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Multimessenger study of baryon-charged QCD matter in heavy-ion collisions

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arxiv 2408.08501 v2 pith:366JYHUH submitted 2024-08-16 nucl-th hep-exhep-phnucl-ex

Lipei Du This is my paper · ORCID
classification nucl-thhep-exhep-phnucl-ex
keywords spectracollisionsdileptonheavy-ionphotonbeamcreatedhydrodynamic
verification ladder T0 review T1 audit T2 compute T3 formal
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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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Critical net-proton number fluctuations with hydrodynamics

    nucl-th 2026-07 conditional novelty 6.0 of 10

    fRG critical fluctuations on hydrodynamic freeze-out hypersurfaces yield non-monotonic net-proton C4/C2 versus collision energy, absent in the HRG baseline.

  2. Initial-State Charge Density Predicts Final-State Net Charge Flow in Heavy-Ion Collisions

    nucl-th 2025-05 conditional novelty 6.0 of 10

    Initial baryon density, through a charge-odd cumulant estimator with a fitted coupling, predicts final net-proton elliptic flow in event-by-event hydrodynamic simulations.

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