Thermalization of Hadrons via Hagedorn States

Abstract

Hagedorn states are characterized by being very massive hadron-like resonances and by not being limited to quantum numbers of known hadrons. To generate such a zoo of different Hagedorn states, a covariantly formulated bootstrap equation is solved by ensuring energy conservation and conservation of baryon number $B$, strangeness $S$ and electric charge $Q$. The numerical solution of this equation provides Hagedorn spectra, which enable to obtain the decay width for Hagedorn states needed in cascading decay simulations. A single (heavy) Hagedorn state cascades by various two-body decay channels subsequently into final stable hadrons. All final hadronic observables like masses, spectral functions and decay branching ratios for hadronic feed down are taken from the hadronic transport model UrQMD. Strikingly, the final energy spectra of resulting hadrons are exponential showing a thermal-like distribution with the characteristic Hagedorn temperature.

References in corpus (8)

• Additional Strange Hadrons from QCD Thermodynamics and Strangeness Freeze-out in Heavy Ion Collisions
• Hadron Mass Spectrum from Lattice QCD
• Fast Equilibration of Hadrons in an Expanding Fireball
• The order, shape and critical point for the quark-gluon plasma phase transition
• Chemical equilibration due to heavy Hagedorn states
• The thermodynamics for a hadronic gas of fireballs with internal color structures and chiral fields
• Quark Gluon Bags as Reggeons
• Shear viscosity of hadronic gas mixtures

Cited by in corpus (18)

• Melting Hadrons, Boiling Quarks
• Hadron Resonance Gas Model with Induced Surface Tension
• Understanding the $p/\pi$ ratio at LHC due to QCD mass spectrum
• Glueballs amass at RHIC and LHC Colliders! - The early quarkless 1st order phase transition at $T=270$ MeV - from pure Yang-Mills glue plasma to GlueBall-Hagedorn states
• Threshold Collision Energy of the QCD Phase Diagram Tricritical Endpoint
• Fast Dynamical Evolution of Hadron Resonance Gas via Hagedorn States
• Hagedorn bag-like model with a crossover transition meets lattice QCD
• Proton Form Factor Ratio, ${\mu }_p{G}_E^p/G_M^p$ from Double Spin Asymmetry
• Recent lattice QCD results and phase diagram of strongly interacting matter
• Strangeness Production in low energy Heavy Ion Collisions via Hagedorn Resonances
• Backward nucleon production by heavy baryonic resonances in proton-nucleus collisions
• The Shear Viscosity to Entropy Density Ratio of Hagedorn States
• Hadron resonance gas EoS and the fluidity of matter produced in HIC
• Equilibration of hadrons in HICs via Hagedorn States
• Production of Light Nuclei in Heavy Ion Collisions via Hagedorn Resonances
• Thermodynamics of heavy-light hadrons
• Probing the tricritical endpoint of QCD phase diagram at NICA-FAIR energies
• Testing the hadronic spectrum in the strange sector