H. Kowalski
A5000536746- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Nuclear physics research studies
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Nuclear Physics and Applications
- Distributed and Parallel Computing Systems
- Advanced X-ray Imaging Techniques
- Neutrino Physics Research
- Seismic Imaging and Inversion Techniques
- Quantum, superfluid, helium dynamics
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Crystallography and Radiation Phenomena
- Spacecraft and Cryogenic Technologies
- X-ray Diffraction in Crystallography
- Cosmology and Gravitation Theories
- X-ray Spectroscopy and Fluorescence Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Geophysics and Gravity Measurements
Deutsches Elektronen-Synchrotron DESY
2012-2021
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
1992-2016
University of Southampton
2015
Petersburg Nuclear Physics Institute
2015
Hamburg Institut (Germany)
2015
National Space Agency
2014
Malaysian Nuclear Agency
2014
Tel Aviv University
2014
Sri Guru Granth Sahib World University
2014
National Insurance Institute of Israel
2014
The physics programme and the design are described of a new collider for particle nuclear physics, Large Hadron Electron Collider (LHeC), in which newly built electron beam 60 GeV, up to possibly 140 energy collides with intense hadron beams LHC. Compared HERA, kinematic range covered is extended by factor twenty negative four-momentum squared, $Q^2$, inverse Bjorken $x$, while luminosity $10^{33}$ cm$^{-2}$s$^{-1}$ LHeC projected exceed integrated HERA two orders magnitude. devoted an...
We develop a dipole model for HERA DIS data which incorporates the impact parameter distribution of proton. The describes inclusive total $\gamma^*p$ cross-sections as well diffractive $J/\psi$ differential cross-sections. compare with previous approaches and show that $t$-distributions are sensitive to saturation phenomena. estimate boundary region it dominates in low-$Q^2$ where cross-section exhibits same universal rise hadronic is then extended nuclei shows good agreement nuclear...
We present a simultaneous analysis, within an impact parameter dependent saturated dipole model, of exclusive diffractive vector meson ($J/\ensuremath{\psi}$, $\ensuremath{\phi}$, and $\ensuremath{\rho}$) production, deeply virtual Compton scattering the total ${\ensuremath{\gamma}}^{*}p$ cross section data measured at HERA. Various sections as function kinematic variables ${Q}^{2}$, $W$ $t$ are well described, with little sensitivity to details wave functions. determine properties gluon...
HERAFitter is an open-source package that provides a framework for the determination of parton distribution functions (PDFs) proton and many different kinds analyses in Quantum Chromodynamics (QCD). It encodes results from wide range experimental measurements lepton–proton deep inelastic scattering proton–proton (proton–antiproton) collisions at hadron colliders. These are complemented with variety theoretical options calculating PDF-dependent cross section predictions corresponding to...
The production of D+- and D0 mesons has been measured with the ZEUS detector at HERA using an integrated luminosity 133.6 pb-1. measurements cover kinematic range 5 < Q^2 1000 GeV^2, 0.02 y 0.7, 1.5 p_T^D 15 GeV eta^D 1.6. Combinatorial background to D meson signals is reduced by microvertex reconstruct displaced secondary vertices. Production cross sections are compared predictions next-to-leading-order QCD which found describe data well. Measurements extrapolated full phase space in order...
We show that the color glass condensate dipole model of Iancu, Itakura, and Munier, improved to include impact parameter dependence, gives a good fit total ${\ensuremath{\gamma}}^{*}p$ cross section measured at HERA if anomalous dimension saturation scale, ${\ensuremath{\gamma}}_{s}$, is treated as free parameter. find optimum value ${\ensuremath{\gamma}}_{s}=0.46$ close determined from numerical solution Balitsky-Kovchegov equation. The dependent scale generally less than $0.5\text{ }\text{...
We show that the enhancement of saturation scale in large nuclei relative to proton is significantly influenced by effects quantum evolution and impact parameter dependence dipole cross sections high energy QCD. demonstrate there a strong $A$ diffractive deeply inelastic scattering discuss its sensitivity measurement recoil nucleus.
We present the FP420 R&D project, which has been studying key aspects of development and installation a silicon tracker fast-timing detectors in LHC tunnel at 420 m from interaction points ATLAS CMS experiments. These would measure precisely very forward protons conjunction with corresponding central as means to study Standard Model (SM) physics, search for characterise new physics signals. This report includes detailed description case detector and, particular, measurement Central Exclusive...
We compute diffractive structure functions for both protons and nuclei in the framework of color glass condensate models with impact parameter dependence. These have previously been shown to provide good agreement inclusive ${F}_{2}$ measurements exclusive vector meson at DESY's Hadron-Electron Ring Accelerator (HERA). For nuclei, they (parameter free) data. demonstrate our computations HERA on diffraction. extend analysis predict pattern enhancement suppression that can be measured an...