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### Numerical precision of the solution to the running-coupling Balitsky-Kovchegov equation

Matas Marek, Cepila Jan, Contreras Nuno Jesus Guillermo
EPJ Web of conferences, 01 January 2016, Vol.112, p.02008 [Peer Reviewed Journal]

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### Rapidity dependence of saturation in inclusive HERA data with the rcBK equation

Cepila, Jan, Contreras, Jesús Guillermo
Cornell University
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Title: Rapidity dependence of saturation in inclusive HERA data with the rcBK equation
Author: Cepila, Jan; Contreras, Jesús Guillermo
Subject: High Energy Physics - Phenomenology
Description: The contribution of the different terms of the running-coupling Balistky-Kovchegov (rcBK) equation to the description of inclusive HERA data is discussed. Within this framework an alternative definition of the saturation scale is presented. The definition is based on the ratio of the term corresponding to the recombination of two dipoles to the term corresponding to a dipole splitting. A similar ratio is used to study the contribution of the recombination term to the evolution of inclusive HERA data with rapidity. It is found that, although the data are well described, the behaviour of the different terms of the rcBK equation for HERA kinematics is not what it is naively expected from saturation arguments.
Identifier: 1501.06687 (ARXIV ID)
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### Rapidity dependence of saturation in inclusive HERA data with the rcBK equation

Cepila, Jan, Contreras, Jesús
arXiv.org, Sep 6, 2016
© ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
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Title: Rapidity dependence of saturation in inclusive HERA data with the rcBK equation
Author: Cepila, Jan; Contreras, Jesús
Contributor: Contreras, Jesús (pacrepositoryorg)
Subject: Dipoles ; Dependence ; Kinematics ; Saturation
Description: The contribution of the different terms of the running-coupling Balistky-Kovchegov (rcBK) equation to the description of inclusive HERA data is discussed. Within this framework an alternative definition of the saturation scale is presented. The definition is based on the ratio of the term corresponding to the recombination of two dipoles to the term corresponding to a dipole splitting. A similar ratio is used to study the contribution of the recombination term to the evolution of inclusive HERA data with rapidity. It is found that, although the data are well described, the behaviour of the different terms of the rcBK equation for HERA kinematics is not what it is naively expected from saturation arguments.
Is part of: arXiv.org, Sep 6, 2016
Identifier: 2331-8422 (E-ISSN)
• Several versions

### Coherent and incoherent $$\mathrm{J/}\psi$$ photonuclear production in an energy-dependent hot-spot model

Cepila, Jan, Contreras, Jesus, Krelina, Michal
arXiv.org, Feb 27, 2018 [Peer Reviewed Journal]

• Several versions

### Spin rotation effects in diffractive electroproduction of heavy quarkonia

Krelina, Michal, Nemchik, Jan, Pasechnik, Roman, Cepila, Jan

• Several versions

### Theoretical uncertainties in exclusive electroproduction of S -wave heavy quarkonia

Cepila, Jan, Nemchik, Jan, Krelina, Michal, Pasechnik, Roman
The European Physical Journal C, 2019, Vol.79(6), pp.1-29 [Peer Reviewed Journal]

• Several versions

### Contribution of the non-linear term in the Balitsky-Kovchegov equation to the nuclear structure functions

Cepila, Jan, Matas, Marek
arXiv.org, Sep 21, 2020 [Peer Reviewed Journal]

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### Spin rotation effects in diffractive electroproduction of heavy quarkonia

Krelina, Michal, Nemchik, Jan, Pasechnik, Roman, Cepila, Jan
arXiv.org, Jan 30, 2019
© ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
Available
Title: Spin rotation effects in diffractive electroproduction of heavy quarkonia
Author: Krelina, Michal; Nemchik, Jan; Pasechnik, Roman; Cepila, Jan
Contributor: Cepila, Jan (pacrepositoryorg)
Subject: Photoproduction ; Schroedinger Equation ; Dipoles ; Wave Functions ; Rotation ; Cross Sections
Description: In this work we present for the first time the comprehensive study of the Melosh spin rotation effects in diffractive electroproduction of S-wave heavy quarkonia off a nucleon target. Such a study has been performed within the color dipole approach using, as an example and a reference point, two popular parametrizations of the dipole cross section and two potentials describing the interaction between Q and bar{Q} and entering in the Schroedinger equation based formalism for determination of the quarkonia wave functions. We find a strong onset of spin rotation effects in 1S charmonium photoproduction which is obviously neglected in present calculations of corresponding cross sections. For photoproduction of radially excited Psi'(2S) these effects are even stronger leading to an increase of the photoproduction cross section by a factor of 2-3 depending on the photon energy. Even in production of radially excited Y'(2S) and Y"(3S) they can not be neglected and cause the 20-30% enhancement...
Is part of: arXiv.org, Jan 30, 2019
Identifier: 2331-8422 (E-ISSN)
• Several versions