33 citations · 33 across the 11 of their papers we have counts for
12 papers · 1 filter
Pion gravitational form factors in an algebraic rainbow-ladder model
Jiayin Kang, Lei Chang
Within rainbow-ladder truncation, we identify three contributions to the pion's gravitational form factors---graviton coupling to the quark, to the gluon dressing the quark, and to…
Radiative charmonium decays in a contact-interaction model with dynamical quark anomalous magnetic moment
Yehan Xu, Zanbin Xing, Khépani Raya +1
The BESIII Collaboration has recently reported two measurements of the two-photon decay width of the meson. The 2024 result is significantly larger than most theoretical and…
A Direct Algebraic Pathway to Hadronic Observables in the Contact Model
Jiayin Kang, Zanbin Xing, Lei Chang
We present a novel algebraic framework for computing hadron properties directly within the contact interaction model. Utilizing Fierz transformations, the method recasts the Bethe-…
Electromagnetic structure of axial-vector mesons and implications for the muon
Zanbin Xing, Lei Chang, Khépani Raya
The electromagnetic structure of axial-vector mesons is investigated via elastic and two-photon transition form factors (TFFs). To this end, we employ a framework based on the Dyso…
Empirical Determination of the Kaon Distribution Amplitude
Lei Chang, Yu-Bin Liu, Khépani Raya +1
We propose a data-driven approach to extract the Kaon leading-twist distribution amplitude (DA) from empirical information on the ratio of the neutral-to-charged kaon electromagnet…
Bottomonium meson spectrum with quenched and unquenched quark models
M. Atif Sultan, Wei Hao, E. S. Swanson +1
An open question in hadronic phenomenology concerns the ``unquenching" effects of higher Fock space components on the leading Fock space description of hadrons. We address this by…
Neutral pion to two-photons transition form factor revisited
M. Atif Sultan, Jiayin Kang, Adnan Bashir +1
Based upon a combined formalism of Schwinger-Dyson and Bethe-Salpeter equations in quantum chromodynamics (QCD), we propose a QCD kindred algebraic model for the dressed quark prop…
Contact interaction treatment of for light-quark mesons
Yehan Xu, M. Atif Sultan, Khépani Raya +1
The and decays are evaluated within a Dyson-Schwinger and Bethe-Salpeter equations framework (here $\mathcal{V}=\{ρ^{\pm},K^{\star…
Gravitational form factors of pseudoscalar mesons in a contact interaction
M. Atif Sultan, Zanbin Xing, Khépani Raya +2
Given the unique role played by the gravitational form factors (GFFs) in unraveling the internal mechanics of hadrons, we examine the GFFs of ground state pseudoscalar mesons ,…
Bridging Electromagnetic and Gravitational Form Factors: Insights from LFHQCD
Xiaobin Wang, Zanbin Xing, Minghui Ding +2
We propose an efficacious approach to derive the generalized parton distributions for the pion and proton, based upon prior knowledge of their respective parton distribution functi…
QCD anomalies in electromagnetic processes: A solution to the puzzle
Zanbin Xing, Hao Dang, M. Atif Sultan +2
In this work, the form factor is calculated within the Dyson-Schwinger equations framework using a contact interaction model within the so-called modified rainbow ladder t…
Dynamical diquarks in the transition
Khépani Raya, L. X. Gutiérrez-Guerrero, Adnan Bashir +5
The transition is studied using a symmetry-preserving regularisation of a vectorvector contact interaction (SCI). The framewo…