2015/04/29 by José Miguel No, Jose Miguel No, No, Jose Miguel
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.1504.07840
4 Pages, 3 Figures, Contribution to the Proceedings of the 2nd Toyama International Workshop on Higgs as a Probe of New Physics HPNP2015
arxiv created 2015/04/29 · openalex publication_date 2015/04/29 · arxiv updated 2015/04/30 · 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 matter-antimatter asymmetry in the Universe. Such a phase transition does not occur in the Standard Model, while it becomes possible with the existence of a second Higgs doublet in Nature. We obtain the properties of the new scalars H0, A0 and H± that lead to such a phase transition, showing that its characteristic signature at LHC would be the observation of the decay A0 → H0 Z. We analyze the LHC search prospects for this decay in the ℓ ℓ bb and ℓ ℓ W+ W- final states, showing that either one is promising at the early stages of the 14 TeV run.