626 citations · 14.4k across the 220 of their papers we have counts for
9 papers · 2 filters
Nucleon tensor charges and electric dipole moments
Mario Pitschmann, Chien-Yeah Seng, Craig D. Roberts +1
A symmetry-preserving Dyson-Schwinger equation treatment of a vector-vector contact interaction is used to compute dressed-quark-core contributions to the nucleon -term and tens…
Bridging a gap between continuum-QCD and ab initio predictions of hadron observables
Daniele Binosi, Lei Chang, Joannis Papavassiliou +1
Within contemporary hadron physics there are two common methods for determining the momentum-dependence of the interaction between quarks: the top-down approach, which works toward…
Nucleon and elastic and transition form factors
Jorge Segovia, Ian C. Cloet, Craig D. Roberts +1
We compute nucleon and Delta elastic and transition form factors, and compare predictions made using a framework built upon a Faddeev equation kernel and interaction vertices that…
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…
Flavour symmetry breaking in the kaon parton distribution amplitude
Chao Shi, Lei Chang, Craig D. Roberts +3
We compute the kaon's valence-quark (twist-two parton) distribution amplitude (PDA) by projecting its Poincare'-covariant Bethe-Salpeter wave-function onto the light-front. At a sc…
Parton distribution amplitudes of light vector mesons
Fei Gao, Lei Chang, Yu-Xin Liu +2
A rainbow-ladder truncation of QCD's Dyson-Schwinger equations is used to calculate rho- and phi-meson valence-quark (twist-two parton) distribution amplitudes (PDAs) via a light-f…
Ward-Green-Takahashi identities and the axial-vector vertex
Si-Xue Qin, Craig D. Roberts, Sebastian M. Schmidt
The colour-singlet axial-vector vertex plays a pivotal role in understanding dynamical chiral symmetry breaking and numerous hadronic weak interactions, yet scant model-independent…
Images of the Origin of Mass
Craig D. Roberts
Recent years have brought considerable progress with studies of the bound-state problem in continuum QCD. A small part of that made with Dyson Schwinger equations is highlighted he…
Zero mode in a strongly coupled quark gluon plasma
Fei Gao, Si-Xue Qin, Yu-Xin Liu +2
In connection with massless two-flavour QCD, we analyse the chiral symmetry restoring phase transition using three distinct gluon-quark vertices and two different assumptions about…