8 papers
Distribution amplitudes of vector and axial-vector mesons in a nonperturbatively improved symmetry-preserving framework
Zhen-Ni Xu, Zhao-Qian Yao, Peng Cheng +1
Using continuum Schwinger-function methods with a nonperturbatively improved, symmetry-preserving kernel, we deliver predictions for the leading-twist light-front distribution ampl…
Helicity Dependent Distribution Functions of the Proton and and Baryons
Yang Yu, Peng Cheng, Hui-Yu Xing +2
Using continuum Schwinger function methods, a coherent set of predictions for proton, and distribution functions (DFs) has been made available -- both helicity dependent…
Insights into Nucleon Resonances via Continuum Schwinger Function Methods
Peng Cheng, Langtian Liu, Ya Lu +1
The first baryon resonance was discovered in the early 1950s. The Roper resonance joined the collection ten years later. Today, many baryon resonances are known and more are being…
Quark + Diquark Description of Nucleon Elastic Electromagnetic Form Factors
Peng Cheng, Zhao Qian Yao, Daniele Binosi +2
Working with a Poincaré-covariant quark + diquark, , Faddeev equation approach to nucleon structure, a refined symmetry preserving current for electron + nucleon elastic sca…
Distribution Functions of and Baryons
Yang Yu, Peng Cheng, Hui-Yu Xing +2
Treating baryons as quark + interacting-diquark bound states, a symmetry-preserving formulation of a vectorvector contact interaction (SCI) is used to deliver an extens…
Likelihood of a zero in the proton elastic electric form factor
Peng Cheng, Zhao-Qian Yao, Daniele Binosi +1
Working with the available data on the ratio of proton electric and magnetic form factors, , and independent of any model or theory of strong inter…
Baryon Spin and Emergent Hadron Mass
Peng Cheng
This thesis describes the use of Dyson-Schwinger equations (DSEs) to study baryon bound states in QCD. In this work, octet baryon axial form factors are calculated using a symmetry…
Contact interaction study of proton parton distributions
Yang Yu, Peng Cheng, Hui-Yu Xing +2
Using a symmetry-preserving formulation of a vectorvector contact interaction (SCI) and treating the proton as a quark + interacting-diquark bound state, whose structur…