Piotr Kotko
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View article: TEEC and azimuthal correlations in forward γ-hadron production in proton-proton and proton-lead collisions at LHC
TEEC and azimuthal correlations in forward γ-hadron production in proton-proton and proton-lead collisions at LHC Open
We investigate photon-hadron Transverse Energy-Energy Correlation (TEEC) and azimuthal correlations in the forward rapidity region for proton-proton and proton-lead collisions within the small $x$ saturation formalism based on the Color Gl…
View article: Physics with high-luminosity proton-nucleus collisions at the LHC<sup>∗</sup>
Physics with high-luminosity proton-nucleus collisions at the LHC<sup>∗</sup> Open
The physics case for the operation of high-luminosity proton-nucleus ( pA ) collisions at the CERN LHC is reviewed. The collection of (1–10 pb −1 ) of proton-lead ( p Pb) collisions at the LHC will provide unique physics opportunities in…
View article: Wilson line-based action for gluodynamics at the loop level
Wilson line-based action for gluodynamics at the loop level Open
A bstract We develop quantum corrections to the Wilson line-based action which we recently derived through a transformation that eliminates triple gluon vertices from the Yang-Mills action on the light-cone. The action efficiently computes…
View article: Wilson line-based action for gluodynamics at the loop level
Wilson line-based action for gluodynamics at the loop level Open
We develop quantum corrections to the Wilson line-based action which we recently derived through a transformation that eliminates triple gluon vertices from the Yang-Mills action on the light-cone. The action efficiently computes high mult…
View article: Wilson line-based action for gluodynamics at the quantum level
Wilson line-based action for gluodynamics at the quantum level Open
We recently derived a new action for gluodynamics by canonically transforming the Yang-Mills action on light-cone. The transformation elimated triple gluons vertices and replaced the gauge fields with Wilson lines. This greatly reduced the…
View article: Quantum correction to a new Wilson-line based action for Gluodynamics
Quantum correction to a new Wilson-line based action for Gluodynamics Open
We discuss a new classical action that enables efficient computation of the gluonic tree amplitudes but does not contain any triple point vertices. This new formulation is obtained via a canonical transformation of the light-cone Yang-Mill…
View article: Probing Gluon Saturation in Photon+Jet Production in \(pp\) and \(p\)Pb Collisions
Probing Gluon Saturation in Photon+Jet Production in \(pp\) and \(p\)Pb Collisions Open
View article: Wilson Line-based Action for Gluodynamics at the Quantum Level
Wilson Line-based Action for Gluodynamics at the Quantum Level Open
View article: Computing Multi-leg Scattering Amplitudes Using Light-cone Actions
Computing Multi-leg Scattering Amplitudes Using Light-cone Actions Open
View article: Quantum correction to a new Wilson line-based action for Gluodynamics
Quantum correction to a new Wilson line-based action for Gluodynamics Open
We discuss a new classical action that enables efficient computation of the gluonic tree amplitudes but does not contain any triple point vertices. This new formulation is obtained via a canonical transformation of the light-cone Yang-Mill…
View article: Searching for saturation in forward dijet production at the LHC
Searching for saturation in forward dijet production at the LHC Open
We review recent results for forward jests at the LHC and EIC as obtained within small-x Improved Transverse Momentum Dependent factorization (ITMD). In addition to elementary overview of various approaches to perturbative QCD at high ener…
View article: Forward $$\gamma $$+jet production in proton-proton and proton-lead collisions at LHC within the FoCal calorimeter acceptance
Forward $$\gamma $$+jet production in proton-proton and proton-lead collisions at LHC within the FoCal calorimeter acceptance Open
Using the small- x improved transverse momentum dependent factorization (ITMD), which, for a general two-to-two massless scattering can be proved within the color glass condensate (CGC) theory for transverse momenta of particles greater th…
View article: One-loop gauge invariant amplitudes with a space-like gluon
One-loop gauge invariant amplitudes with a space-like gluon Open
Nowadays the particle physics has entered an era where high precision calculations are required in order to compare the theoretical predictions with the experimental data. In this paper, we explicitly compute the virtual contributions for …
View article: Color reconnection effects in J/ψ hadroproduction
Color reconnection effects in J/ψ hadroproduction Open
View article: BFKL Pomeron loop contribution in diffractive photoproduction and inclusive hadroproduction of J/ψ and Υ
BFKL Pomeron loop contribution in diffractive photoproduction and inclusive hadroproduction of J/ψ and Υ Open
We analyze contributions to the heavy vector meson production with large transverse momentum in proton-proton and diffractive photon-proton scattering driven by an exchange of two Balitsky-Fadin-Kuraev-Lipatov Pomerons in the squared ampli…
View article: Searching for saturation in forward dijet production at the LHC
Searching for saturation in forward dijet production at the LHC Open
We review recent results for forward jests at the LHC and EIC as obtained within small-x Improved Transverse Momentum Dependent factorization (ITMD). In addition to elementary overview of various approaches to perturbative QCD at high ener…
View article: Forward $γ$+jet production in proton-proton and proton-lead collisions at LHC within the FoCal calorimeter acceptance
Forward $γ$+jet production in proton-proton and proton-lead collisions at LHC within the FoCal calorimeter acceptance Open
Using the small-$x$ Improved Transverse Momentum Dependent factorization (ITMD), which, for a general two-to-two massless scattering can be proved within the Color Glass Condensate (CGC) theory for transverse momenta of particles greater t…
View article: Color Reconnection Effects in $J/ψ$ Hadroproduction
Color Reconnection Effects in $J/ψ$ Hadroproduction Open
We investigate production of $J/ψ$ mesons in hadron-hadron collisions, defined as low invariant mass $c\bar{c}$ singlets produced in a mixture of perturbative and nonperturbative mechanisms provided by the PYTHIA Monte Carlo. We find that …
View article: White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction
White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction Open
The goal of this white paper is to give a comprehensive overview of the rich field of forward physics. We discuss the occurrences of BFKL re-summation effects in special final states, such as Mueller–Navelet jets, jet–gap–jets, and heavy q…
View article: Energy Evolution Equation for Elastic Scattering Amplitudes of Hadrons in \(b\)-space
Energy Evolution Equation for Elastic Scattering Amplitudes of Hadrons in \(b\)-space Open
View article: White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction
White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction Open
The goal of this white paper is to give a comprehensive overview of the rich field of forward physics. We discuss the occurrences of BFKL re-summation effects in special final states, such as Mueller–Navelet jets, jet–gap–jets, and heavy q…
View article: Dijet azimuthal correlations in p-p and p-Pb collisions at forward LHC calorimeters
Dijet azimuthal correlations in p-p and p-Pb collisions at forward LHC calorimeters Open
A bstract We present a state-of-the-art computation for the production of dijets in proton-proton and proton-lead collisions at the LHC, in forward rapidity domains covered by the ATLAS calorimeter and the planned FoCal extension of the AL…
View article: One-loop gauge invariant amplitudes with a space-like gluon
One-loop gauge invariant amplitudes with a space-like gluon Open
Nowadays the particle physics has entered an era where high precision calculations are required in order to compare the theoretical predictions with the experimental data. In this paper, we explicitly compute the virtual contributions for …
View article: One-Loop effective action approach to quantum MHV theory
One-Loop effective action approach to quantum MHV theory Open
View article: Evolution equation for elastic scattering of hadrons
Evolution equation for elastic scattering of hadrons Open
We turn high energy elastic scattering of hadrons into an initial value problem using an evolution equation based on the Regge Field Theory, which has a form of the complex nonlinear reaction–diffusion equation, with time being played by t…
View article: One-Loop Effective Action Approach to Quantum MHV Theory
One-Loop Effective Action Approach to Quantum MHV Theory Open
It is well known that the MHV action, i.e. the action containing all the maximally helicity violating vertices, is alone not sufficient for loop computations. In order to develop loop contributions systematically and to ensure that there a…
View article: Dijet production at EIC and interplay of Sudakov and saturation effects in Weizsacker-Williams TMD gluon distribution
Dijet production at EIC and interplay of Sudakov and saturation effects in Weizsacker-Williams TMD gluon distribution Open
We study production of dijets at the EIC using the small-x Improved Transverse Momentum Dependent factorization (ITMD), which is a framework based on the Color Glass Condensate theory. Dijet production in DIS is the simplest process direct…
View article: A new Wilson line-based classical action for gluodynamics
A new Wilson line-based classical action for gluodynamics Open
We develop a new classical action that in addition to \mathrm{MHV} vertices contains also \mathrm{N^kMHV} vertices, where 1\leq k \leq n-4 with n the number of external legs. The lowest order vertex is the four-point MHV vertex – there…
View article: Evolution equation for elastic scattering of hadrons
Evolution equation for elastic scattering of hadrons Open
We turn high energy elastic scattering of hadrons into an initial value problem using an evolution equation based on the Regge Field Theory, which has a form of the complex nonlinear reaction-diffusion equation, with time being played by t…
View article: Interplay of the CGC and TMD frameworks to all orders in kinematic twist
Interplay of the CGC and TMD frameworks to all orders in kinematic twist Open
A framework for an improved TMD (iTMD) factorization scheme at small x, involving off-shell perturbative subamplitudes, was recently developed as an interpolation between the TMD kt $\\ll$ Q regime and the BFKL kt<…