv:2408.08501 · doi:10.1016/j.physletb.2025.139270
Abstract
Multimessenger studies of heavy-ion collisions, using hadrons and electromagnetic probes, can reveal the properties of the created QCD matter from different perspectives. This study calculates the thermal dilepton invariant mass spectra and thermal photon transverse momentum spectra in Au+Au collisions at low beam energies from the Beam Energy Scan program, using a (3+1)-dimensional multistage hydrodynamic model calibrated by rapidity-dependent hadronic distributions. The effects of thermodynamic rapidity variation, baryon chemical potential, and fluid expansion on the spectra are explored. Methods for extracting temperature from photon and dilepton spectra are examined by comparison with the underlying hydrodynamic temperature. The possibility of combining photon and dilepton spectra to extract radial flow is also investigated. This study provides insights into measuring the thermodynamic properties of the created systems in heavy-ion collisions using multiple messengers through two fundamental interactions within the same framework.
arXiv commentv1: 9 pages, 8 figures; v2: Minor revision, accepted by Physics Letters B
References in corpus (45)
- Microscopic Models for Ultrarelativistic Heavy Ion Collisions
- Relativistic Hadron-Hadron Collisions in the Ultra-Relativistic Quantum Molecular Dynamics Model (UrQMD)
- Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
- Decoding the phase structure of QCD via particle production at high energy
- Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
- Bulk Properties of the Medium Produced in Relativistic Heavy-Ion Collisions from the Beam Energy Scan Program
- 3+1D hydrodynamic simulation of relativistic heavy-ion collisions
- Photon Emission from Quark-Gluon Plasma: Complete Leading Order Results
- Mapping the Phases of Quantum Chromodynamics with Beam Energy Scan
- Enhanced production of direct photons in Au+Au collisions at sqrt(s_NN)=200 GeV and implications for the initial temperature
- The production of photons in relativistic heavy-ion collisions
- Higher flow harmonics from (3+1)D event-by-event viscous hydrodynamics
- Heavy Ion Collisions: Achievements and Challenges
- QCD thermalization: Ab initio approaches and interdisciplinary connections
- Phenomenological constraints on the transport properties of QCD matter with data-driven model averaging
- Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
- Multi-Messenger Astrophysics
- Net baryon diffusion in fluid dynamic simulations of relativistic heavy-ion collisions
- Next-to-leading order thermal photon production in a weakly coupled quark-gluon plasma
- Thermal photons as a quark-gluon plasma thermometer revisited
- Thermal Dileptons as Fireball Thermometer and Chronometer
- Direct Photons from Relativistic Heavy-Ion Collisions
- The First fm/c of Heavy-Ion Collisions
- Measurements of Dielectron Production in AuAu Collisions at = 200 GeV from the STAR Experiment
- Dielectron Mass Spectra from Au+Au Collisions at = 200 GeV
- Multi-messenger heavy-ion collision physics
- Anisotropic flow of thermal photons as a quark-gluon plasma viscometer
- Dilepton emission in high-energy heavy-ion collisions with viscous hydrodynamics
- Equilibrium Statistical-Thermal Models in High-Energy Physics
- (3+1)-dimensional dissipative relativistic fluid dynamics at non-zero net baryon density
- Future Physics Perspectives on the Equation of State from Heavy Ion Collisions to Neutron Stars
- The QCD phase diagram and Beam Energy Scan physics: a theory overview
- Beam-energy and centrality dependence of direct-photon emission from ultra-relativistic heavy-ion collisions
- Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au+Au collisions at and 200 GeV
- Bulk Properties of the System Formed in Au+Au Collisions at = 14.5 GeV
- Intermediate mass dileptons as pre-equilibrium probes in heavy ion collisions
- Electromagnetic radiation as a probe of the initial state and of viscous dynamics in relativistic nuclear collisions
- Probing initial baryon stopping and equation of state with rapidity-dependent directed flow of identified particles
- Dilepton Radiation from Strongly Interacting Systems
- Structure in the speed of sound: from neutron stars to heavy-ion collisions
- Dilepton production at next-to-leading order and intermediate invariant-mass observables
- Virtual Photons Shed Light on the Early Temperature of Dense QCD Matter
- Photon Production from a Quark-Gluon-Plasma at Finite Baryon Chemical Potential
- Rapidity scan with multistage hydrodynamic and statistical thermal models
- Bulk medium properties of heavy-ion collisions from the beam energy scan with a multistage hydrodynamic model