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- W3215849260 abstract "In this paper, we study the simultaneous evolution of baryon asymmetry and hypermagnetic field amplitude assuming an early matter domination. We contrast our results to the conventional case where radiation domination during early universe is assumed. We show that the baryon asymmetry and the hypermagntic field amplitude can change by orders of magnitude if we assume a non-standard history of cosmology. That is because the Hubble rate determines which processes are efficient. We find that a change in Hubble rate can have a significant impact on when the weak sphalerons become active. As a result of a change in the evolution of baryonic asymmetry, alters the evolution of hypermagnetic field amplitude. It is known that if the hypermagnetic field amplitude is large enough, it can save the baryon asymmetry from diminishing. We show that whether a small seed of hypermagnetic field amplitude can be amplified to a large enough value will strongly depend on the history of cosmology." @default.
- W3215849260 created "2021-12-06" @default.
- W3215849260 creator A5018892450 @default.
- W3215849260 creator A5076927215 @default.
- W3215849260 date "2021-12-28" @default.
- W3215849260 modified "2023-10-16" @default.
- W3215849260 title "Magnetogenesis from baryon asymmetry during an early matter dominated era" @default.
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- W3215849260 doi "https://doi.org/10.1103/physrevd.104.115030" @default.
- W3215849260 hasPublicationYear "2021" @default.