A5060496292- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Nuclear reactor physics and engineering
- Cosmology and Gravitation Theories
- Superconducting Materials and Applications
- Geomagnetism and Paleomagnetism Studies
- Cold Atom Physics and Bose-Einstein Condensates
- Dark Matter and Cosmic Phenomena
- Magnetic confinement fusion research
- Theoretical and Computational Physics
- Statistical Methods and Bayesian Inference
- Computational Physics and Python Applications
- Photonic and Optical Devices
- Advanced Mathematical Physics Problems
- Radiation Detection and Scintillator Technologies
- Geophysics and Gravity Measurements
- Nuclear physics research studies
- Advanced Thermodynamics and Statistical Mechanics
- Climate variability and models
- Pulsars and Gravitational Waves Research
- Metallurgical Processes and Thermodynamics
- Quantum, superfluid, helium dynamics
- Photorefractive and Nonlinear Optics
Czech Technical University in Prague
2016-2025
Institute of Experimental Physics of the Slovak Academy of Sciences
2020
Lund University
2020
Universidade Federal de Santa Catarina
2020
Czech Academy of Sciences, Nuclear Physics Institute
2020
Federico Santa María Technical University
2019-2020
University of Kansas
2017-2019
Eötvös Loránd University
2019
Pázmány Péter Catholic University
2019
Bogolyubov Institute for Theoretical Physics
2019
The Large Hadron electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) energy and intensity frontier particle physics. Exploiting recovery technology, it collides a novel, intense beam with proton or ion from High Luminosity--Large (HL-LHC). accelerator interaction region are for concurrent electron-proton proton-proton operation. This report represents an update Conceptual Design Report (CDR) LHeC, published in 2012. It comprises new results on parton...
In a previous publication, we have presented model for the photoproduction of $J/\ensuremath{\psi}$ vector mesons off protons, where proton structure in impact-parameter plane is described by an energy-dependent hot-spot profile. Here extend this to study photonuclear production coherent and incoherent interactions heavy nuclei. We two methods nuclear case: using standard Glauber-Gribov formalism geometric scaling obtain saturation scale. find that cross section changes sizably with...
We have developed a model in which the quantum fluctuations of proton structure are characterised by hot spots, whose number grows with decreasing Bjorken-x. Our reproduces F2(x,Q2) data from HERA at relevant scale, as well exclusive and dissociative J/ψ photoproduction H1 ALICE. predicts that for Wγp≈500GeV, cross section reaches maximum then decreases steeply energy, is qualitatively good agreement to recent observation background sample measured ALICE energy increases. prediction provides...
In this work, we revise the conventional description of $$J/\psi (1S)$$ , $$\Upsilon $$\psi '(2S)$$ and elastic photo- electroproduction off a nucleon target within color dipole picture carefully study various sources theoretical uncertainties in calculations corresponding cross sections. For purpose, test predictions using bulk available section parametrisations obtained from deep inelastic scattering data at HERA. Specifically, provide detailed analysis energy hard-scale dependencies...
The coherent photonuclear production of a $\mathrm{J/}\psi$ vector meson at the LHC has been computed using two different sets solutions impact-parameter dependent Balitsky-Kovchegov equation. nuclear dipole scattering amplitudes are obtained either from ($i$) for this process off proton targets coupled with Glauber-Gribov prescription, or ($ii$) an initial condition representing nucleus. These approaches predict cross sections, which compared existing data ultra-peripheral collisions LHC....
We study the photoproduction of vector mesons off proton and nuclear targets. work within colour dipole model in an approach that includes subnucleon degrees freedom, so-called hot spots, whose positions impact-parameter plane change event-by-event. The key feature our is number spots depends on energy photon--target interaction. Predictions are presented for exclusive dissociative production $ρ^{0}$, $\mathrm{J/}ψ$, $Υ(1S)$ protons, as well coherent incoherent $ρ^{0}$ targets, where Xe, Au,...
We solved the impact-parameter dependent Balitsky-Kovchegov equation with recently proposed collinearly improved kernel. find that solutions do not present Coulomb tails have affected previous studies. also show once choosing an adequate initial condition it is possible to obtain a reasonable description of HERA data on structure function proton, as well cross section for exclusive production $\mathrm{J}/\ensuremath{\psi}$ vector meson off proton targets. As further application solutions, we...
The solution to the impact-parameter dependent Balitsky-Kovchegov equation with collinearly improved kernel is studied in detail. does not present phenomenon of Coulomb tails at large impact parameters that have affected previous studies. origin this behavior explored numerically. It found be linked fact suppresses daughter dipoles. Solutions based on a physics motivated form initial condition are used compute predictions for structure functions proton and exclusive photoproduction...
The ongoing Run 3 at the Large Hadron Collider (LHC) is substantially increasing luminosity delivered to experiments during 1 and 2. advent of high-luminosity upgrade LHC (Run 4 6), as well improvements all detectors, will allow for collection an unprecedented amount data in next decade. This opens possibility performing measurements which have been limited by smallness available samples. case multi-differential studies $\Jpsi$, $\Upsilon$ excited states, exclusive diffractive photon-induced...
The ongoing Run 3 at the Large Hadron Collider (LHC) is substantially increasing luminosity delivered to experiments during 1 and 2. advent of high-luminosity upgrade LHC (Run 4 6), as well improvements all detectors, will allow for collection an unprecedented amount data in next decade. This opens possibility performing measurements which have been limited by smallness available samples. case multidifferential studies <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"...
In this proceedings a solution of the target-rapidity Balitsky-Kovchegov (BK) equation is presented considering complete impact-parameter dependence, including orientation dipole with respect to vector. The formulation BK introduces non-locality in rapidity. Three different prescriptions are considered take into account rapidities preceding initial condition. solutions used compute structure functions proton and diffractive photo- electro-production $J/\psi$ off protons. predictions agree...
We predict that the onset of gluon saturation can be uniquely identified using incoherent J/ψ production in Pb–Pb collisions at currently accessible energies LHC. The diffractive photo-production a vector meson off hadron provides information on partonic structure hadron. Within Good-Walker approach it specifically measures variance over possible target configurations hadronic colour field. For this process then, sets when cross section reaches maximum, as function centre-of-mass energy...
We present predictions for the exclusive and dissociative production of vector mesons off protons in an electron-ion collider. The computation is based on energy-dependent hot spot model that was shown to successfully describe available photoproduction data. find also describes correctly all electroproduction In addition, we cross section as a function center-of-mass energy photon-proton system has maximum, whose position depends virtuality photon mass meson. use these maxima define...
In this work we present for the first time comprehensive study of Melosh spin rotation effects in diffractive electroproduction S-wave heavy quarkonia off a nucleon target. Such has been performed within color dipole approach using, as an example and reference point, two popular parametrizations cross section potentials describing interaction between Q bar{Q} entering Schroedinger equation based formalism determination wave functions. We find strong onset 1S charmonium photoproduction which...
Abstract The impact of nonlinear effects in the diffractive observables that will be measured future electron-ion collisions is investigated. We present, for first time, predictions structure function and reduced cross sections derived using solution to Balitsky–Kovchegov equation with collinearly-improved kernel including impact-parameter dependence. demonstrate contribution events enhanced nuclear study ratio between proton useful discriminate among different models dipole-target...
In this work we present dipole scattering amplitudes, including the dependence on impact-parameter, for a variety of nuclear targets interest electron-ion colliders (EICs) being currently designed. These amplitudes are obtained by numerically solving Balitsky-Kovchegov equation with collinearly improved kernel. Two different cases studied: initial conditions representing nucleus under consideration and solutions based an condition proton complemented Glauber-Gribov prescription to obtain...
Abstract The impact of nonlinear effects in the deeply virtual Compton scattering (DVCS) process that will be measured future electron-hadron collisions is investigated. We present, for first time, predictions derived using solution to Balitsky–Kovchegov equation with collinearly-improved kernel and including impact-parameter dependence. estimate total cross section t -distribution DVCS ep eA demonstrate $$d\sigma /dt$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow>...
We use the running coupling Balitsky-Kovchegov (rcBK) equation to study rapidity dependence of saturation in inclusive HERA data and we discuss behaviour its numerical solution. The rcBK has been solved using Runge-Kutta methods. influence parameters implicit evolution studied. They include, among others, order evolution, size different grids step evolution. Some suggestions on minimum value these are put forward.
Solutions of the target-rapidity Balitsky-Kovchegov (BK) equation are studied considering, for first time, complete impact-parameter dependence, including orientation dipole with respect to vector. In our previous work [1] it has been demonstrated that spurious Coulomb tails could be tamed using collinearly-improved kernel and an appropriate initial condition in projectile-rapidity BK equation. Introducing a different interpretation evolution variable, formulation brings non-locality...
In this proceedings a solution of the target-rapidity Balitsky-Kovchegov (BK) equation is presented considering complete impact-parameter dependence, including orientation dipole with respect to vector. The formulation BK introduces non-locality in rapidity. Three different prescriptions are considered take into account rapidities preceding initial condition. solutions used compute structure functions proton and diffractive photo- electro-production J/{\psi} off protons. predictions agree...
Dark photons serve as a portal to connect the dark and standard model sectors. Here, we propose photon-induced exclusive diffractive processes new tool study production of in current future colliders. These join strength strong force, yielding large cross sections, with cleanliness photoproduction, providing clean experimental environment. Although measurement would be extremely difficult, identified currently unexplored region around photon masses 1 GeV/$c^2$ coupling suppression...
A stable numerical solution of the impact-parameter-dependent next-to-leading order Balitsky-Kovchegov equation is presented for first time. The rapidity evolution dipole amplitude discussed in detail. Dipole properties, such as speed or anomalous dimension behaviour, are studied a function impact parameter and size compared to solutions leading-order with collinearly improved kernel. also strongly suppresses Coulomb tails leading solutions.
A solution of the target-rapidity Balitsky-Kovchegov (BK) equation is presented considering, for first time, complete impact-parameter dependence, i.e. including orientation dipole with respect to vector. To address non-local behaviour introduced in formulation BK equation, three different prescriptions are considered take into account rapidities preceding initial condition value. The solutions used compute structure functions proton and diffractive photo- electro-production J/𝜓. These...