Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 21, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.211802
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Funding
- Science Technology and Facilities Council (STFC) [ST/J000477/1]
- People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7) [PIEF-GA-2013-625809]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES-Brazil) [0963/13-5]
- STFC [ST/J000477/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J000477/1] Funding Source: researchfish
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The existence of a second Higgs doublet in nature could lead to a cosmological first-order electroweak phase transition and explain the origin of the matter-antimatter asymmetry in the Universe. We obtain the spectrum and properties of the new scalars H-0, A(0), and H-+/- that signal such a phase transition and show that the observation of the decay A(0) -> ZH(0) at LHC would be a smoking gun signature of these scenarios. We analyze the LHC search prospects for this decay in the llb (b) over bar and llW(+)W(-) final states, arguing that current data may be sensitive to this signature in the former channel as well as there being great potential for a discovery in either channel at the very early stages of the 14 TeV run.
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