161 citations · 495 across the 9 of their papers we have counts for
4 papers · 1 filter
Symmetry Preserving Contact Interaction Approaches: An Overview of Meson and Diquark Form Factors
L. X. Gutiérrez-Guerrero, Roger José Hernández-Pinto
We present an updated overview of the symmetry preserving Contact Interaction model in hadronic physics, developed a little over a decade ago to describe the mass spectrum and inte…
First Radial Excitations of Baryons in a Contact Interaction: Mass Spectrum
L. X. Gutiérrez-Guerrero, Alfredo Raya, L. Albino +1
We compute masses of twenty positive parity first radial excitations of spin- and baryons composed of u,d,s,c and b quarks in a quark-diquark picture within a contact in…
Constructing Scalar-Photon Three Point Vertex in Massless Quenched Scalar QED
L. Albino Fernandez-Rangel, A. Bashir, L. X. Gutierrez-Guerrero +1
Non perturbative studies of Schwinger-Dyson equations (SDEs) require their infnite, coupled tower to be truncated in order to reduce them to a practically solvable set. In this con…
Vacuum Polarization and Dynamical Chiral Symmetry Breaking: Phase Diagram of QED with Four-Fermion Contact Interaction
F. Akram, A. Bashir, L. X. Gutierrez-Guerrero +4
We study chiral symmetry breaking for fundamental charged fermions coupled electromagnetically to photons with the inclusion of four-fermion contact self-interaction term. We emplo…