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hep-ph2026
QED vertex and anomalous magnetic moment in the presence of a magnetic field
Alejandro Ayala, Enrique Muñoz, Marcelo Loewe +2
We compute the fermion-photon vertex in QED in the presence of a constant and uniform magnetic background up to one-loop order. We show that even at tree-level, the vertex is modif…
hep-th2026
Electric field fluctuations and renormalization group flows in a self-interacting scalar field theory
Melanie Martínez, Enrique Muñoz, Marcelo Loewe
We consider a self interacting charged scalar field represented by the complex λϕ4 model, embedded in a background electric field exhibiting classical stochastic fluctuations. We s…