31 citations · 153 across the 15 of their papers we have counts for
16 papers
Light-by-light scattering at three loops in massless QCD and QED: amplitudes and cross sections
Piotr Bargiela, Amlan Chakraborty, Giulio Gambuti +1
We present the calculation of three-loop massless QCD and QED helicity amplitudes for light-by-light scattering. We make use of Lorentz tensor decomposition in the 't Hooft-Veltman…
Two-loop form factors for -wave quarkonium production and decay
Melih A. Ozcelik
We present the analytical results for the two-loop form factors needed for production and decay. We consider the two-loop corrections to the process $γγ\leftrightarrow {^…
Prospective report of the French QCD community to the ESPPU 2025 with respect to the program of the LHC Run 5 and beyond and future colliders at CERN
Carolina Arata, François Arleo, Benjamin Audurier +59
This document summarizes the prospective physics plans of the French QCD and Heavy-Ion community, including the experimental programs at the LHC Run 5 and beyond and future collide…
Linear power corrections to single top production and decay at the LHC in the narrow width approximation
Sergei Makarov, Kirill Melnikov, Paolo Nason +1
We consider top quark production and decay in the narrow width approximation and study if the polarisation effects, that manifest themselves in correlations of angular distribution…
Linear power corrections to top quark pair production in hadron collisions
Sergei Makarov, Kirill Melnikov, Paolo Nason +1
We compute, in the framework of renormalon calculus, the corrections to the production of pairs in hadron collisions under the assumption that $q…
Curing the high-energy perturbative instability of vector-quarkonium-photoproduction cross sections at order with high-energy factorisation
Jean-Philippe Lansberg, Maxim Nefedov, Melih A. Ozcelik
We cure the perturbative instability of the total-inclusive-photoproduction cross sections of vector -wave quarkonia observed at high photon-proton-collision energies ($\sqrt{s_…
Linear power corrections to single top production processes at the LHC
Sergei Makarov, Kirill Melnikov, Paolo Nason +1
We discuss the linear power corrections to the electroweak production of top quarks at the LHC using renormalon calculus. We show how such non-perturbative corrections can be obtai…
Two-loop form factors for pseudo-scalar quarkonium production and decay
Samuel Abreu, Matteo Becchetti, Claude Duhr +1
We present the analytic expressions for the two-loop form factors for the production or decay of pseudo-scalar quarkonia, in a scheme where the quarks are produced at threshold. We…
Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
Samuel Abreu, Matteo Becchetti, Claude Duhr +1
We compute the master integrals relevant for the two-loop corrections to pseudo-scalar quarkonium and leptonium production and decay. We present both analytic and high-precision nu…
Linear power corrections to shape variables in the three-jet region
Fabrizio Caola, Silvia Ferrario Ravasio, Giovanni Limatola +3
We use an abelian model to study linear power corrections which arise from infrared renormalons and affect event shapes in annihilation into hadrons. While previous studie…
White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction
Martin Hentschinski, Christophe Royon, Marco Alcazar Peredo +39
The goal of this whitepaper is to give a comprehensive overview of the rich field of forward physics. We discuss the occurrences of BFKL resummation effects in special final states…
Matching next-to-leading-order and high-energy-resummed calculations of heavy-quarkonium-hadroproduction cross sections
Jean-Philippe Lansberg, Maxim Nefedov, Melih A. Ozcelik
The energy dependence of the total hadroproduction cross section of pseudo-scalar quarkonia is computed via matching Next-to-Leading Order (NLO) Collinear-Factorisation (CF) result…
Revisiting NLO QCD corrections to total inclusive J/psi and Upsilon photoproduction cross sections in lepton-proton collisions
Alice Colpani Serri, Yu Feng, Carlo Flore +4
We revisit inclusive J/psi and Upsilon photoproduction at lepton-hadron colliders, namely in the limit when the exchanged photon is quasi real. Our computation includes the next-to…
Prospects for quarkonium studies at the high-luminosity LHC
Emilien Chapon, David d'Enterria, Bertrand Ducloue +48
Prospects for quarkonium-production studies accessible during the upcoming high-luminosity phases of the CERN Large Hadron Collider operation after 2021 are reviewed. Current exper…
Curing the unphysical behaviour of NLO quarkonium production at the LHC and its relevance to constrain the gluon PDF at low scales
Jean-Philippe Lansberg, Melih Arslan Ozcelik
We address the unphysical energy dependence of quarkonium-hadroproduction cross sections at Next-to-Leading Order (NLO) in alpha_S which we attribute to an over-subtraction in the…
Constraining gluon PDFs with quarkonium production
Melih Arslan Ozcelik
We explore how the positivity of the P_T-integrated eta_c-hadroproduction cross-section computed at NLO in alpha_s can set up constraints on the x-dependence of gluon PDFs at low s…