Antoni Szczurek
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View article: Transition form-factor for $$\eta _Q$$ at NNLO in the strong coupling $$\alpha _s$$ and with all-order $$v^2$$ resummation
Transition form-factor for $$\eta _Q$$ at NNLO in the strong coupling $$\alpha _s$$ and with all-order $$v^2$$ resummation Open
In this work, we discuss both relativistic and perturbative QCD corrections to the transition form-factor $$\mathcal{F}_{\eta _Q}{(t_1,t_2)}$$ for the process $$\gamma ^*(q_1) \gamma ^*(q_2) \leftrightarrow \eta _Q(P)$$ …
View article: Impact of inelastic corrections on $γγ\to γγ$ scattering from UPC at the LHC
Impact of inelastic corrections on $γγ\to γγ$ scattering from UPC at the LHC Open
The current theoretical estimations lead to cross-sections for $AA \to γγAA$ which are somewhat smaller than the measured ones by the ATLAS and CMS Collaborations, In our recent paper, we estimated the contribution of inelastic channels to…
View article: Neutron emission associated with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi></mml:math> scattering in ultraperipheral collisions of heavy ions at the LHC
Neutron emission associated with scattering in ultraperipheral collisions of heavy ions at the LHC Open
We calculate cross sections for the production of different neutron classes 0n0n, 0nXn+Xn0n and XnXn, possible to measure in Zero Degree Calorimeters (ZDCs), associated with photon-photon scattering in ultraperipheral collisions (UPC) of l…
View article: New UPC results at the LHC - modeling the proton and neutron emission in photon-induced nuclear processes
New UPC results at the LHC - modeling the proton and neutron emission in photon-induced nuclear processes Open
The ultrarelativistic collisions of heavy ions provide rich spectrum of possibilities to discuss the response of the nucleus to photons. Newly published neutron and proton multiplicities measured in the ALICE experiment in ultraperipheral …
View article: Production of $π^{+}π^{-}$ pairs in diffractive photon-proton and in proton-proton collisions revisited, in particular concerning the Drell-Söding contribution
Production of $π^{+}π^{-}$ pairs in diffractive photon-proton and in proton-proton collisions revisited, in particular concerning the Drell-Söding contribution Open
We discuss the central exclusive photoproduction of $π^{+}π^{-}$ pairs in photon-proton and in proton-proton collisions at high energies. The $ρ^{0}$, $ω$, $f_{2}(1270)$, and non-resonant (Drell-Söding) contributions are considered. The ca…
View article: Central exclusive production of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>η</mml:mi></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>η</mml:mi><mml:mo>′</mml:mo></mml:msup></mml:math> mesons in diffractive proton-proton collisions at the LHC within the tensor-pomeron approach
Central exclusive production of and mesons in diffractive proton-proton collisions at the LHC within the tensor-pomeron approach Open
We present a study of the central exclusive production (CEP) of η and η′(958) mesons in diffractive proton-proton collisions at high energies. The amplitudes, including pomeron and f2R reggeon exchanges, are calculated within the tensor-po…
View article: Neutron emission associated with $γγ\toγγ$ scattering in UPC of heavy ions at the LHC
Neutron emission associated with $γγ\toγγ$ scattering in UPC of heavy ions at the LHC Open
We calculate cross sections for the production of different neutron classes $0n 0n$, $0nXn+Xn0n$ and $Xn Xn$, possible to measure in Zero Degree Calorimeters (ZDCs), associated with photon-photon scattering in UPC of lead on lead. The calc…
View article: Production of Neutrons and Protons from Nuclei Excited in UPC
Production of Neutrons and Protons from Nuclei Excited in UPC Open
The strong electromagnetic field induced by a nucleus moving with relativistic velocity in ultraperipheral collisions is a source of the quasireal photons, which can be absorbed by the partner nucleus and excite it. This leads to the evapo…
View article: Production of Open and Hidden Charm in Fixed-target Experiments at the LHC
Production of Open and Hidden Charm in Fixed-target Experiments at the LHC Open
We discuss the production of \(D\) mesons and \(J/\psi \) quarkonia in proton–nucleus collisions in the fixed-target LHCb experiment. We consider gluon–gluon fusion within \(k_{\mathrm {t}}\)-factorization, processes initiated by intrinsic…
View article: Central exclusive production of $η$ and $η'$ mesons in diffractive proton-proton collisions at the LHC within the tensor-pomeron approach
Central exclusive production of $η$ and $η'$ mesons in diffractive proton-proton collisions at the LHC within the tensor-pomeron approach Open
We present a study of the central exclusive production (CEP) of $η$ and $η'(958)$ mesons in diffractive proton-proton collisions at high energies. The amplitudes, including pomeron and $f_{2 \mathbb{R}}$ reggeon exchanges, are calculated w…
View article: Light-by-Light Scattering in Ultraperipheral Heavy-ion Collisions — New Possibilities
Light-by-Light Scattering in Ultraperipheral Heavy-ion Collisions — New Possibilities Open
Light-by-light scattering is a relatively new area of experimental physics. Our recent, theoretical research shows that studying two-photon measurements in regions with lower transverse momentum (\(p_{\mathrm {t},\gamma }\)) and invariant …
View article: Photon-induced Neutron, Proton, and Alpha Evaporation from Heavy Nucleus
Photon-induced Neutron, Proton, and Alpha Evaporation from Heavy Nucleus Open
In ultraperipheral heavy-ion collisions (UPCs) at the Large Hadron Collider (LHC), Pb nuclei are excited through interactions induced by strong electromagnetic fields. The expected excitation energy could reach hundreds MeV, which leads to…
View article: Production of open and hidden charm in fixed-target experiments at the LHC
Production of open and hidden charm in fixed-target experiments at the LHC Open
We discuss the production of $D$ mesons and $J/ψ$ quarkonia in proton-nucleus collisions in the fixed-target LHCb experiment. We consider gluon-gluon fusion within $k_t$-factorization, processes initiated by intrinsic charm in the nucleon …
View article: Prompt inclusive production of $J/ψ$, $ψ'$ and $χ_{c}$ mesons at $\sqrt{s}$ $=$ $68.5$ $GeV$ energy within NRQCD $k_t$-factorization approach
Prompt inclusive production of $J/ψ$, $ψ'$ and $χ_{c}$ mesons at $\sqrt{s}$ $=$ $68.5$ $GeV$ energy within NRQCD $k_t$-factorization approach Open
We discuss prompt production of $J/ψ$ mesons in proton-proton collisions at the $\sqrt{s}$ $=$ $68.5$ $GeV$ energy within NRQCD $k_t$-factorization approach using different unintegrated gluon distributions functions (UGDFs). We include bot…
View article: Light-by-light scattering in ultraperipheral collisions of heavy ions with future FoCal and ALICE 3 detectors
Light-by-light scattering in ultraperipheral collisions of heavy ions with future FoCal and ALICE 3 detectors Open
I present possible future studies of light-by-light scattering using FoCal@ALICE and ALICE 3 detectors. Different mechanisms are discussed. The PbPb → PbPb γγ cross section is calculated within the equivalent photon approximation in the im…
View article: Light-by-Light scattering in ultraperipheral heavy ion collisions: Estimating inelastic contributions
Light-by-Light scattering in ultraperipheral heavy ion collisions: Estimating inelastic contributions Open
The current state-of-the-art theoretical estimations lead to cross-sections for $AA \to γγAA$ which are somewhat smaller than the measured ones by the ATLAS and CMS Collaborations, which motivates the searching and calculation of subleadin…
View article: Exclusive η_c production by γ*γ interactions in electron-ion collisions
Exclusive η_c production by γ*γ interactions in electron-ion collisions Open
One of the main goals of future electron-ion colliders is to improve our understanding of the structure of hadrons. We study the exclusive ηc production by γγ* interactions in eA collisions and demonstrate that future experimental analysis…
View article: Ultra-Precise Dispensing in 3D Packaging: A Seamless Shift from R&D to Production
Ultra-Precise Dispensing in 3D Packaging: A Seamless Shift from R&D to Production Open
Additive manufacturing (AM) opens up a world of possibilities for creating next-generation electronics. However, employing AM technologies in microfabrication presents its own unique set of challenges. The ongoing trend towards miniaturiza…
View article: Light-by-light scattering in ultraperipheral heavy ion collisions -- new possibilities
Light-by-light scattering in ultraperipheral heavy ion collisions -- new possibilities Open
Light-by-light scattering is a relatively new area of experimental physics. Our recent, theoretical research shows that studying two photon measurements in regions with lower transverse momentum ($p_{t,γ}$) and invariant mass ($M_{γγ}$) al…
View article: Study of $\gamma\gamma\to\gamma\gamma$ processes in UPC with future FoCal and ALICE 3 detector
Study of $\gamma\gamma\to\gamma\gamma$ processes in UPC with future FoCal and ALICE 3 detector Open
It was discussed how planned facilities may provide new information on $\gamma\gamma \to \gamma\gamma$ scattering in UPC of heavy ions. In some regions at the phase space, the hadronic excitation of both photons could be seen as a 10\% mod…
View article: Photon-induced neutron, proton and alpha evaporation from heavy nucleus
Photon-induced neutron, proton and alpha evaporation from heavy nucleus Open
In ultraperipheral heavy-ion collisions (UPCs) at the Large Hadron Collider (LHC) Pb nuclei are excited through interactions induced by strong electromagnetic fields. The expected excitation energy could reach hundreds MeV, which leads to …
View article: Exclusive diffractive dijets at HERA and EIC using GTMDs
Exclusive diffractive dijets at HERA and EIC using GTMDs Open
We calculate differential distributions for diffractive production of dijets in $ep\rightarrow e^{'}p\,jet\,jet$ reaction using off diagonal unintegrated gluon distributions, often called GTMDs for brevity. Different models are used. We fo…
View article: The Future of Experimental Measurements of Light-by-Light Scattering
The Future of Experimental Measurements of Light-by-Light Scattering Open
Light-by-light scattering is a relatively new area in experimental physics. Our recent, theoretical research shows that studying two photon measurements in regions with lower transverse momentum (pt,γ) and invariant mass (Mγγ) allows us to…