Resonance decay dynamics and their effects on $p_T$-spectra of pions in heavy-ion collisions

Abstract

We examine the influence of resonance decay dynamics on momentum spectra of pions in heavy-ion collisions. Taking the decay $\omega \to 3\pi$ as an example, we demonstrate how details of the decay matrix element can modify the physical observables. Such a dynamical effect is commonly neglected in statistical models. To remedy the situation, we formulate a theoretical framework for incorporating hadron dynamics into the analysis, which can be straightforwardly extended to describe general N-body decays.

7 pages, 3 figures, submitted to phys. rev. c

References in corpus (10)

• Heavy-Quark QCD Exotica
• Dispersive analysis of omega --> 3pi and phi --> 3pi decays
• Bose-Einstein condensation of pions in heavy-ion collisions at the CERN Large Hadron Collider (LHC) energies
• Influence of temperature dependent shear viscosity on elliptic flow at back- and forward rapidities in ultrarelativistic heavy-ion collisions
• Transverse-momentum spectra of strange particles produced in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV in the chemical non-equilibrium model
• Lee-Wick Theories at High Temperature
• Effects of $\rho$-meson width on pion distributions in heavy-ion collisions
• S-matrix formulation of thermodynamics with N-body scatterings
• Hadronic three-body decays of light vector mesons
• The role of P-wave inelasticity in J/psi to pi+pi-pi0

Cited by in corpus (8)

• Fast resonance decays in nuclear collisions
• Longitudinal Dynamics of High Baryon Density Matter in High Energy Heavy-Ion Collisions
• Thermodynamics of strange baryon system from coupled-channel analysis and missing states
• Thermal contribution of unstable states
• Density of States of a Coupled-Channel System
• Correlated pion-proton pair emission off hot and dense QCD matter
• Pion production and absorption in heavy-ion collisions
• Quantification of the low-$p_{\mathrm{T}}$ pion excess in heavy-ion collisions at the LHC and top RHIC energy