250 citations · 1.3k across the 47 of their papers we have counts for
50 papers
Scheme Transformations in Non-Linear QCD Evolution: Towards a Stable NLO BK Equation
Renaud Boussarie, Paul Caucal, Piotr Korcyl +1
High-energy QCD evolution at NLO suffers from large collinear logarithms that make the perturbative expansion of the Balitsky-Kovchegov (BK) equation unstable. We develop a systema…
Deeply virtual meson production at HERA and at the EIC within the Color Glass Condensate EFT
Renaud Boussarie, Luigi Delle Rose, Michael Fucilla +3
Continuing our previous study of Deeply Virtual Meson Production (DVMP) at twist-3 accuracy, we derive compact expressions for all helicity amplitudes. We perform a phenomenologica…
2025 EIC-France Workshop: Physics Highlights and Perspectives
F. Arleo, V. Bertone, J. Bettane +75
This document presents a synthesis of the theory contributions and discussions from the 2nd EIC-France Workshop, held at IJCLab (Orsay) on 1-3 December 2025. The workshop brought t…
Rotating the Color Glass Condensate
Renaud Boussarie, Paul Caucal, Piotr Korcyl +1
High-energy QCD evolution beyond leading order suffers from instabilities driven by large collinear logarithms. We present a framework, consistent with the standard high-energy ope…
Collinear Structure of Nonlinear Small- Evolution
Renaud Boussarie, Paul Caucal, Yacine Mehtar-Tani
We introduce a novel approach to high-energy QCD factorization of cross-sections for processes involving a dilute projectile and a dense target. Our method preserves the factorizat…
Revealing chiral-odd two-meson generalized distribution amplitudes in reactions
Shohini Bhattacharya, Renaud Boussarie, Bernard Pire +1
We demonstrate that chiral-odd dimeson generalized distribution amplitudes (CO-GDAs) -- nonperturbative objects encoding the transition of a quark-antiquark pair into two mesons --…
Exclusive leptoproduction of a light vector meson at the twist-3 in a GTMD framework
Renaud Boussarie, Michael Fucilla, Lech Szymanowski +1
We provide the most general description of the exclusive leptoproduction of a light vector meson, at high center-of-mass energy, within the CGC/shockwave formalism. We keep a twist…
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…
Gluon tomography through diffractive processes in a saturation framework
Renaud Boussarie, Michael Fucilla, Andrey V. Grabovsky +3
We discuss a series of results aimed at bringing saturation physics and gluon tomography into an era of precision. In particular, the NLO treatment of diffractive: 1) exclusive dij…
Probing gluonic saturation in deeply virtual meson production beyond leading power
Renaud Boussarie, Michael Fucilla, Lech Szymanowski +1
Exclusive diffractive meson production represents a golden channel for investigating gluonic saturation inside nucleons and nuclei. In this letter, we settle a systematic framework…
Twist corrections to exclusive vector meson production in a saturation framework
Renaud Boussarie, Michael Fucilla, Lech Szymanowski +1
We develop a framework combining the higher-twist formalism of exclusive processes in the channel with the semi-classical effective description of small- physics in the …
Exploring orbital angular momentum and spin-orbit correlation for gluons at the Electron-Ion Collider
Shohini Bhattacharya, Renaud Boussarie, Yoshitaka Hatta
In our previous work [Phys. Rev. Lett. 128, 182002 (2022)], we introduced a pioneering observable aimed at experimentally detecting the orbital angular momentum (OAM) of gluons. Ou…
Spin-orbit entanglement in the Color Glass Condensate
Shohini Bhattacharya, Renaud Boussarie, Yoshitaka Hatta
We compute the spin-orbit correlations of quarks and gluons at small- and show that the helicity and the orbital angular momentum of individual partons are strongly anti-aligned…
Low and moderate gluon contribution to exclusive Compton scattering processes
Renaud Boussarie, Yacine Mehtar-Tani
We revisit the high energy semi-classical description of the exclusive processes DVCS, TCS, and Double DVCS by explicitly keeping track of the Feynman dependence in both the ha…
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…
Snowmass 2021 White Paper: Electron Ion Collider for High Energy Physics
R. Abdul Khalek, U. D'Alesio, M. Arratia +105
Electron Ion Collider (EIC) is a particle accelerator facility planned for construction at Brookhaven National Laboratory on Long Island, New York by the United States Department o…
Signature of the gluon orbital angular momentum
Shohini Bhattacharya, Renaud Boussarie, Yoshitaka Hatta
We propose a novel observable for the experimental detection of the gluon orbital angular momentum (OAM) that constitutes the proton spin sum rule. We consider longitudinal double…
Gluon-mediated inclusive Deep Inelastic Scattering from Regge to Bjorken kinematics
Renaud Boussarie, Yacine Mehtar-Tani
We revisit high energy factorization for gluon mediated inclusive Deep Inelastic Scattering (DIS) for which we propose a new semi-classical approach that accounts systematically fo…
A novel formulation of the unintegrated gluon distribution for DIS
Yacine Mehtar-Tani
In this talk, we revisit inclusive DIS in the small limit and derive a new factorization formula that accounts for leading powers in both Bjorken and Regge limits. In this semi…
The importance of kinematic twists and genuine saturation effects in dijet production at the Electron-Ion Collider
Renaud Boussarie, Heikki Mäntysaari, Farid Salazar +1
We compute the differential yield for quark anti-quark dijet production in high-energy electron-proton and electron-nucleus collisions at small as a function of the relative mo…
On gauge invariance of transverse momentum dependent distributions at small-x
Renaud Boussarie, Yacine Mehtar-Tani
Transverse momentum dependent (TMD) distributions at small x exhibit a rich infinite twist structure that encompasses the leading twist (partonic) distributions as well as the phys…
A novel formulation of the unintegrated gluon distribution for DIS
Renaud Boussarie, Yacine Mehtar-Tani
We provide a semi-classical description of the inclusive gluon induced Deep Inelastic Scattering cross section in a way that accounts for the leading powers in both the Regge and B…
A QCD analysis of near-threshold quarkonium leptoproduction at large photon virtualities
Renaud Boussarie, Yoshitaka Hatta
We propose a novel approach to compute the cross section of near-threshold and production in electron-proton scattering at large photon virtualities based on an ope…
On gauge invariance of transverse momentum dependent distributions at small x
Renaud Boussarie, Yacine Mehtar-Tani
The interplay between the small x limit of QCD amplitudes and QCD factorization at moderate x has been studied extensively in recent years. It was finally shown that semiclassical…