| Texto completo | |
| Autor(es): |
Albino, L.
;
Bashir, A.
;
Mizher, A. J.
;
Raya, A.
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW D; v. 106, n. 9, p. 12-pg., 2022-11-10. |
| Resumo | |
We study the effect of a refined electron-photon vertex on the dynamical breaking of chiral symmetry in reduced quantum electrodynamics. We construct an educated ansatz for this vertex that satisfies the required discrete symmetries under parity, time reversal, and charge conjugation operations. Furthermore, it reproduces its asymptotic perturbative limit in the weak coupling regime and ensures the massless electron propagator is multiplicatively renormalizable in its leading logarithmic expansion. Employing this vertex ansatz, we solve the gap equation to compute dynamically generated electron mass whose dependence on the electromagnetic coupling is found to satisfy Miransky scaling law. We also investigate the gauge dependence of this dynamical mass as well as that of the critical coupling above which chiral symmetry is dynamically broken. As a litmus test of our vertex construction, both these quantities are rendered virtually gauge independent within a certain interval of values considered for the covariant gauge parameter. (AU) | |
| Processo FAPESP: | 16/12705-7 - Campos magnéticos em colisões de íons pesados: efeitos em observáveis |
| Beneficiário: | Ana Júlia Silveira Mizher |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |