A5100625101- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Particle Detector Development and Performance
- Cold Atom Physics and Bose-Einstein Condensates
- Black Holes and Theoretical Physics
- Pulsars and Gravitational Waves Research
- Neutrino Physics Research
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- International Science and Diplomacy
- Atomic and Molecular Physics
- Stellar, planetary, and galactic studies
- High-pressure geophysics and materials
- Radio Wave Propagation Studies
- Computational Physics and Python Applications
- Nuclear reactor physics and engineering
- Precipitation Measurement and Analysis
- Gamma-ray bursts and supernovae
- Nuclear physics research studies
- Medical Imaging Techniques and Applications
- Geophysics and Gravity Measurements
Universidade Federal de Pelotas
2016-2025
Institute of Modern Physics
2021-2025
Chinese Academy of Sciences
2021-2024
University of Münster
2022-2024
Universidade Federal do Rio Grande do Sul
1997-2023
Universidade Federal de São Paulo
2010-2023
Pennsylvania State University
2023
Universidade Federal Fluminense
2022
Universidade do Estado de Santa Catarina
2022
Universidade Federal de Uberlândia
2021
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.
This report is based on a ten-week program Gluons and the quark sea at high-energies, which took place Institute for Nuclear Theory (INT) in Seattle Fall 2010. The principal aim of was to develop sharpen science case an Electron-Ion Collider (EIC), facility that will be able collide electrons positrons with polarized protons light heavy nuclei high energies, offering unprecedented possibilities in-depth studies quantum chromodynamics (QCD). organized around following four major themes: (i)...
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.
The goal of this report is to give a comprehensive overview the rich field forward physics, with special attention topics that can be studied at LHC.The starts presenting selection Monte Carlo simulation tools currently available, chapter 2, then enters phenomenology QCD low, 3, and high, 4, momentum transfer, while unique scattering conditions central exclusive production are analyzed in 5.The last two experimental topics, Cosmic Ray Heavy Ion physics presented 6 7 respectively.Chapter 8...
The goal of this white paper is to give a comprehensive overview the rich field forward physics.We discuss occurrences BFKL re-summation effects in special final states, such as Mueller-Navelet jets, jet-gap-jets, and heavy quarkonium production.It further addresses TMD factorization at low x manifestation semi-hard saturation scale (generalized) PDFs.More theoretical aspects low-x physics, probes quark-gluon plasma, well possibility use photonhadron collisions LHC constrain hadronic...
The impact of Lorentz violating (LV) terms on the exclusive <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>e</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>e</a:mi><a:mo>−</a:mo></a:msup></a:math> production in ultraperipheral heavy-ion collisions at Large Hadron Collider (LHC) is investigated, considering vectorial and axial couplings. Results for differential total cross sections are presented, sensitivity to a purely timelike coupling estimated. Our...
In this work we study the diffractive photoproduction of $J/\ensuremath{\Psi}$ in proton-proton, proton-nucleus, and nucleus-nucleus collisions at Large Hadron Collider energies using color dipole formalism different models for forward dipole-target scattering amplitude. Our goal is to estimate theoretical uncertainty present current predictions literature. results are compared with experimental data higher presented.
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,...
Axionlike particles (ALPs) are promising candidates to comprise all the dark matter in Universe. We investigate ALP couplings photons and electrons via astrophysical measurements through search for very-high-energy gamma rays arising from high-energy cosmic-ray scattering off populating halo of Milky Way. show that gamma-ray signals inverse Primakoff Compton processes, respectively, can be probed by (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML"...
The particle production in photon-photon (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mi>γ</a:mi><a:mi>γ</a:mi></a:mrow></a:math>) interactions present electron-ion collisions is investigated. We calculations for the total cross sections and event rates related to of light mesons <b:math...
An exploratory study of the exclusive toponium production in $pp$, $pPb$ and $PbPb$ collisions at center - mass energies Large Hadron Collider (LHC) Future Circular (FCC) is performed. Assuming that a pseudoscalar $t\bar{t}$ bound state, we consider its by photon gluon induced interactions. Results for total cross sections associated rapidity distributions are presented, observability processes discussed.
The possibility to search for long-lived axion-like particles (ALPs) decaying into photons is investigated in ultraperipheral PbPb collisions at the Large Hadron Collider (LHC). We propose a strategy low-mass ALPs using LHCb and ALICE experiments. ALP identification performed by requiring decay vertex be reconstructed outside region where primary expected, which strongly suppress contribution associated with of light mesons. also use fact that fraction convert electron–positron pairs,...
The exclusive $\Upsilon$ photoproduction in proton-proton and proton - nucleus collisions at LHC energies is investigated using the color dipole formalism considering different models for wave function forward target scattering amplitude. Our goal to update predictions estimate theoretical uncertainty present these predictions. We kinematical ranges probed by ALICE, CMS LHCb Collaborations.
We investigate the production of fully - heavy tetraquark states T4Q in γγ interactions present proton-proton, proton-nucleus and nucleus-nucleus collisions at CERN Large Hadron Collider (LHC). focus on γγ→QQ (Q=J/ψ,ϒ) subprocess, mediated by resonance s channel, predictions for hadronic cross sections considering kinematical ranges probed ALICE LHCb Collaborations. Our results demonstrate that experimental study this process can be used to existence properties states.
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...
In this paper, we investigate the impact of phase conversion speed on properties hybrid stars with sequential sharp QCD transitions. We consider that these possess an inner (outer) core CFL (2SC) quark matter surrounded by hadronic matter. Assuming conversions can be slow or rapid, analyze dynamical stability objects. particular, present our predictions for mass-radius profile and fundamental eigenfrequencies first order Our results demonstrate usual criteria i.e. $\partial M/ \partial P_0...
The elastic production of top quark pairs in $pp$ collisions at low and high luminosity regimes is investigated detail. We extend the study performed Phys. Rev. D102, 074014 (2020) which has demonstrated that sum two semi-exclusive $t\bar{t}$ modes, namely photon-Pomeron Pomeron-Pomeron interactions, can be experimentally measured when system decays semi-leptonically, $t\bar{t}\rightarrow jjbl\nu_l\bar{b}$, both forward protons are tagged a amount pile-up present. In this we focus on...
Abstract The production of fully-heavy tetraquark states in proton–proton ( pp ) and proton–nucleus pA collisions at the center-of-mass energies Large Hadron Collider (LHC) Future Circular (FCC) is investigated considering that these are produced through double parton scattering mechanism. We estimate cross sections for $$T_{4c},$$ <mml:math...
We investigate the behavior of dense and cold (normalized) quantum chromodynamics (QCD) trace anomaly, <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi mathvariant="normal">Δ</a:mi></a:math>, in interior twin neutron stars (obtained from several sets equations state agreement with modern compact-star multimessenger data) satisfying static dynamic stability conditions. scan formed twin-star parameter space order to look for effects caused by presence a strong...
At high energies a quark-gluon plasma is expected to be formed in heavy ion collisions at RHIC and LHC. The theoretical description of these processes directly associated complete knowledge the details medium effects nuclear gluon distribution. In this paper we analyze possibility constraint behavior distribution considering peripheral collisions. We reanalyze photoproduction quarks for deduction in-medium using three current parameterizations parton Moreover, show that elastic vector mesons...
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...