26 de agosto de 2021 to 3 de septiembre de 2021
Europe/Madrid timezone

Cosmology meets functional QCD: First-order cosmic QCD transition induced by large lepton asymmetries

27 ago. 2021 13:45
15m
Talk in parallel session Cosmology and particle physics Hot topic Cosmology

Ponente

Isabel M. Oldengott (UC Louvain)

Descripción

The lepton flavour asymmetries of the Universe are observationally almost unconstrained before the onset of neutrino oscillations. We calculate the cosmic trajectory during the cosmic QCD epoch in the presence of large lepton flavour asymmetries. By including QCD thermodynamic quantities derived from functional QCD methods in our calculation our work reveals for the first time the possibility of a first-order cosmic QCD transition. We specify the required values of the lepton flavour asymmetries for which a ?rst-order transition occurs for a number of different benchmark scenarios.

Reference to paper (DOI or arXiv) 2106.11991

Autores primarios

Isabel M. Oldengott (UC Louvain) Dr. Fei Gao (Heidelberg University)

Materiales de la presentación

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