20-22 May 2009
Unidad de Seminarios
Mexico/General timezone
Contribution
Dynamical mass generation including the Chern-Simons term in QED3
Speakers
- Mr. Saúl SÁNCHEZ MADRIGAL
Primary authors
- Mr. Saúl SÁNCHEZ MADRIGAL (Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo)
Co-authors
- Dr. Alfredo RAYA MONTAÑO (Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo)
- Dr. Adnan BASHIR (Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo)
Abstract content
We study the gauge covariance of the fermion propagator in Maxwell–Chern– Simons planar quantum electrodynamics (QED3 ) considering four-component spinors with parity-even and parity-odd mass terms for both fermions and photons. Starting with its tree-level expression in the Landau gauge, we derive a non-perturbative expression for this propagator in an arbitrary covariant gauge by means of its Landau–Khalatnikov–Fradkin transformation (LKFT). We compare our findings in the weak coupling regime with the direct one-loop calculation of the two-point Green function and observe perfect agreement up to a gauge-independent term. We also reproduce results derived in earlier works as special cases of our findings.