626 citations · 14.4k across the 220 of their papers we have counts for
60 papers · 1 filter
Constraining the pion distribution amplitude using Drell-Yan reactions on a proton
H. -Y. Xing, M. Ding, Z. -F. Cui +3
Using a reaction model that incorporates pion bound state effects and continuum results for proton parton distributions and the pion distribution amplitude, , we deliver param…
All-Orders Evolution of Parton Distributions: Principle, Practice, and Predictions
Pei-Lin Yin, Yin-Zhen. XuID, Zhu-Fang Cui +2
Parton distribution functions (DFs) are defining expressions of hadron structure. Exploiting the role of effective charges in quantum chromodynamics, an algebraic scheme is describ…
-baryon axialvector and pseudoscalar form factors, and associated PCAC relations
Pei-Lin Yin, Chen Chen, Christian S. Fischer +1
A quark+diquark Faddeev equation treatment of the baryon bound state problem in Poincaré-invariant quantum field theory is used to deliver parameter-free predictions for all six $Δ…
Polarised parton distribution functions and proton spin
Peng Cheng, Yang Yu, Hui-Yu Xing +3
Supposing there exists an effective charge which defines an evolution scheme for both unpolarised and polarised parton distribution functions (DFs) that is all-orders exact and usi…
Hadron Structure using Continuum Schwinger Function Methods
Craig D. Roberts
The vast bulk of visible mass emerges from nonperturbative dynamics within quantum chromodynamics (QCD) -- the strong interaction sector of the Standard Model. The past decade has…
Empirical Determination of the Pion Mass Distribution
Yin-Zhen Xu, Khépani Raya, Zhu-Fang Cui +2
Existing pion+nucleus Drell-Yan and electron+pion scattering data are used to develop ensembles of model-independent representations of the pion generalised parton distribution (GP…
Nucleon Resonance Electroexcitation Amplitudes and Emergent Hadron Mass
Daniel S. Carman, Ralf W. Gothe, Victor I. Mokeev +1
Understanding the strong interaction dynamics that govern the emergence of hadron mass (EHM) represents a challenging open problem in the Standard Model. In this paper we describe…
Origin of the Proton Mass
Craig D. Roberts
Atomic nuclei lie at the core of everything visible; and at the first level of approximation, their atomic weights are simply the sum of the masses of all the neutrons and protons…
Emergence of Hadron Mass and Structure
Minghui Ding, Craig D. Roberts, Sebastian M. Schmidt
Visible matter is characterised by a single mass scale; namely, the proton mass. The proton's existence and structure are supposed to be described by quantum chromodynamics (QCD);…
Contact interaction analysis of octet baryon axialvector and pseudoscalar form factors
Peng Cheng, Fernando E. Serna, Zhao-Qian Yao +3
Octet baryon axial, induced pseudoscalar, and pseudoscalar form factors are computed using a symmetry-preserving treatment of a vectorvector contact interaction (SCI),…
Bethe-Salpeter kernel and properties of strange-quark mesons
Zhen-Ni Xu, Zhao-Qian Yao, Si-Xue Qin +2
Focusing on the continuum meson bound-state problem, a novel method is used to calculate closed-form Bethe-Salpeter kernels that are symmetry consistent with any reasonable gluon-q…
Nucleon axial form factor at large momentum transfers
Chen Chen, Craig D. Roberts
Using a Poincaré-covariant quark+diquark Faddeev equation and related symmetry-preserving weak interaction current, we deliver parameter-free predictions for the nucleon axialvecto…
Heavy + heavy and heavy + light pseudoscalar to vector semileptonic transitions
Hui-Yu Xing, Zhen-Ni Xu, Zhu-Fang Cui +2
Using a symmetry-preserving regularisation of a vectorvector contact interaction (SCI), we complete a systematic treatment of twelve semileptonic transitions with vector me…
Fresh look at experimental evidence for odderon exchange
Zhu-Fang Cui, Daniele Binosi, Craig D. Roberts +2
Theory suggests that in high-energy elastic hadron+hadron scattering, -channel exchange of a family of colourless crossing-odd states -- the odderon -- may generate differences…
Hadron and light nucleus radii from electron scattering
Zhu-Fang Cui, Daniele Binosi, Craig D. Roberts +1
Conceptually, radii are amongst the simplest Poincaré-invariant properties that can be associated with hadrons and light nuclei. Accurate values of these quantities are necessary s…
Composition of low-lying -baryons
Langtian Liu, Chen Chen, Ya Lu +2
A Poincaré-covariant quark+diquark Faddeev equation is used to develop insights into the structure of the four lightest baryon multiplets. W…
Proton and pion distribution functions in counterpoint
Ya Lu, Lei Chang, Khépani Raya +2
Working with proton and pion valence distribution functions (DFs) determined consistently at the same, unique hadron scale and exploiting the possibility that there is an effective…
Parton distributions of light quarks and antiquarks in the proton
Lei Chang, Fei Gao, Craig D. Roberts
An algebraic Ansatz for the proton's Poincaré-covariant wave function, which includes both scalar and pseudovector diquark correlations, is used to calculate proton valence, sea, a…
Concerning pion parton distributions
Z. -F. Cui, M. Ding, J. M. Morgado +7
Analyses of the pion valence-quark distribution function (DF), , which explicitly incorporate the behaviour of the pion wave function prescribed by quantum chromodynami…
Semileptonic transitions: ; ; ; and
Zhao-Qian Yao, Daniele Binosi, Zhu-Fang Cui +1
Continuum Schwinger function methods for the strong-interaction bound-state problem are used to arrive at a unified set of parameter-free predictions for the semileptonic ,…
Revealing pion and kaon structure via generalised parton distributions
Khepani Raya, Zhu-Fang Cui, Lei Chang +3
Clear windows onto emergent hadron mass (EHM) and modulations thereof by Higgs boson interactions are provided by observable measures of pion and kaon structure, many of which are…
Pauli radius of the proton
Zhu-Fang Cui, Daniele Binosi, Craig D. Roberts +1
Using a procedure based on interpolation via continued fractions supplemented by statistical sampling, we analyse proton magnetic form factor data obtained via electron+proton scat…
Pion charge radius from pion+electron elastic scattering data
Zhu-Fang Cui, Daniele Binosi, Craig D. Roberts +1
With the aim of extracting the pion charge radius, we analyse extant precise pion+electron elastic scattering data on GeV using a method based on inter…
Valence quark ratio in the proton
Zhu-Fang Cui, Fei Gao, Daniele Binosi +3
Beginning with precise data on the ratio of structure functions in deep inelastic scattering (DIS) from He and H, collected on the domain , where $…