Conveners
Parallel Session - Collective dynamics III
- Shinichi Esumi (University of Tsukuba (JP))
A wide variety of recent measurements from small systems indicate that there are collective flow phenomena in these systems, which are well described by hydrodynamics. However, it is widely understood that all flow measurements are affected by non-flow correlations. In order to disentangle the genuine hydrodynamical flow from other contributions, we have systematically studied the $v_2$ as a...
Short-lived hadronic resonances are used to study different aspects of particle production
and collision dynamics in pp, p—A and relativistic heavy-ion collisions. The yields of
resonances are sensitive to the competing processes of hadron rescattering and regeneration,
thus making these particles unique probes of the properties of the late hadronic phase.
Measurements of resonances...
We carry out a principal component analysis of fluctuations in a hydrodynamic simulation of heavy-ion collisions, and compare with experimental data from the CMS collaboration. The principal components of anisotropic flow reproduce the trends seen in data, but multiplicity fluctuations show an interesting difference in transverse momentum dependence. We checked this is also the case for other...
Using deep neural network, the nature of the QCD transition can be identified from only the final-state pion spectra from hybrid model simulations of heavy-ion collisions. Within this hybrid model, a viscous hydrodynamic model is coupled to a hadronic cascade “after-burner”. Two different types of equations of state (EoS) of the medium are used in the hydrodynamic evolution. The resulting...
We present state-of-the-art constraints on the properties of the quark-gluon plasma by performing a comprehensive Bayesian model-to-data comparison of heavy-ion measurements. Soft observables from both RHIC and the LHC are combined into a global Bayesian analysis, enabling us to obtain more reliable constraints on the transport coefficients of QCD, in particular for the temperature dependence...
The production of light neutral mesons in AA collisions probes the physics of the Quark-Gluon Plasma (QGP), which is formed in heavy-ion collisions at the LHC. More specifically, the centrality dependent neutral meson production in AA collisions compared to its production in minimum-bias pp collisions, known as nuclear modification factor, provides information on the energy loss of partons...
We present results on azimuthally-integrated and azimuthally-dependent analyses of identical pion intensity interferometry (HBT) studied in collisions of Au+Au at $\sqrt{s_{NN}}=2.4$ GeV. The data are taken with the HADES spectrometer at SIS18/GSI Darmstadt. We study the dependence of the space-time extent of the pion emitting source on the pair transverse momentum and on the collision...
