A5035591672- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Cold Atom Physics and Bose-Einstein Condensates
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Cosmology and Gravitation Theories
- Distributed and Parallel Computing Systems
- Laser Design and Applications
- Particle Detector Development and Performance
- Advanced Data Storage Technologies
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Pulsars and Gravitational Waves Research
- Quantum chaos and dynamical systems
- Quantum, superfluid, helium dynamics
- Noncommutative and Quantum Gravity Theories
- Quantum Mechanics and Non-Hermitian Physics
- Physics of Superconductivity and Magnetism
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Quantum and electron transport phenomena
National Centre for Nuclear Research
2016-2025
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
2024
Centrum Badań Jakości
2023
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
2022
Centre National de la Recherche Scientifique
2011-2020
École Polytechnique
2011-2020
Petersburg Nuclear Physics Institute
2020
Kurchatov Institute
2020
Ghent University
2019
Bogolyubov Institute for Theoretical Physics
2019
We provide a concise overview on transverse momentum dependent (TMD) parton distribution functions, their application to topical issues in high-energy physics phenomenology, and theoretical connections with QCD resummation, evolution factorization theorems. illustrate the use of TMDs via examples multi-scale problems hadronic collisions. These include q_T spectra Higgs vector bosons for low q_T, azimuthal correlations production multiple jets associated heavy at large jet masses. discuss...
We develop a framework combining the higher-twist formalism of exclusive processes in <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>s</a:mi></a:math> channel with semiclassical effective description small-<c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>x</c:mi></c:math> physics <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mi>t</e:mi></e:math> channel. apply it to transversely polarized light vector meson...
We calculate cross section and azimuthal decorrellation of Mueller Navelet jets at the LHC in complete next-lo-leading order BFKL framework, i.e. including next-to-leading corrections to Green's function as well vertices. The obtained results for standard observables proposed studies show that both sources are equal, big importance final magnitude behavior observables. astonishing conclusion our analysis is within framework present paper quite similar same DGLAP type treatment. This fact...
The study of the production two forward jets with a large interval rapidity at hadron colliders was proposed by Mueller and Navelet as possible test high energy dynamics QCD. We analyze this process within complete next-to-leading logarithm framework, supplemented use Brodsky-Lepage-Mackenzie procedure extended to perturbative Regge dynamics, find optimal renormalization scale. This leads very good description recent CMS data LHC for azimuthal correlations jets.
A bstract More than 25 years ago, Mueller Navelet jets were proposed as a decisive test of BFKL dynamics at hadron colliders. We here study this process NLL accuracy, taking into account corrections to the Green’s function and jet vertices. present detailed predictions for various observables that can be measured LHC in ongoing experiments like ATLAS or CMS $ \sqrt{s}=7 TeV: cross-section, azimuthal correlations angular distribution these jets. For purpose, we apply realistic kinematical...
We present the calculation of impact factor for $$ {\gamma}^{\left(\ast \right)}\to q\overline{q} transition with one loop accuracy in arbitrary kinematics. The was done within Balitsky's high energy operator expansion. Together our previous result q\overline{q}g Born it allows to derive cross sections 2- (one loop) and 3-jet (Born) difractive electroproduction. write such 2 3 jet exclusive diffractive electroproduction off a proton terms hadronic matrix elements Wilson lines. For 2-jet...
A bstract The cross-sections of diffractive double hadron photo- or electroproduction with large p T , on a nucleon nucleus, are calculated to NLO accuracy. hybrid formalism mixing collinear factorization and high energy small- x factorization, more precisely the shockwave for latter, is used derive results. cancellation divergences explicitly shown, finite parts differential found. We work in arbitrary kinematics such that both photoproduction leptoproduction considered. results therefore...
A bstract We calculate the cross-sections of diffractive single hadron photo- or electroproduction with large p T , on a nucleon nucleus in shockwave formalism. use hybrid formalism mixing collinear factorization high energy small- x impact factors computed at next-to-leading order accuracy. prove cancellation divergence and we determine finite parts differential cross-sections. work general kinematics such that both photoproduction leptoproduction are considered. The results can be used to...
Exclusive diffractive meson production represents a golden channel for investigating gluonic saturation inside nucleons and nuclei. In this Letter, we settle systematic framework to deal with beyond leading power corrections at small <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>x</a:mi></a:math>, including the regime, obtain <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...
We perform the first next-to-leading order computation of ${\ensuremath{\gamma}}^{(*)}\ensuremath{\rightarrow}V$ ($\ensuremath{\rho},\ensuremath{\phi},\ensuremath{\omega}$) exclusive impact factor in QCD shock-wave approach and most general kinematics. This paves way to very quantitative study high-energy nucleon nucleus saturation beyond leading for a whole range small-$x$ processes, be measured $ep$, $eA$, $pp$, $pA$ collisions at existing future colliders.
We study timelike and spacelike virtual Compton scattering in the generalized Bjorken scaling regime at next-to-leading order strong coupling constant, medium energy range which will be studied intensely JLab12 COMPASS-II experiment CERN. show that Born amplitudes get sizeable $O({\ensuremath{\alpha}}_{s})$ corrections and, even moderate energies, gluonic contributions are by no means negligible. stress cases complementary their difference deserves much special attention.
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...
We calculate the O(alpha_s) corrections to timelike, spacelike and double deeply virtual Compton scattering amplitudes in generalized Bjorken scaling region. Special attention is devoted studies of difference between next leading order timelike coefficient functions, which plays for this process a role analogous large K factor was much discussed analysis inclusive Drell Yan cross sections. Also present nature hard scale gives rise new absorptive part amplitude presence characteristic pi^2...
We show to next-to-leading order accuracy in the strong coupling ${\ensuremath{\alpha}}_{s}$ how collinear factorization properties of QCD generalized Bjorken regime relate exclusive amplitudes for spacelike and timelike hadronic processes. This yields simple space-to-timelike relations linking electroproduction a photon or meson those photo- mesoproduction lepton pair. These constitute new test relevance leading twist analyses experimental data.
We present the calculation of impact factor for γ(∗) → q $$ \overline{q} g transition within Balitsky's high energy operator expansion. also rederive q\overline{q} same framework. These results provide necessary building blocks further phenomenological studies inclusive diffractive deep inelastic scattering, as well as, two and three jets production, which go beyond approximations discussed in literature.
We develop the analysis of diphoton exclusive photoproduction in kinematics where a collinear QCD factorization framework applies, namely nearly forward large invariant mass production. work at leading twist level and next-to-leading order (NLO) strong coupling constant $\alpha_S$. compare our predictions for cross-sections with Born calculations experimental conditions accessible to JLab experiments show interesting sensitivity results various models generalized parton distributions (GPDs)....
We extend our studies of a new class $2\ensuremath{\rightarrow}3$ exclusive processes using the collinear factorization framework by considering photoproduction $\ensuremath{\gamma}\ensuremath{\rho}$ pair, in kinematics where pair has large invariant mass, and outgoing $\ensuremath{\rho}$ meson sufficiently transverse momentum to not resonate with nucleon. cover whole kinematical range from medium energies fixed-target experiments very colliders, experimental conditions JLab 12-GeV, COMPASS,...
A bstract We compute the exclusive photoproduction of a γπ ± pair using collinear factorisation framework, in kinematic regime where has large invariant mass and meson sufficiently transverse momentum to not resonate with outgoing nucleon. This channel presents new avenue for investigation GPDs. It is particularly interesting as high centre energies available at future experiments will allow study GPDs small skewness ξ . scattering amplitude process, leading twist order α s , which used...
The cross section of ${\ensuremath{\chi}}_{\mathrm{cJ}}$ hadroproduction is calculated in the ${k}_{\ensuremath{\perp}}$-factorization approach. We find a significant contribution ${\ensuremath{\chi}}_{c1}$ state due to non-applicability Landau-Yang theorem because off-shell gluons. results are agreement with data and, contrast collinear factorization, show dominance color-singlet part and strong suppression color octet contribution. Our could therefore lead solution long-standing...
We apply a previously developed scheme to consistently include the twist-3 distribution amplitudes for transversely polarized rho meson in order evaluate, framework of kT factorization, helicity exclusive leptoproduction light vector meson, at leading alphaS. compare our results with high energy experimental data ratios T11/T00 and T01/T00 get good description data.