A5079913152- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Nuclear reactor physics and engineering
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Pediatric Urology and Nephrology Studies
- Muon and positron interactions and applications
- Computational Physics and Python Applications
- Magnetic confinement fusion research
- Advanced Frequency and Time Standards
- Pulsars and Gravitational Waves Research
- Atomic and Molecular Physics
- Statistical Methods and Bayesian Inference
European Organization for Nuclear Research
2012-2025
GSI Helmholtz Centre for Heavy Ion Research
2023-2025
A. Alikhanyan National Laboratory
2017-2024
University of Houston
2023-2024
Technical University of Munich
2023-2024
Joint Institute for Nuclear Research
2024
Kurchatov Institute
2014-2023
National Research Nuclear University MEPhI
2015-2023
Max Planck Institute for Physics
2023
Central China Normal University
2019-2023
Direct photons provide a possibility to test properties of hot matter created in proton–proton (pp), proton–nucleus (p–A) or nucleus–nucleus (A–A) collisions. As they are charged particles’ scatterings and freely escape the region, tool all stages collision: scattering partons incoming nucleons, pre-equilibrium evolution collective expansion quark–gluon Comparing direct photon production pp, p–A A–A collisions, one can check scaling with number binary collisions expected at high transverse...
We present spectra of $\pi^0$, $\eta$ and $\omega$ mesons in pp collisions $\pi^{0}$ Pb-Pb measured with ALICE at LHC energies. The $\pi^0$ are reconstructed via their two-photon decays by two complementary methods, using the electromagnetic calorimeters photon conversion technique; both measurements show perfect agreement. measure nuclear modification factor ($R_{AA}$) production different collision centralities compare lower energy results theoretical predictions.
We review recent ALICE results on direct photon production in pp, p–Pb and Pb–Pb collisions at LHC energies. In light systems, pp p–Pb, no signal of photons low p T < 3-5 GeV/c is observed within uncertainties, while high pT our measurements are consistent with NLO pQCD calculations. central mid-central a thermal contribution 3 - 4 slopes eff = (304 ± 11 stat 40 syst ) MeV (407 61 96 respectively. A collective elliptic flow measured appeared to be close the decay flow.
.
Abstract We review ALICE results on direct photon production in pp, pA and AA collisions compare them to predictions of NLO pQCD calculations, hydrodynamic, transport models. In pp the measured yield is consistent with scaled number binary collisions. Pb-Pb an additional contribution observed at low p T < 4 GeV/ c which can be interpreted as a thermal contribution. The larger than hydrodynamic models, but still within uncertainties. elliptic collective flow photons was central mid-central...
The ALICE experiment is designed to study the properties hot and dense medium, Quark-Gluon Plasma (QGP), produced in ultrarelativistic heavy-ion collisions at LHC. Measuring production of hadrons with large Q 2 transfer these provides possibility explore one most spectacular effects — in-medium parton energy loss. By varying observables among light heavy flavored fully reconstructed jets by changing colliding systems from pp p–Pb Pb–Pb, can transport matter great details. Here an overview...
An overview of experimental methods for measuring direct photon spectra in pp, p–A and A–A collisions is presented. The advantages limitations each method are discussed illustrated by the results various experiments.