Zobrazeno 1 - 10
of 965
pro vyhledávání: '"Szczurek Antoni"'
Publikováno v:
EPJ Web of Conferences, Vol 291, p 02003 (2024)
We calculate the differential cross section dσ/dt for the diffractive photoproduction process γp → ρp and compare our results with experimental data. Our model is based on two-gluon exchange in the nonperturbative domain. We take into account bo
Externí odkaz:
https://doaj.org/article/2fc21dc8063446a1bcbe66a29c8dd7a4
Publikováno v:
EPJ Web of Conferences, Vol 291, p 03007 (2024)
Abstract. The charmonium state ηc is a pseudoscalar meson (JPC = 0−+). We will review the proton-proton and electron-ion reactions, where ηc can be produced through the fusion of two virtual gluons in pp collision or one virtual photon-one real p
Externí odkaz:
https://doaj.org/article/0b2d0dc4d9514af18708a742a3732568
Publikováno v:
EPJ Web of Conferences, Vol 291, p 03008 (2024)
Abstract. We propose to study the structure of the enigmatic χc1(3872) axial vector meson through its γL*γ → χc1 (3872) transition form factor. We use our recently derived light-front wave function representation of the form factor for the lowe
Externí odkaz:
https://doaj.org/article/ba26b8b083b4456ebffe75fdb89ee526
Autor:
Szczurek, Antoni, Jucha, Pawel
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 ($p_{t,\gamma}$) and invariant mass ($M_{\gamma\gamma}$
Externí odkaz:
http://arxiv.org/abs/2412.12695
Autor:
Szczurek, Antoni, Linek, Barbara
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 focus on the
Externí odkaz:
http://arxiv.org/abs/2412.09131
The ultraperipheral collisions are the source of various interesting phenomena based on photon-induced reactions. We calculate cross sections for single and any number of n, p, $\alpha$, $\gamma$-rays in ultraperipheral heavy-ion collision for LHC en
Externí odkaz:
http://arxiv.org/abs/2411.17865
Autor:
Szczurek, Antoni, Maciuła, Rafał
We discuss production of $D^0$ and ${\bar D}^0$ mesons in proton-nucleus collisions in fixed target experiments. We include gluon-gluon fusion, intrinsic charm and perturbative recombination. We compare rapidity and transverse momentum distributions
Externí odkaz:
http://arxiv.org/abs/2410.00187
Recent results indicate that charm quarks are intrinsic components of the proton wave function, and that the charm and anticharm distributions for a given value of the Bjorken - $x$ variable can be different. In this paper, we will investigate the im
Externí odkaz:
http://arxiv.org/abs/2406.03943
Autor:
Szczurek, Antoni
I present possible future studies of light-by-light scattering using FoCal@ALICE and ALICE 3 detectors. Different mechanisms are discussed. The PbPb$\to$PbPb$\gamma \gamma$ cross section is calculated within equivalent photon approximation in the imp
Externí odkaz:
http://arxiv.org/abs/2404.06518
We discuss the diffractive bremsstrahlung of a single photon in the $pp \to pp \gamma$ reaction at LHC energies and at forward photon rapidities. We compare the results for our standard approach, based on QFT and the tensor-Pomeron model, with two ve
Externí odkaz:
http://arxiv.org/abs/2403.17039