@article{DennerJennichesLangetal.2016,
  author    = {Denner, Ansgar and Jenniches, Laura and Lang, Jean-Nicolas and Sturm, Christian},
  title     = {Gauge-independent (MS)over-bar renormalization in the 2HDM},
  series = {Journal of High Energy Physics},
  volume    = {09},
  journal   = {Journal of High Energy Physics},
  number    = {115},
  doi       = {10.1007/JHEP09(2016)115},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-166402},
  year      = {2016},
  abstract  = {We present a consistent renormalization scheme for the CP-conserving Two-Higgs-Doublet Model based on (MS)over-bar renormalization of the mixing angles and the soft-Z 2-symmetry-breaking scale M sb in the Higgs sector. This scheme requires to treat tadpoles fully consistently in all steps of the calculation in order to provide gauge-independent S-matrix elements. We show how bare physical parameters have to be defined and verify the gauge independence of physical quantities by explicit calculations in a general R ξ -gauge. The procedure is straightforward and applicable to other models with extended Higgs sectors. In contrast to the proposed scheme, the (MS)over-bar renormalization of the mixing angles combined with popular on-shell renormalization schemes gives rise to gauge-dependent results already at the one-loop level. We present explicit results for electroweak NLO corrections to selected processes in the appropriately renormalized Two-Higgs-Doublet Model and in particular discuss their scale dependence.},
  language  = {en}
}