A5013912369- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Cosmology and Gravitation Theories
- Superconducting Materials and Applications
- Pulsars and Gravitational Waves Research
- Geophysics and Gravity Measurements
- Dark Matter and Cosmic Phenomena
- Statistical Mechanics and Entropy
- Black Holes and Theoretical Physics
- Gamma-ray bursts and supernovae
- Particle Accelerators and Free-Electron Lasers
- Computational Physics and Python Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Particle Detector Development and Performance
- Physics of Superconductivity and Magnetism
- History and Developments in Astronomy
- Nuclear reactor physics and engineering
- High-pressure geophysics and materials
- Quantum, superfluid, helium dynamics
- Magnetic confinement fusion research
- Complex Systems and Time Series Analysis
- Theoretical and Computational Physics
- Astrophysics and Cosmic Phenomena
Universidade Federal do Rio Grande do Sul
2016-2025
University of Rio Grande and Rio Grande Community College
2024-2025
Universidade Estadual do Centro-Oeste
2023-2024
Niels Brock
2019
Universidade de São Paulo
2018
Istituto Nazionale di Fisica Nucleare
2015
University of Calabria
2015
Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Cosenza
2015
National Academy of Sciences of Ukraine
2015
Deutsches Elektronen-Synchrotron DESY
2015
This writeup is a compilation of the predictions for forthcoming Heavy Ion Program at Large Hadron Collider, as presented CERN Theory Institute 'Heavy Collisions LHC - Last Call Predictions', held from May 14th to June 10th 2007.
In this letter we update our predictions for the photoproduction of vector mesons in coherent $pp$ and $AA$ collisions at RHIC LHC energies using color dipole approach Color Glass Condensate (CGC) formalism. particular, present first run half energy rapidity dependence ratio between $J/\Psi$ $\rho$ cross sections energies.
In this paper we present a comprehensive analysis of exclusive vector-meson photoproduction in $pp$, $p\mathrm{Pb}$ and PbPb collisions at Run 2 LHC energies using the color dipole formalism. The rapidity distributions total cross sections for $\ensuremath{\rho}$, $\ensuremath{\phi}$, $J/\mathrm{\ensuremath{\Psi}}$, $\mathrm{\ensuremath{\Psi}}(2S)$ $\mathrm{\ensuremath{\Upsilon}}$ production are estimated considering more recent phenomenological models dipole-proton scattering amplitude,...
We outline the physics opportunities provided by Electron Ion Collider (EIC). These include study of parton structure nucleon and nuclei, onset gluon saturation, production jets heavy flavor, hadron spectroscopy tests fundamental symmetries. review present status future challenges in EIC theory that have to be addressed order realize this ambitious impactful program, including how engage a diverse inclusive workforce. In address these many-fold challenges, we propose coordinated effort...
This study presents new insights into gluon transverse momentum distributions through nonextensive statistical mechanics, addressing their implications for QCD phenomenology. The saturation physics and scaling laws present in high energy collision data are investigated as a consequence of distribution modification at density regime. analysis explores how these modifications influence observables across different systems, such proton-proton, proton-nucleus, relativistic heavy-ion collisions....
In this work, we confront the geometrical scaling properties of inclusive deep inelastic scattering cross section (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>e</a:mi><a:mo>+</a:mo><a:mi>p</a:mi><a:mo stretchy="false">→</a:mo><a:mi>e</a:mi><a:mo>+</a:mo><a:mi>X</a:mi></a:math>) with entropy obtained from event multiplicity. We show that these two quantities are equivalent in kinematic range probed by H1 Collaboration data. propose associated partonic...
ABSTRACT The color dipole formalism in the transverse momentum framework together with unintegrated gluon distributions is considered to obtain differential cross sections collisions. theoretical predictions for B ± ‐meson production assume center‐of‐mass energy of Large Hadron Collider and rapidities available at LHCb experiment. results are compared corresponding measurements terms meson momentum.
This study presents new insights into gluon transverse momentum distributions through non-extensive statistical mechanics, addressing their implications for QCD phenomenology. The saturation physics and scaling laws present in high-energy collision data are investigated as a consequence of distribution modification high-density regime. analysis explores how these modifications influence observables across different systems, such proton–proton, proton–nucleus, relativistic heavy-ion...
O ambiente escolar pode ser diversificado considerando sua realidade cultural. Neste contexto está a educação do campo, vista como uma modalidade de ensino que procura contemplar as características local, bem os saberes ali presentes em espaços denominados rurais. Esta pesquisa teve finalidade compreender organização escola campo com turmas multisseriadas o propósito indicar adequações pedagógicas foram necessárias para desenvolvimento um processo e aprendizagem qualidade. Ressalto é...
In this work we investigate the photoproduction of radially excited vector mesons off nuclei in heavy ion relativistic collisions. particular, analyze exclusive psi(2S) nuclei, evaluating coherent and incoherent contributions to that process. The theoretical framework used present analysis is light-cone dipole formalism predictions are done for PbPb collisions at CERN-LHC energy 2.76 TeV. uncertainties analyzed comparison also recent ALICE Collaboration data psi(1S) state photoproduction.
In this work we investigate the exclusive photoproduction of $J/\ensuremath{\psi}$ and radially excited $\ensuremath{\psi}(2S)$ state off nucleons in proton-proton collisions. The theoretical framework considered analysis is light-cone dipole formalism predictions are done for collisions at CERN-LHC energy 7 TeV. uncertainties investigated a comparison made to recent LHCb Collaboration data charmonium production.
In this work we analyze the theoretical uncertainties on predictions for photoproduction of light vector mesons in coherent $pp$, $pA$, and $AA$ collisions at CERN Large Hadron Collider energies using color dipole approach. particular, present our rapidity distribution ${\ensuremath{\rho}}^{0}$ $\ensuremath{\phi}$ perform an analysis associated to choice meson wave function phenomenological models cross section. Comparison is done with recent ALICE production 2.76 TeV PbPb collisions.
We investigate the multiplicity dependence of transverse momentum <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>p</a:mi><a:mi>T</a:mi></a:msub></a:math> spectra hadrons produced in high-energy collisions. propose that partonic distribution be parametrized by its nonextensive entropy and parton saturation scale <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msub><c:mi>Q</c:mi><c:mi>s</c:mi></c:msub><c:mo...
Ultraperipheral heavy ion collisions (UPCs) are an important alternative for studying QCD dynamics until the next generation of e+e−/ep/eA colliders becomes a reality. Due to coherent action all protons in nucleus, electromagnetic field is very strong and resulting flux equivalent photons large, which allows us study two-photon as well photonuclear interactions at high energies. In this paper we present brief review vector meson production UPCs energies using colour dipole approach describe...
The photoproduction of quarkonium in coherent hadron-hadron ($pp/pA/AA$) interactions for LHC energies is an important tool to investigate the QCD dynamics at high energies. In this paper we estimate integrated cross section and rapidity distribution $J/\ensuremath{\Psi}$ $\ensuremath{\Upsilon}$ production using color glass condensate (CGC) formalism. We predict large rates, implying that experimental identification could be feasible LHC.
We investigate the theoretical uncertainty on predictions for photoproduction of J/psi and Upsilon states in proton-nucleus nucleus-nucleus collisions at LHC within color dipole formalism. Predictions rapidity distributions are presented dependence meson wavefunction, heavy quark mass as well models cross section analyzed. compare directly results to recent data from ALICE collaboration production pPb a centre-of-mass energy per nucleon pair 5.02 TeV PbPb 2.76 TeV. also performed $\Upsilon$...
The presence of geometric scaling within the ${p}_{T}$ spectra produced hadrons at high energy $pp$ collisions using small-$x$ ${k}_{T}$-factorization is investigated. It proposed a phenomenological parameterization for unintegrated gluon distribution in range that reproduces features differential cross section both saturated and dilute perturbative QCD regimes. As saturation scale acts as an effective regulator infrared region, extension model to quantities usually associated soft physics...
We show that the cross section for inclusive charm production exhibits geometric scaling in a large range of photon virtualities. In DESY $ep$ collider HERA kinematic domain saturation momentum ${Q}_{\mathrm{s}\mathrm{a}\mathrm{t}}^{2}(x)$ stays below hard scale ${\ensuremath{\mu}}_{c}^{2}=4{m}_{c}^{2}$, implying probing mostly color transparency regime and unitarization effects being almost negligible. derive our results considering two models which are able to describe data proton...
The high parton density regime of the quantum chromodynamics (QCD), where physics saturation is expected to be dominant, briefly discussed. Some phenomenological aspects are described, mainly focusing on possible signatures nonlinear QCD dynamics in heavy quark production electron–proton/nucleus collisions. Implications these effects ultraperipheral heavy-ion collisions also presented.
In this letter we study the photoproduction of heavy quarks and vector mesons in coherent proton-nucleus (pA) interactions for RHIC LHC energies analyze if these processes can be used to determine QCD dynamics at high energies. The integrated cross section rapidity distribution are estimated using Color Glass Condensate (CGC) formalism. A comparison with linear predictions is also presented. Our results indicate that nonlinear proven those reactions, which well suited studing saturation effects.
In this letter we study the diffractive photoproduction of heavy quarks in hadronic (pp/pA/AA) interactions for Tevatron and LHC energies. The integrated cross section rapidity distribution process h_1 h_2 --> QQBAR (h_i = p,A Q c,b) are estimated using Color Glass Condensate (CGC) formalism. Our results indicate that production channel has larger sections than competing reactions double coherent AA initiated by two-photon collisions.
In this work we analyse the entanglement entropy in deep inelastic scattering off protons and nuclei. It is computed based on formalism where partonic state at small-x maximally entangled with proton being constituted by large number of microstates occuring equal probabilities. We consider analytical expressions for gluons, N_{gluon}, obtained from gluon saturation models dipole-target amplitudes within QCD color dipole picture. particular, nuclear per nucleon studied. also study underlying...
The production of D-mesons in high-energy pp collisions at the LHC kinematic regime is analyzed with color dipole approach momentum representation. We present predictions for D-meson differential cross section terms transverse and rapidity distributions taking into account nonlinear behavior QCD dynamics. Comparison between our results corresponding experimental measurements reported by ALICE LHCb Collaborations different bins performed. show that high energy limit can be properly addressed...