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A cosmological pathway to testable leptogenesis

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arxiv 1804.07676 v1 pith:BP5ESOSR submitted 2018-04-20 hep-ph astro-ph.CO

Bhaskar Dutta , Chee Sheng Fong , Esteban Jimenez , Enrico Nardi This is my paper · ORCID
classification hep-phastro-ph.CO
keywords leptogenesiscosmologicaltemperaturesuniverseacceleratedclasscorrespondingcosmologies
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Leptogenesis could have occurred at temperatures much lower than generally thought, if the cosmological history of the Universe underwent a period of accelerated expansion, as is predicted for example in a class of scalar-tensor theories of gravitation. We discuss how non-standard cosmologies can open new pathways for low scale leptogenesis. Within these scenarios, direct tests of leptogenesis could also provide information on the very early times Universe evolution, corresponding to temperatures larger than the TeV.

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Cited by 1 Pith paper

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  1. Leptogenesis in Brane-modified cosmology: Signatures in primordial gravitational waves

    hep-ph 2026-08 conditional novelty 4.0 of 10

    With one or two stiff kination epochs before radiation domination, vanilla leptogenesis can produce the observed baryon asymmetry while imprinting a blue-tilted gravitational-wave spectrum, leaving a small DECIGO-visi...

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