A5083188024- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Nuclear reactor physics and engineering
- Nuclear physics research studies
- Particle Detector Development and Performance
- Nuclear Physics and Applications
- Stochastic processes and statistical mechanics
- Dark Matter and Cosmic Phenomena
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Statistical Methods and Bayesian Inference
- X-ray Spectroscopy and Fluorescence Analysis
- Particle Accelerators and Free-Electron Lasers
- Pulsars and Gravitational Waves Research
- Cosmology and Gravitation Theories
- Superconducting Materials and Applications
- Cold Fusion and Nuclear Reactions
- Cold Atom Physics and Bose-Einstein Condensates
- Radiation Detection and Scintillator Technologies
- Markov Chains and Monte Carlo Methods
- Pediatric Urology and Nephrology Studies
- Fusion materials and technologies
- Particle accelerators and beam dynamics
- Electron and X-Ray Spectroscopy Techniques
Hospital Universitário da Universidade de São Paulo
2016-2025
A. Alikhanyan National Laboratory
2015-2024
Universidade de São Paulo
2015-2024
Central China Normal University
2018-2024
Creighton University
2004-2024
Ball State University
2022-2024
Frankfurt Institute for Advanced Studies
2022-2024
Argonne National Laboratory
2022-2024
Huzhou University
2024
Guangxi Normal University
2024
Open and hidden heavy-flavor physics in high-energy nuclear collisions are entering a new exciting stage towards reaching clearer understanding of the experimental results with possibility to link them directly advancement lattice Quantum Chromo-Dynamics (QCD). Recent from experiments theoretical developments regarding open dynamics have been debated at Lorentz Workshop Tomography Quark-Gluon Plasma Heavy Quarks, which was held October 2016 Leiden, The Netherlands. In this contribution, we...
The interaction of $\rm{K}^{-}$ with protons is characterised by the presence several coupled channels, systems like ${\rm \overline{K}^0}$n and $\pi\Sigma$ a similar mass same quantum numbers as $\rm{K}^{-}$p state. strengths these couplings to system are crucial importance for understanding nature $\Lambda(1405)$ resonance attractive strong interaction. In this article, we present measurements correlation functions in relative momentum space obtained pp collisions at $\sqrt{s}~=~13$ TeV,...
Excitation functions for sub- and near-barrier total (complete + incomplete) fusion cross sections are presented the 6,7Li+59Co reactions. Evaporation residues were identified by their characteristic γ rays corresponding yields measured with both IReS Garel array at Vivitron facility São Paulo Ge 8UD Pelletron tandem using standard γ-ray techniques. The data extend to medium-mass systems previous works exploring coupling effects (hindrance versus enhancement) in reactions of lighter heavier...
Complete fusion of light radioactive nuclei is predicted to be hindered at near-barrier energies. This feature investigated in the case least bound stable nuclei. Evaporation residues resulting from ${}^{6,7}\mathrm{Li}{+}^{9}\mathrm{Be}$ and ${}^{6,7}\mathrm{Li}{+}^{12}\mathrm{C}$ reactions have been measured order study common features involving weakly The experimental excitation functions revealed that cross section significantly smaller than total reaction also expected available...
In this paper heavy quark energy loss models are embedded in full event-by-event viscous hydrodynamic simulations to investigate the nuclear suppression factor and azimuthal anisotropy of ${D}^{0}$ mesons $\text{PbPb}$ collisions at $\sqrt{{s}_{NN}}=5.02\phantom{\rule{4pt}{0ex}}\mathrm{TeV}$ ${p}_{\text{T}}$ range $8--40\phantom{\rule{0.16em}{0ex}}\mathrm{GeV}$. our model calculations, ${R}_{AA}$ is consistent with experimental data from CMS experiment. We present first calculations flavor...
Heavy flavor probes provide important information about the in-medium properties of quark-gluon plasma produced in heavy-ion collisions. In this work, we investigate effects $2\text{D}+1$ event-by-event fluctuating hydrodynamic backgrounds on nuclear suppression factor and momentum anisotropies heavy mesons nonphotonic electrons. Using state-of-the-art $D$ $B$ modular simulation code (called ``DAB-MOD''), perform a systematic comparison different transport equations same background,...
Este artigo apresenta uma abordagem didática para introduzir métodos de aprendizado máquina não supervisionado utilizando um experimento prático medição densidades sólidos plásticos em laboratório física. No experimento, diferentes tipos são analisados quanto à sua densidade, procedimento experimental simples medida massa e volume. Os dados obtidos então processados com algoritmos clusterização, como K-means, DBSCAN mistura gaussiana, classificar os materiais base suas propriedades. A...
The elastic scattering for the $^{6,7}\mathrm{Li}+^{59}\mathrm{Co}$ systems was investigated in bombarding energy range $12\phantom{\rule{0.3em}{0ex}}\text{MeV}\ensuremath{\leqslant}{E}_{\mathrm{lab}}\ensuremath{\leqslant}30\phantom{\rule{0.3em}{0ex}}\text{MeV}$ by means of an analysis using S\~ao Paulo potential, through which behavior real and imaginary parts as function established. experimental results suggest that overall there is evidence usual threshold anomaly both systems, although...
Experimental measurements indicate no suppression (e.g. $R_\text{pPb} \sim 1$) but a surprisingly large D meson $v_2$ was measured in pPb collisions. In order to understand these results we use Trento+v-USPhydro+DAB-MOD make predictions and propose system size scan at the LHC involving $^{208}$PbPb, $^{129}$XeXe, $^{40}$ArAr, $^{16}$OO We find that nuclear modification factor approaches unity as is decreased, nonetheless, 0-10% most central collisions $v_2\{2\}$ roughly equivalent regardless...
The elderly population is growing rapidly in the world and falls are becoming a big problem for society. Currently, clinical assessments of gait posture include functional evaluations, objective, subjective scales. They considered gold standard to indicate optimal mobility performance individually, but their sensitivity specificity not good enough predict who at higher risk falling. An innovative approach fall prediction machine learning. Machine learning computer-science area that uses...
Energy-integrated reaction cross sections have been measured at energies ranging from 38 to 80 MeV/nucleon for various exotic neutron-rich isotopes of Al, Si, P, S, Cl, Ar, K, Ca, Sc, and Ti stopping in Si. An experimental technique is employed where Si detectors are used both particle identification serve as the target material. The reduced strong absorption radii ${r}_{0}^{2}$ deduced compared with other results. radius dependence on neutron number was studied a trend increasing excess...
Combining event-by-event hydrodynamics with heavy quark energy loss we compute correlations between the and soft sectors for elliptic triangular flow harmonics v2 v3 of D0 mesons in PbPb collisions at 2.76 TeV 5.02 TeV. Our results indicate that is strongly influenced by fragmentation temperature it builds up later than during evolution system.
ALICE (A Large Ion Collider Experiment) is a detector dedicated to the studies with heavy ion collisions exploring physics of strongly interacting nuclear matter and quark-gluon plasma at CERN LHC (Large Hadron Collider). After second long shutdown LHC, Experiment will be upgraded make high precision measurements rare probes low pT, which cannot selected trigger, therefore require very large sample events recorded on tape. The online computing system completely redesigned address major...
Reaction cross sections have been measured at energies ranging from 50 to 70 MeV/nucleon for a variety of exotic neutron rich isotopes Ar, K, Ca, and Sc. A method where Si detectors are used also as targets has utilized the measurements. The strong absorption radii ${r}_{0}^{2}$ determined compared results Glauber-type calculations which density distributions extracted relativistic mean field theory. isospin dependence was investigated trend similar one lighter nuclei observed. possible...
The study of heavy-flavour production in relativistic heavy-ion collisions is an extreme experimental challenge but provides important information on the properties quark–gluon plasma (QGP) created Au+Au at RHIC. Heavy quarks are believed to be produced initial stages collision, and essential for understanding parton energy loss dense medium such environment. Moreover, heavy can help investigate fundamental QCD elementary p+p collisions. In this work, we review recent results their...
Difficulties in cross-section measurements at very low energies, when charged particles are involved, led to the development of some indirect methods. The Trojan horse method (THM) allows us bypass Coulomb effects and has been successfully applied several reactions astrophysical interest. A brief review THM applications is reported together with most recent results.
We present preliminary measurements of electron and positron spectra in d+Au p+p collisions at for 1.5 < pT 7.0 GeV/c. These were carried out using the STAR time projection chamber (TPC) barrel electromagnetic calorimeter (EMC). Overall hadron rejection factors range 105 have been achieved. In this work, we describe measurement technique used to discriminate electrons from hadrons compare results single with Pythia-based pQCD calculations heavy-quark semi-leptonic decays.