Cosmological particle creation in a hadronic fluid
arXiv:1412.3977 · doi:10.1103/PhysRevD.91.104025
Abstract
Acoustic perturbations in an expanding hadronic fluid at temperatures below the chiral transition point represent massless pions propagating in curved spacetime geometry. In comoving coordinates the corresponding analog metric tensor describes a hyperbolic FRW spacetime. We study the analog cosmological particle creation of pions below the critical point of the chiral phase transition. We compare the cosmological creation spectrum with the spectrum of analog Hawking radiation at the analog trapping horizon.
13 pages, 4 figures, revised to match the version published in Phys. Rev. D., section IIB rewritten, section IIIC expanded, discussion on adiabaticity expanded and clarified, three references added, results unchanged
References in corpus (12)
- Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
- Fiber-optical analogue of the event horizon
- Freeze-out Conditions in Heavy Ion Collisions from QCD Thermodynamics
- "Cosmological" quasiparticle production in harmonically trapped superfluid gases
- Analogue model of a FRW universe in Bose-Einstein condensates: Application of the classical field method
- Centrality dependence of hadronization and chemical freeze-out conditions in heavy ion collisions at \sqrt s_{NN} = 2.76 TeV
- Cosmological particle production in emergent rainbow spacetimes
- Scaling properties at freeze-out in relativistic heavy ion collisions
- Dynamical Freeze-out in 3-Fluid Hydrodynamics
- Space-Time Description of Scalar Particle Creation by a Homogeneous Isotropic Gravitational Field
- Particle creation in Bose--Einstein condensates: Theoretical formulation based on conserving gapless mean field theory
- Analogue surface gravity near the QCD chiral phase transition