Details

Autor(en) / Beteiligte

• Dorsch, G. C.
• Huber, S. J.
• Mimasu, K.
• No, J. M.

Titel

Hierarchical versus degenerate 2HDM: The LHC run 1 legacy at the onset of run 2

Ist Teil von

• Physical review. D, 2016-06, Vol.93 (11), Article 115033

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Current discussions of the allowed two-Higgs-doublet model parameter space after LHC run 1 and the prospects for run 2 are commonly phrased in the context of a quasidegenerate spectrum for the new scalars. Here, we discuss the generic situation of a two-Higgs-doublet model with a nondegenerate spectrum for the new scalars. This is highly motivated from a cosmological perspective since it naturally leads to a strongly first-order electroweak phase transition that could explain the matter-antimatter asymmetry in the Universe. While constraints from measurements of Higgs signal strengths do not change, those from searches of new scalar states get modified dramatically once a nondegenerate spectrum is considered.