Journal
PHYSICAL REVIEW D
Volume 93, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.93.115033
Keywords
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Funding
- Science Technology and Facilities Council [ST/L000504/1]
- People Programme (Marie Curie Actions) of the European Union Seventh Framework Programme under REA [PIEF-GA-2013-625809]
- German Science Foundation under the Collaborative Research Center Particles, Strings and the Early Universe [(SFB) 676]
- Science and Technology Facilities Council [ST/L000504/1, ST/J000477/1] Funding Source: researchfish
- STFC [ST/L000504/1, ST/J000477/1] Funding Source: UKRI
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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.
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