Zobrazeno 1 - 10
of 36
pro vyhledávání: '"de Oliveira, Emmanuel G."'
We study the coherent photoproduction of light vector mesons in Pb-Pb collisions in the framework of color dipole approach. We employ the Glauber--Gribov formalism supplemented by an effective suppression factor $R_G$ accounting for the gluon shadowi
Externí odkaz:
http://arxiv.org/abs/2310.06965
The effective cross section of double parton scattering in proton collisions has been measured by many experiments with rather different results. Motivated by this fact, we assumed that the parton correlations in the transverse plane are different wh
Externí odkaz:
http://arxiv.org/abs/2305.11106
Publikováno v:
Eur.Phys.J.C 83 (2023) 6, 551
In this paper, we study total and differential observables of electro- and photoproduction of light $\rho$, $\omega$ and $\phi$ mesons as functions of the center-of-mass energy of the $\gamma p$ collision and momentum transfer squared $|t|$. The corr
Externí odkaz:
http://arxiv.org/abs/2207.13756
We discuss the associated $c\bar{c}$ and $l^+l^-$ pairs production in ultraperipheral heavy-ion collisions at high energies. Such a channel provides a novel probe for double-parton scattering (DPS) at small $x$ enabling one to probe the photon densit
Externí odkaz:
http://arxiv.org/abs/2106.11465
Publikováno v:
Phys. Rev. D 104, 054008 (2021)
In this paper, we study fully differential quarkonia photoproduction observables in ultraperipheral collisions (UPCs) as functions of momentum transfer squared. We employ the dipole picture of the QCD part of the scattering with proton and nucleus ta
Externí odkaz:
http://arxiv.org/abs/2009.14158
Publikováno v:
Phys. Rev. D 102, 014024 (2020)
In this paper, we discuss the exclusive photoproduction of ground and excited states of $\psi(1S,2S)$ and $\Upsilon(1S,2S)$ in ultraperipheral collisions (UPCs). Using the potential model in order to obtain the vector meson wave function, we find a g
Externí odkaz:
http://arxiv.org/abs/2004.00607
We discuss the associated $c\bar{c}$ and $b\bar{b}$ quark pairs production in the double-parton scattering (DPS) process in ultraperipheral (UPCs) $AA$ collisions. We derive an analogue of the inclusive DPS pocket formula and the photon-energy depend
Externí odkaz:
http://arxiv.org/abs/2003.06412
Predictions for Drell--Yan lepton pair production at low dilepton mass and small x at the LHC usually have a large scale dependence. This can be decreased by determining an "optimal factorization scale". In this paper, we reduce this scale by imposin
Externí odkaz:
http://arxiv.org/abs/2002.01908
In this article, we propose a novel channel for phenomenological studies of the double-parton scattering (DPS) based upon associated production of charm $c\bar{c}$ and bottom $b\bar{b}$ quark pairs in well-separated rapidity intervals in ultra-periph
Externí odkaz:
http://arxiv.org/abs/1905.03294
Publikováno v:
Phys. Rev. D 99, 034016 (2019)
In this article, we study the fully differential observables of exclusive production of heavy (charm and bottom) quark pairs in high-energy ultraperipheral $pA$ and $AA$ collisions. In these processes, the nucleus $A$ serves as an efficient source of
Externí odkaz:
http://arxiv.org/abs/1811.12888