422 citations · 2.2k across the 39 of their papers we have counts for
11 papers · 1 filter
Nucleon Parton Distribution Amplitude: A scalar diquark picture
Cédric Mezrag, Jorge Segovia, Minghui Ding +2
We report progress on the development of Perturbative Integral Representation Ansätze to compute the nucleon Faddeev Wave function, using an explicit quark-diquark picture. Our for…
Pion and kaon valence quark distribution functions from Dyson-Schwinger equations
Chao Shi, Cedric Mezrag, Hong-shi Zong
Using realistic quark propagators and meson Bethe-Salpeter amplitudes based on the Dyson-Schwinger equations, we calculate the pion and kaon's valence parton distribution functions…
Process-independent effective coupling. From QCD Green's functions to phenomenology
Jose Rodríguez-Quintero, Daniele Binosi, Cédric Mezrag +2
This article reports on a very recent proposal for a new type of process-independent QCD effective charge [Phys.Rev.D96(2017)054026] defined, as an anologue of the Gell-Mann-Low ef…
Nucleon viewed as a Borromean Bound-State
Jorge Segovia, Cédric Mezrag, Lei Chang +1
We explain how the emergent phenomenon of dynamical chiral symmetry breaking ensures that Poincaré covariant analyses of the three valence-quark scattering problem in continuum qua…
Parton distribution amplitudes: revealing diquarks in the proton and Roper resonance
Cedric Mezrag, Jorge Segovia, Lei Chang +1
We present the first quantum field theory calculation of the pointwise behaviour of the leading-twist parton distribution amplitudes (PDAs) of the proton and its lightest radial ex…
Off-shell persistence of composite pions and kaons
Si-Xue Qin, Chen Chen, Cedric Mezrag +1
In order for a Sullivan-like process to provide reliable access to a meson target as becomes spacelike, the pole associated with that meson should remain the dominant feature o…
Process-independent strong running coupling
Daniele Binosi, Cedric Mezrag, Joannis Papavassiliou +2
We unify two widely different approaches to understanding the infrared behaviour of quantum chromodynamics (QCD), one essentially phenomenological, based on data, and the other com…
Emergent phenomena and partonic structure in hadrons
Craig D. Roberts, Cedric Mezrag
Modern facilities are poised to tackle fundamental questions within the Standard Model, aiming to reveal the nature of confinement, its relationship to dynamical chiral symmetry br…
From Bethe-Salpeter Wave Functions to Generalised Parton Distributions
C. Mezrag, H. Moutarde, J. Rodriguez-Quintero
We review recent works on the modelling of Generalised Parton Distributions within the Dyson-Schwinger formalism. We highlight how covariant computations, using the impulse approxi…
Sketching the pion's valence-quark generalised parton distribution
C. Mezrag, L. Chang, H. Moutarde +4
In order to learn effectively from measurements of generalised parton distributions (GPDs), it is desirable to compute them using a framework that can potentially connect empirical…
Basic features of the pion valence-quark distribution function
Lei Chang, Cédric Mezrag, Hervé Moutarde +3
The impulse-approximation expression used hitherto to define the pion's valence-quark distribution function is flawed because it omits contributions from the gluons which bind quar…