Conveners
Heavy Ion Collisions and Critical Phenomena
- Ivan Kisel (Johann-Wolfgang-Goethe Univ. (DE))
Heavy Ion Collisions and Critical Phenomena
- Shreya Roy (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))
Heavy Ion Collisions and Critical Phenomena
- Evgeny Zabrodin
Heavy Ion Collisions and Critical Phenomena
- Tamas Novak
Heavy Ion Collisions and Critical Phenomena
- Jaroslav Bielcik (Czech Technical University in Prague (CZ))
Heavy Ion Collisions and Critical Phenomena
- Daniele De Gruttola (Salerno University and INFN)
Heavy Ion Collisions and Critical Phenomena
- There are no conveners in this block
The PHENIX experiment ceased data taking in 2016, but the collaboration continues to produce impactful results by leveraging its rich dataset and advancing analysis techniques. In this talk, I will present recent PHENIX heavy ion results that offer insight into the time evolution of ion collisions and the mechanisms of hadronization at RHIC energies. These include measurements with clean...
STAR experiment โnon-spinโ results highlight
In this talk, we present a comprehensive summary of recent heavy-flavor results from the ALICE experiment, based on the high-statistics data collected during LHC Run 3. Heavy quarks (charm and beauty), produced in the early stages of high-energy collisions, serve as powerful probes of Quantum Chromodynamics (QCD) across different collision systems. In proton--proton (pp) collisions, they offer...
Fragmentation functions are fundamental components of the factorization approach which is used to calculate the production cross sections of heavy-flavor hadrons within QCD. Due to their non-perturbative nature, they cannot be computed a priori and are typically extracted from measurements in clean environments such as electron-positron ($\rm e^+e^-$) or electron-proton ($\rm e^-p$)...
The elliptic flow describes the collective motion of particles produced in heavy-ion collisions, particularly in non-central collisions. This flow arises from the hydrodynamic effect caused by the pressure gradients within the quark-gluon plasma (QGP) medium formed during the collisions. d+Au collisions are particularly important for understanding nuclear effects and the impact of cold nuclear...
Understanding the QCD phase structure and the possible existence of a critical point remains one of the central goals of the heavy-ion program at RHIC. In this talk, we will present recent STAR results across multiple observables that probe different aspects of the hot and dense matter created in Au+Au collisions.
These include two-particle transverse momentum correlations and event-by-event...
Anisotropic flow measurements in heavy-ion collisions are sensitive to the spatial distribution of the initial state, and QGP transport properties such as the shear viscosity to entropy density ratio $(\eta/s)$. Hydrodynamic models successfully describe such flow measurements over a wide centrality range. However, the hydrodynamic description of anisotropic flow deviates from the data in...
The PHENIX experiment measured the centrality dependence of two-pion Bose-Einstein correlation functions in โ๐ ๐โข๐=200GeV Au+Au collisions at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The data are well represented by Lรฉvy-stable source distributions. The extracted source parameters are the correlation-strength parameter ๐, the Lรฉvy index of stability ๐ผ, and the...
High-energy heavy-ion collisions offer a unique opportunity to study the dynamics of nuclear matter. Analyzing flow harmonics such as directed, elliptic, and higher order flow harmonics ($v_{1}$, $v_{2}$, and $v_{n}$, $n >$ 2) provides insights into the dynamics and properties of the Quark-Gluon Plasma (QGP). The $v_{1}$ slope ($dv_{1}/dy$) at mid-rapidity of net-baryons is expected to be...
The Chiral Magnetic Effect (CME) is a quantum phenomenon arising from the interplay of topological charge fluctuations and strong magnetic fields in the early stages of heavy-ion collisions. The STAR experiment at RHIC provides a unique environment to search for CME signatures through high-energy nucleus-nucleus collisions. This talk presents an overview of STARโs CME program, with a focus on...
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Directed flow ($v_1$) is the first-order harmonic of the Fourier expansion of the particle azimuthal angle distribution with respect to the reaction plane. It describes the collective sideward deflection of particles and is believed to be generated in the very early stages of heavy-ion collisions. Various hydrodynamic and nuclear transport models suggest that $v_{1}$ in the mid-rapidity...
Exploring the properties of strongly interacting matter at extreme temperatures and densities is a fundamental goal of relativistic heavy-ion collisions. Short-lived resonances such as $K^{*0}(\bar K^{*0})$ ($\sim 4.16$ fm/c) are considered one of the best candidates to investigate the late-stage hadronic phase produced in heavy-ion collisions. Due to their short lifetimes, the decay daughters...
High-energy heavy-ion collisions provide a unique framework for studying the phase transition of strongly interacting matter. The NA61/SHINE experiment, located in the North Area of CERN's SPS, is a fixed-target facility designed to perform a systematic exploration of the QCD phase diagram. This is achieved through a two-dimensional scan that varies both the beam momentum (from 13A to 150/158A...
Direct photons produced in heavy ion collisions are penetrating probes and as such encode the entire space-time history of the collision, from the initial hard scattering to the final kinetic freeze-out, but their description is a major challenge to theoretical models, particularly to those that concentrate mostly on thermal radiation from the quark-gluon plasma and the hadron gas. ...
This talk presents an overview of recent findings from the ATLAS experiment using heavy-ion collisions. These include measurements of how energetic jets are produced and modified as they travel through the hot, dense medium known as the Quark-Gluon Plasma (QGP), which is created in collisions between atomic nuclei at near light speed. The results also include studies of softer particles...
The Compressed Baryonic Matter (CBM) experiment at FAIR is designed to explore the phase diagram of strongly interacting matter at high net-baryon densities with unprecedented interaction rates of up to 10 MHz. A key technical challenge in this environment is the reconstruction of charged particle trajectories in real time, under extreme track multiplicities and high background levels. Track...
