The dark side of the electroweak phase transition
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Publication:406764
DOI10.1007/JHEP11(2010)108zbMATH Open1294.81333arXiv0910.1262WikidataQ59255263 ScholiaQ59255263MaRDI QIDQ406764
Subinoy Das, N. Weiner, Abhishek Kumar, Patrick J. Fox
Publication date: 29 August 2014
Published in: Journal of High Energy Physics (Search for Journal in Brave)
Abstract: Recent data from cosmic ray experiments may be explained by a new GeV scale of physics. In addition the fine-tuning of supersymmetric models may be alleviated by new O(GeV) states into which the Higgs boson could decay. The presence of these new, light states can affect early universe cosmology. We explore the consequences of a light (~ GeV) scalar on the electroweak phase transition. We find that trilinear interactions between the light state and the Higgs can allow a first order electroweak phase transition and a Higgs mass consistent with experimental bounds, which may allow electroweak baryogenesis to explain the cosmological baryon asymmetry. We show, within the context of a specific supersymmetric model, how the physics responsible for the first order phase transition may also be responsible for the recent cosmic ray excesses of PAMELA, FERMI etc. We consider the production of gravity waves from this transition and the possible detectability at LISA and BBO.
Full work available at URL: https://arxiv.org/abs/0910.1262
Unified quantum theories (81V22) Relativistic cosmology (83F05) Supersymmetric field theories in quantum mechanics (81T60) Gravitational waves (83C35)
Cites Work
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