• C G Honorato

Articles written in Pramana – Journal of Physics

• $U_{e}(1)$-covariant $R_{\xi}$ gauge for the two-Higgs doublet model

A $U_{e}(1)$-covariant $R_{\xi}$ gauge for the two-Higgs doublet model based on BRST (Becchi–Rouet–Stora–Tyutin) symmetry is introduced. This gauge allows one to remove a significant number of nonphysical vertices appearing in conventional linear gauges, which greatly simplifies the loop calculations, since the resultant theory satisfies QED-like Ward identities. The presence of four ghost interactions in these types of gauges and their connection with the BRST symmetry are stressed. The Feynman rules for those new vertices that arise in this gauge, as well as for those couplings already present in the linear $R_{\xi}$ gauge but that are modified by this gauge-fixing procedure, are presented.

• # Pramana – Journal of Physics

Volume 96, 2022
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019