3 papers
hep-ph2025
Use of flavor projection operators to construct baryon-meson scattering amplitudes in the expansion
Victor Miguel Banda Guzmán, Ruben Flores-Mendieta, Johann Hernandez
An flavor projection operator technique is implemented to construct the baryon-meson scattering amplitude in the framework of the expansion of QCD, where is t…
hep-th2025
Discontinuity Method for Evaluating Scattering Amplitudes within the Worldline Formalism
Victor Miguel Banda Guzmán
The worldline formalism offers an alternative framework to the standard diagrammatic approach in quantum field theory, grounded in first-quantized relativistic path integrals. Over…
hep-ph2025
One-loop off-shell quark-gluon vertex in arbitrary gauge and dimensions: a streamlined approach through the second-order formalism of QCD
Victor Miguel Banda Guzmán, Adnan Bashir
The standard Feynman rules used for perturbative calculations in quantum chromodynamics (QCD) are derived from a Lagrangian that is first-order in derivatives. It includes a three-…