Note on Custodial Symmetry in the Two-Higgs-Doublet Model
arXiv:1011.5228 · doi:10.1007/JHEP11(2011)030
Abstract
We present a simple and transparent method to study custodial symmetry in the Two-Higgs-Doublet Model. The method allows to formulate the basis independent, sufficient and necessary, conditions for the custodial symmetry of the scalar potential. The relation between the custodial transformation and CP is discussed and clarified.