Anna Cisek
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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: 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: Helicity-flip transitions and the t-dependence of exclusive photoproduction of rho meson
Helicity-flip transitions and the t-dependence of exclusive photoproduction of rho meson Open
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 ac…
View article: Exclusive production of ρ meson in gamma-proton collisions: dσ/dt and the role of helicity flip processes
Exclusive production of ρ meson in gamma-proton collisions: dσ/dt and the role of helicity flip processes Open
We calculate the differential cross section dσ/dt for the diffractive photoproduction process γp→ρp and compare to recent data extracted by the CMS collaboration from ultraperipheral proton-lead collisions. Our model is based on two-gluon …
View article: Exclusive production of $ρ$ meson in gamma-proton collisions: $d σ/dt$ and the role of helicity flip processes
Exclusive production of $ρ$ meson in gamma-proton collisions: $d σ/dt$ and the role of helicity flip processes Open
We calculate the differential cross section $dσ/dt$ for the diffractive photoproduction process $γp \to ρp$ and compare to recent data extracted by the CMS collaboration from ultraperipheral proton-lead collisions. Our model is based on tw…
View article: Exclusive and semiexclusive production of vector mesons in proton-proton collisions with electromagnetic of proton dissociation
Exclusive and semiexclusive production of vector mesons in proton-proton collisions with electromagnetic of proton dissociation Open
We calculate rapidity and transverse momentum distributions for different vector mesons in purely exclusive $(pp \to ppV)$ and semiexclusive $(pp \to pXV)$ processes with the electromagnetic dissociation of a proton. The cross section for …
View article: Production of $\chi_c(i) \chi_c(j)$ pairs in proton-proton collisions in $k_t$-factorization and collinear approaches
Production of $\chi_c(i) \chi_c(j)$ pairs in proton-proton collisions in $k_t$-factorization and collinear approaches Open
Here we present recent results of our calculations of χ c pair production, mainly in the single parton scattering (SPS) mode. An important feature is that the single-gluon exchange mechanism can to some extent mimic the behaviour of double…
View article: Semiexclusive production of vector mesons in proton-proton collisions with electromagnetic dissociation
Semiexclusive production of vector mesons in proton-proton collisions with electromagnetic dissociation Open
We calculate distributions of different vector mesons in purely exclusive ($p p \to p p V$) and semi-exclusive ($p p \to p X V$) processes with electromagnetic dissociation of a proton. The cross section for the electromagnetic dissociatio…
View article: Recent Results on Inclusive Quarkonium Pair Production in Proton-Proton Collisions
Recent Results on Inclusive Quarkonium Pair Production in Proton-Proton Collisions Open
Recently, there has been much interest in the pair production of charmonia. One of the main motivations behind these studies is that the production of quarkonium pairs is expected to receive an important contribution from the double parton…
View article: Semiexclusive production of vector mesons in proton-proton collisions with electromagnetic dissociation of protons
Semiexclusive production of vector mesons in proton-proton collisions with electromagnetic dissociation of protons Open
We discuss the semiexclusive production of vector mesons in protonproton collisions with electromagnetic dissociation of one of the protons. Several differential distribution in missing mass ( M X ), or single-particle variables related ex…
View article: Inclusive production of vector quarkonia at the LHC
Inclusive production of vector quarkonia at the LHC Open
We discuss prompt production of $J/ψ$ mesons in proton-proton collisions at the LHC within NRQCD k$t$-factorization approach using Kimber-Martin-Ryskin (KMR) and Kutak-Stasto (KS) unintegrated gluon distribution (UGDF). We include both dir…
View article: Photoproduction of $J/\psi$ with dissociation of protons
Photoproduction of $J/\psi$ with dissociation of protons Open
We present the cross sections for both electromagnetic and diffractive\ndissociation of protons for semiexclusive production of $J/\\psi$ mesons in\nproton-proton collisions at the LHC. Differential distributions in missing mass\n($M_X$), …
View article: Production of two $J/\psi$ mesons in proton-proton collisions at the LHC
Production of two $J/\psi$ mesons in proton-proton collisions at the LHC Open
We discuss inclusive production of pairs of $J/\psi$ quarkonia. Both leading-order single parton (box) contribution and double-parton contributions are included. In addition we discuss a contribution of higher-order two-gluon exchange and …
View article: Production of two $J/ψ$ mesons in proton-proton collisions at the LHC
Production of two $J/ψ$ mesons in proton-proton collisions at the LHC Open
We discuss inclusive production of pairs of $J/ψ$ quarkonia. Both leading-order single parton (box) contribution and double-parton contributions are included. In addition we discuss a contribution of higher-order two-gluon exchange and a f…
View article: Photoproduction of $J/ψ$ with dissociation of protons
Photoproduction of $J/ψ$ with dissociation of protons Open
We present the cross sections for both electromagnetic and diffractive dissociation of protons for semiexclusive production of $J/ψ$ mesons in proton-proton collisions at the LHC. Differential distributions in missing mass ($M_X$), as well…
View article: Some New Aspects of Quarkonia Production at the LHC
Some New Aspects of Quarkonia Production at the LHC Open
We discuss some different new aspects of $J/\\psi$ meson production in\nexclusive, semi-exclusive and inclusive processes. We finish with a short\ndiscussion of double $J/\\psi$ production. We point out some new results\nobtained recently …
View article: Photoproduction of $J/\psi$ and $Upsilon$ states in exclusive and proton-dissociative diffractive events
Photoproduction of $J/\psi$ and $Upsilon$ states in exclusive and proton-dissociative diffractive events Open
The amplitude for γ p → V p, where V is a J/ψ or ϒ ground state or excited vector meson, is calculated in a pQCD k T -factorization approach.We use this amplitude to predict the cross section for exclusive photoproduction of J/ψ, ψ ′ , ϒ m…
View article: Recent progress in some exclusive and semi-exclusive processes in proton-proton collisions
Recent progress in some exclusive and semi-exclusive processes in proton-proton collisions Open
We present the main results of our recent analyses of exclusive production of\nvector charmonia ($J/\\psi$ and $\\psi'$) in $k_t$-factorization approach and for\n$\\gamma \\gamma$ production of charged dilepton pairs in exclusive and\nsemi…