Skip to main content

Research Repository

Advanced Search

Assessing the tension between a black hole dominated early universe and leptogenesis

Perez-Gonzalez, Yuber F.; Turner, Jessica

Assessing the tension between a black hole dominated early universe and leptogenesis Thumbnail


Authors

Yuber F. Perez-Gonzalez



Abstract

We perform the first numerical calculation of the interplay between thermal and black hole induced leptogenesis, demonstrating that the right-handed neutrino surplus produced during the evaporation only partially mitigates the entropy dilution suffered by the thermal component. As such, the intermediate-mass regime of the right-handed neutrinos, 106 GeV ≲ MN ≲ 109 GeV, could not explain the observed baryon asymmetry even for fine-tuned scenarios if there existed a primordial black hole dominated era, consistent with initial black hole masses of Mi ≳ Oð1Þ kg and initial energy density fractions larger than β0 ≳ 10−6. A possible detection of the gravitational waves emitted from the same primordial black holes would place intermediate-scale thermal leptogenesis under tension

Citation

Perez-Gonzalez, Y. F., & Turner, J. (2021). Assessing the tension between a black hole dominated early universe and leptogenesis. Physical Review D, 104(10), https://doi.org/10.1103/physrevd.104.103021

Journal Article Type Article
Acceptance Date Oct 21, 2021
Online Publication Date Nov 16, 2021
Publication Date 2021
Deposit Date Feb 1, 2022
Publicly Available Date Mar 29, 2024
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 104
Issue 10
DOI https://doi.org/10.1103/physrevd.104.103021

Files

Published Journal Article (931 Kb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Published by the American Physical Society under the terms of
the Creative Commons Attribution 4.0 International license.
Further distribution of this work must maintain attribution to
the author(s) and the published article’s title, journal citation, and DOI.





You might also like



Downloadable Citations