Impact of the pre-equilibrium phase for the determination of nuclear geometry in high-energy isobar collisions

Abstract

Ultrarelativistic isobar collisions have been proposed as a useful tool to investigate nuclear structure. These systems are not created in equilibrium, rather undergo a pre-thermalization stage. In this stage, some of the initial structure information may be lost and additional effects introduced. The objective of this paper is to study this possibility in the extreme case of a "free-streaming" pre-equilibrium stage. We do this by computing estimators for ratios of various measured (or measurable) quantities (elliptic and triangular flows, mean transverse momentum and associated cumulants, correlators between elliptic or triangular flows and mean transverse momentum, symmetric cumulant and two-plane correlator) and study their sensitivity to the duration of the free-streaming stage. We find that the correlators between elliptic or triangular flows and mean transverse momentum, the so-called ${\rho }_2$ and ${\rho }_3$, are indeed sensitive to the duration of the free-streaming stage and that the normalized symmetric cumulant, $\epsilon NSC(2,3)$ might also depend on this duration.

Version accepted for publishing in PRC v4: 27 pages, 13 figures

References in corpus (27)

• Alternative ansatz to wounded nucleon and binary collision scaling in high-energy nuclear collisions
• Multi-system Bayesian constraints on the transport coefficients of QCD matter
• Bayesian analysis of heavy ion collisions with the heavy ion computational framework Trajectum
• Phenomenological constraints on the transport properties of QCD matter with data-driven model averaging
• A transverse momentum differential global analysis of Heavy Ion Collisions
• Evidence of quadrupole and octupole deformations in ${}^{96}$Zr+${}^{96}$Zr and ${}^{96}$Ru+${}^{96}$Ru collisions at ultra-relativistic energies
• Do nuclear collisions create a locally equilibrated quark-gluon plasma?
• Viscous Effects on the Mapping of the Initial to Final State in Heavy Ion Collisions
• Probing triaxial deformation of atomic nuclei in high-energy heavy ion collisions
• Determine the neutron skin type by relativistic isobaric collisions
• Evidence of the triaxial structure of ${}^{129}$Xe at the Large Hadron Collider
• Free-streaming approximation in early dynamics of relativistic heavy-ion collisions
• Probing the neutron skin with ultrarelativistic isobaric collisions
• Measurement of the azimuthal anisotropy of charged-particle production in Xe+Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44$ TeV with the ATLAS detector
• Separating the impact of nuclear skin and nuclear deformation in high-energy isobar collisions
• Correlation between mean transverse momentum and anisotropic flow in heavy-ion collisions
• Probing nuclear quadrupole deformation from correlation of elliptic flow and transverse momentum in heavy ion collisions
• Correlations between flow and transverse momentum in Xe+Xe and Pb+Pb collisions at the LHC with the ATLAS detector: a probe of the heavy-ion initial state and nuclear deformation
• Scaling approach to nuclear structure in high-energy heavy-ion collisions
• Hydrodynamic Predictions for Mixed Harmonic Correlations in 200 GeV Au+Au Collisions
• Probing nuclear structure with mean transverse momentum in relativistic isobar collisions
• Ratios of collective flow observables in high-energy isobar collisions are insensitive to final state interactions
• Inferring nuclear structure from heavy isobar collisions using Trajectum
• Probing the nuclear deformation with three-particle asymmetric cumulant in RHIC isobar runs
• Pre-hydrodynamic evolution in large and small systems
• Assessing the ultracentral flow puzzle in hydrodynamic modeling of heavy-ion collisions
• Constraints on neutron skin thickness and nuclear deformations using relativistic heavy-ion collisions from STAR

Cited by in corpus (1)

• Benchmarking nuclear matrix elements of $0\nu \beta \beta$ decay with high-energy nuclear collisions