2015/11/05 by Gláuber C. Dorsch, G. C. Dorsch, Dorsch, G. C. +9
Computer Science · Physics and Astronomy · #Cosmology and Gravitation Theories #Distributed and Parallel Computing Systems #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.1511.01689
4 pages, 3 figures, talk presented at the XXVIIth Rencontres de Blois, France, 31 May - 5 June 2015
arxiv created 2015/11/05 · openalex publication_date 2015/11/05 · arxiv updated 2015/11/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A cosmological first order electroweak phase transition could explain the origin of the cosmic matter-antimatter asymmetry. While it does not occur in the Standard Model, it becomes possible in the presence of a second Higgs doublet. In this context, we obtain the properties of the new scalars H0, A0 and H± leading to such a phase transition, showing that its key LHC signature would be the decay A0 → H0 Z, and we analyze the promising LHC search prospects for this decay in the ℓ ℓ bb and ℓ ℓ W+ W- final states. Finally, we comment on the impact of the A0 → H0 Z decay on current LHC searches for A0 decaying into SM particles.