A Twisted Custodial Symmetry in the Two-Higgs-Doublet Model
| dc.creator | Gerard, J. -M. | |
| dc.creator | Herquet, M. | |
| dc.date | 2007-03-05 | |
| dc.date.accessioned | 2026-07-07T11:02:49Z | |
| dc.date.available | 2026-07-07T11:02:49Z | |
| dc.description | In the Standard Model for electroweak interactions, the Higgs sector is known to display a "custodial" symmetry protecting the mass relation m_{W^\pm}^2=m_{W_3}^2 from large corrections. When considering extensions of the scalar sector, this symmetry has to be introduced by hand in order to pass current electroweak precision tests in a natural way. In this Letter we implement a generalized custodial symmetry in the two-Higgs-doublet model. Assuming the invariance of the potential under CP transformations, we prove the existence of a new custodial scenario characterized by m_{H^\pm}^2=m_{H^0}^2 instead of m_{H^\pm}^2=m_{A^0}^2. Consequently the pseudoscalar A^0 may be much lighter than the charged H^\pm, giving rise to interesting phenomenology. | |
| dc.description | 4 pages, RevTeX4 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0703051 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0703051 | |
| dc.identifier | Phys.Rev.Lett.98:251802,2007 | |
| dc.identifier | doi:10.1103/PhysRevLett.98.251802 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188379 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | A Twisted Custodial Symmetry in the Two-Higgs-Doublet Model | |
| dc.type | text |