422 citations · 3.3k across the 84 of their papers we have counts for
32 papers · 1 filter
Three-dimensional imaging of hadrons with hard exclusive reactions: advances in experiment, theory, phenomenology, and lattice QCD
M. Boër, A. Camsonne, M. Constantinou +37
Generalized Parton Distributions (GPDs) have emerged as a powerful framework for exploring the internal structure of hadrons in terms of their partonic constituents. Over the past…
Toward an advanced phenomenology of transition distribution amplitudes
B. Pire, K. Semenov-Tian-Shansky, P. Sznajder +1
We introduce a new approach to modeling transition distribution amplitudes (TDAs) for the processes and . The modeling is flexible, constrained b…
Study of deeply virtual Compton scattering at the future Electron-Ion Collider
Elke-Caroline Aschenauer, Varvara Batozskaya, Salvatore Fazio +9
This study presents the impact of future measurements of deeply virtual Compton scattering (DVCS) with the ePIC detector at the electron-ion collider (EIC), currently under constru…
Timelike Compton scattering on a spin-0 target with kinematic twist-4 precision
V. Martinez-Fernandez, B. Pire, P. Sznajder +1
We calculate the kinematic twist-3 and 4 corrections to the leading order amplitude of timelike Compton scattering (TCS) on a (pseudo-)scalar target, in the recently developed fram…
Exclusive vector-quarkonium photoproduction at NLO in alpha_s in collinear factorisation with evolution of the generalised parton distributions and high-energy resummation
C. A. Flett, J. P. Lansberg, S. Nabeebaccus +3
We perform the first complete one-loop study of exclusive photoproduction of vector quarkonia off protons in Collinear Factorisation (CF) including the scale evolution of the Gener…
Exploring Baryon Resonances with Transition Generalized Parton Distributions: Status and Perspectives
Stefan Diehl, Kyungseon Joo, Kirill Semenov-Tian-Shansky +21
QCD gives rise to a rich spectrum of excited baryon states. Understanding their internal structure is important for many areas of nuclear physics, such as nuclear forces, dense mat…
Unraveling Generalized Parton Distributions Through Lorentz Symmetry and Partial DGLAP Knowledge
P. Dall'Olio, F. De Soto, C. Mezrag +5
Relying on the polynomiality property of generalized parton distributions, which roots on Lorentz covariance, we prove that it is enough to know them at vanishing- and low-skewness…
Can we measure Double DVCS at JLab and the EIC?
K. Deja, V. Martinez-Fernandez, B. Pire +2
Double deeply virtual Compton scattering (DDVCS) is a very precise tool for the nucleon tomography. Its measurement requires high luminosity electron beams and precise dedicated de…
Systematic description of hadron's response to non-local QCD probes: Froissart-Gribov projections in analysis of deeply virtual Compton scattering
Kirill M. Semenov-Tian-Shansky, Paweł Sznajder
We revisit the application of the Froissart-Gribov (FG) projections in the analysis of amplitudes for the Deeply Virtual Compton Scattering (DVCS), providing essential information…
Combining lattice QCD and phenomenological inputs on generalised parton distributions at moderate skewness
Michael Joseph Riberdy, Hervé Dutrieux, Cédric Mezrag +1
We present a systematic study demonstrating the impact of lattice QCD data on the extraction of generalised parton distributions (GPDs). For this purpose, we use a previously devel…
The case for an EIC Theory Alliance: Theoretical Challenges of the EIC
Raktim Abir, Igor Akushevich, Tolga Altinoluk +167
We outline the physics opportunities provided by the Electron Ion Collider (EIC). These include the study of the parton structure of the nucleon and nuclei, the onset of gluon satu…
Double DVCS as a window to the complete mapping of GPDs
K. Deja, V. Martinez-Fernandez, B. Pire +2
Double deeply virtual Compton scattering (DDVCS) is the process where an electron scatters off a nucleon and produces a lepton pair. The main advantage of this process in contrast…
Prospects for GPDs extraction with Double DVCS
K. Deja, V. Martinez-Fernandez, B. Pire +2
Double deeply virtual Compton scattering (DDVCS) is the process where an electron scatters off a nucleon and produces a lepton pair. The main advantage of this process in contrast…
Phenomenology of double deeply virtual Compton scattering in the era of new experiments
K. Deja, V. Martinez-Fernandez, B. Pire +2
We revisit the phenomenology of the deep exclusive electroproduction of a lepton pair, i.e. double deeply virtual Compton scattering (DDVCS), in view of new experiments planned in…
EpIC: novel Monte Carlo generator for exclusive processes
E. C. Aschenauer, V. Batozskaya, S. Fazio +6
We present the EpIC Monte Carlo event generator for exclusive processes sensitive to generalised parton distributions. EpIC utilises the PARTONS framework, which provides a flexibl…
Phenomenology of diphoton photoproduction at next-to-leading order
Oskar Grocholski, Bernard Pire, Paweł Sznajder +2
We develop the analysis of diphoton exclusive photoproduction in the kinematics where a collinear QCD factorization framework applies, namely nearly forward large invariant mass di…
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…
Artificial neural network modelling of generalised parton distributions
H. Dutrieux, O. Grocholski, H. Moutarde +1
We discuss the use of machine learning techniques in effectively nonparametric modelling of generalised parton distributions (GPDs) in view of their future extraction from experime…
Collinear factorization of diphoton photoproduction at next to leading order
Oskar Grocholski, Bernard Pire, Paweł Sznajder +2
We calculate in the framework of collinear factorization the amplitude for the photoproduction of a near forward large mass diphoton at leading twist and next to leading order (NLO…
NLO collinear factorization of large mass diphoton photoproduction amplitude
Oskar Grocholski, Bernard Pire, Paweł Sznajder +2
We calculate large mass diphoton exclusive photoproduction in the framework of collinear QCD factorization at next to leading order in αs and at leading twist. Collinear divergence…
Shadow generalized parton distributions: a practical approach to the deconvolution problem of DVCS
V. Bertone, H. Dutrieux, C. Mezrag +2
Deeply virtual Compton scattering (DVCS) attracts a lot of interest due to its sensitivity to generalized parton distributions (GPDs) which provide a rich access to the partonic st…
What do DVCS data tell us about TCS observables?
O. ~Grocholski, H. ~Moutarde, B. Pire +2
Deeply virtual Compton scattering (DVCS) and timelike Compton scattering (TCS) leading twist amplitudes are intimately related thanks to their analytic properties as a function of…
Impact of a positron beam at JLab on an unbiased determination of DVCS Compton Form Factors
H. Dutrieux, V. Bertone, H. Moutarde +1
The impact of potential future measurements of beam charge asymmetries on the current knowledge of Compton form factors is evaluated. Elaborating on the results of a global neural…
The deconvolution problem of deeply virtual Compton scattering
V. Bertone, H. Dutrieux, C. Mezrag +2
Generalised parton distributions are instrumental to study both the three-dimensional structure and the energy-momentum tensor of the nucleon, and motivate numerous experimental pr…