A5080576661- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Stochastic processes and statistical mechanics
- Cosmology and Gravitation Theories
- Nuclear physics research studies
- Cold Atom Physics and Bose-Einstein Condensates
- Theoretical and Computational Physics
- X-ray Spectroscopy and Fluorescence Analysis
- Black Holes and Theoretical Physics
- Scientific Research and Discoveries
- Advanced Physical and Chemical Molecular Interactions
Goethe University Frankfurt
2023-2024
GSI Helmholtz Centre for Heavy Ion Research
2020-2022
University of Catania
2016-2020
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud
2016-2020
Centro Siciliano di Fisica Nucleare e di Struttura della Materia
2019-2020
In a coalescence plus fragmentation approach we calculate the heavy baryon/meson ratio and $p_T$ spectra of charmed hadrons $D^{0}$, $D_{s}$ $\Lambda_{c}^{+}$ in wide range transverse momentum from low up to about 10 GeV discuss their ratios RHIC LHC energies without any change parameters. We have included contribution decays hadron resonances also one due quarks which do not undergo process. The process is tuned all charm hadronizing $p_T\rightarrow 0$ limit at finite undergoing are...
Several transport models have been employed in recent years to analyze heavy-flavor meson spectra high-energy heavy-ion collisions. Heavy-quark coefficients extracted from these with their default parameters vary, however, by up a factor of 5 at high momenta. To investigate the origin this large theoretical uncertainty, systematic comparison heavy-quark is carried out between various models. Within common scheme devised for nuclear modification charm quarks brick medium quark-gluon plasma,...
Cluster and hypernuclei production in heavy-ion collisions is presently under active experimental theoretical investigation. Since clusters are weekly bound objects, their very sensitive to the dynamical evolution of system its interactions. The description cluster formation related $n$-body problem. Here we present novel transport approach PHQMD (parton-hadron-quantum-molecular dynamics) which designed provide a microscopic nuclear hypernucleus as well general particle reactions at...
We study cluster and hypernuclei production in heavy-ion collisions at relativistic energies employing the parton-hadron-quantum-molecular-dynamics (PHQMD) approach, a microscopic $n$-body transport model based on QMD propagation of baryonic degrees freedom with density dependent two-body potential interactions. All other ingredients PHQMD, including collision integral treatment quark-gluon plasma (QGP) phase, are adopted from parton-hadron-string-dynamics (PHSD) approach. In PHQMD formation...
Heavy flavor observables provide valuable information on the properties of hot and dense Quark-Gluon Plasma (QGP) created in ultra-relativistic nucleus-nucleus collisions. Various microscopic models have successfully described many associated with its formation. Their transport coefficients differ, however, due to different assumptions about underlying interaction heavy quarks plasma constituents, initial geometries formation times, hadronization processes a time evolution QGP. In this study...
In the pre-thermal equilibrium stage of relativistic heavy-ion collisions, a strong quasi-classical transverse gluon field emerges at about τ0≃0.1fm/c and evolves together with their longitudinal counterparts according to classical Yang-Mills (CYM) equations. Recently it has been shown that these fields induce diffusion charm quarks in momentum space resulting tilt spectrum without significant drag. We find nucleus-nucleus collisions LHC such novel dynamics leads an initial enhancement...
The understanding of the mechanisms for production weakly bound clusters, such as a deuteron $d$, in heavy-ion reactions at mid-rapidity is presently one challenging problems which also known "ice fire" puzzle. In this study we investigate dynamical formation deuterons within Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) microscopic transport approach and advance two to describe collisions from SIS RHIC energies: kinetic by hadronic potential attractive between nucleons. Differently other...
The formation of weakly bound clusters in the hot and dense environment at midrapidity is one surprising phenomena observed experimentally heavy-ion collisions from a low center mass energy few GeV up to an ultrarelativistic several TeV. Three approaches have been advanced describe cluster formation: coalescence kinetic freeze-out, during entire collision by potential interaction between nucleons, deuteron production hadronic reactions. Based on parton-hadron-quantum molecular dynamics...
We investigate the influence of equation-of-state (EoS) strongly interacting matter created in heavy-ion collisions on light cluster and hypernuclei production within Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) microscopic transport approach. In earlier PHQMD calculations, nucleon interactions were modeled using a static, density-dependent potential corresponding to soft hard equation-of-state. this study, we incorporate momentum-dependent for baryon-baryon interaction, derived from...
We investigate light cluster and anti-cluster production in heavy-ion collisions from SIS to RHIC energies within the Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) microscopic transport approach which propagates (anti-)baryons using n-body QMD dynamics. In PHQMD clusters are formed dynamically by potential interactions between baryons - recognized Minimum Spanning Tree (MST) algorithm as well kinetic reactions case of deuterons. present novel results for different observables such...
The heavy quarks (HQs) are a unique probe of the hot QCD matter properties and their dynamics coupled to locally thermalized expanding quark gluon plasma. We present here novel study event by correlations between light flavor flow harmonics at LHC energy within transport approach. Interaction have been taken into account explore impact different temperature dependence for coefficients Ds Γ. Our indicates that vnheavy−vnlight correlation relative fluctuations anisotropic flows, σvn/〈vn〉,...
We compare the microscopic transport models UrQMD, PHSD, PHQMD, and SMASH to make predictions for upcoming Ag+Ag data at $E_\mathrm{lab}=1.58$~$A$GeV ($\sqrt{s_\mathrm{NN}}=2.55$~GeV) by HADES collaboration. study multiplicities, spectra effective source temperatures of protons, $π^{\pm,0}$, $K^\pm$, $η$, $Λ+Σ^0$ $Ξ^-$ within these models. Despite variations in detailed implementation dynamics different models, employed approaches all show consistent multiplicities bulk investigated hadrons....
We study the production of clusters and hypernuclei at midrapidity employing Parton-Hadron- Quantum-Molecular-Dynamics (PHQMD) approach, a microscopic n-body transport model based on QMD propagation baryonic degrees freedom with density dependent 2-body potential interactions. In PHQMD cluster formation occurs dynamically, caused by The are recognized Minimum Spanning Tree (MST) algorithm. present results for in comparison available experimental data relativistic energies. allows to time...
The formation of weakly bound clusters and hypernuclei in the hot dense environment at midrapidity is a surprising phenomenon observed experimentally heavy-ion collisions, spanning from low SIS to ultra-relativistic LHC energies. This occurrence, often referred as ’ice fire’ puzzle, has prompted exploration three distinct approaches elucidate cluster formation: potential mechanism, involving throughout entire collision via interactions between nucleons; kinetic entailing deuteron production...
In Ultra-relativistic Heavy-Ion Collisions (HICs) very strong initial electro-magnetic (E.M.) fields are created: the order of magnitude magnetic field is about $10^{19} \, Gauss$, most intense in Universe, even larger than that a magnetar. These rapidly decrease time, inducing drift particles reaction plane. The resulting flow odd under charge exchange and this allows to distinguish it from large vorticity bulk matter due angular momentum conservation. Conjointly charm quarks, thanks their...
Abstract We review the properties of strongly interacting quark‐gluon plasma (QGP) at finite temperature and baryon chemical potential as created in heavy‐ion collisions ultrarelativistic energies. The description (non‐perturbative) QGP equilibrium is based on effective propagators couplings from Dynamical QuasiParticle Model (DQPM) that matched to reproduce equation‐of‐state partonic system above deconfinement lattice QCD. Based a microscopic transport collisions, we discuss which...
We investigate the influence of equation-of-state (EoS) nuclear matter on collective observables, directed ($v_1$) and elliptic flow ($v_2$) nucleons light clusters in heavy-ion collisions at GeV beam energies employing Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) microscopic transport approach. Here are formed dynamically during entire collision by potential interaction between nucleons, including additionally deuteron production hadronic kinetic reactions. employ three different EoS -...
We investigate light cluster and anti-cluster production in heavy-ion collisions from SIS to RHIC energies within the Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) microscopic transport approach which propagates (anti-)baryons using n-body QMD dynamics. In PHQMD clusters are formed dynamically by potential interactions between baryons - recognized Minimum Spanning Tree (MST) algorithm as well kinetic reactions case of deuterons. present novel results for different observables such...
We study the propagation of heavy quarks (HQs) in quark-gluon plasma (QGP) by means a relativistic Boltzmann transport (RBT) approach. The non-perturbative interaction between and light is described quasi-particle approach able to describe simultaneously experimental data for nuclear suppression factor $R_{\rm AA}$ elliptic flow $v_2(p_T)$ D mesons from RHIC LHC energies. In same framework we predict B meson modification at LHC. Finally, discuss relevance initial state fluctuations that...
We discuss the propagation of heavy quarks (charm and bottom) through QGP by means a relativistic Boltzmann transport approach including both collisional radiative energy loss mechanisms. In particular we investigate impact induced gluon radiation dynamical QCD medium implementing in our model formula for emitted spectrum calculated higher-twist scheme. notice that region high transverse momentum ($p_T > 10$ GeV) processes play an essential role giving dominant contribution to generation...
We studied isotropization and thermalization of the quark-gluon plasma produced by decaying color-electric flux tubes created at very early stages relativistic heavy ion collisions. coupled dynamical evolution initial field, which decays to a Schwinger mechanism, dynamics many particles system decay. The such is described transport theory fixed values viscosity over entropy density ratio. Within single self-consistent calculation scheme we computed quantities serve as indicators...