Leptogenesis as a common origin for matter and dark matter
By H. An, Shao-Long Chen, R. Mohapatra, Yue Zhang. 2009
191 citations recorded by the source corpus.
We propose a model of asymmetric dark matter (DM) where the dark sector is an identical copy of both forces and matter of the standard model (SM) as in the mirror universe models discussed in literature. In addition to being connected by gravity, the SM and DM sectors are also connected at high temperature by a common set of heavy right-handed Majorana neutrinos via their Yukawa couplings to leptons and Higgs bosons. The lightest nucleon in the dark (mirror) sector is a candidate for dark matter. The out of equilibrium decay of right-handed neutrino produces equal lepton asymmetry in both sectors via resonant leptogenesis which then get converted to baryonic and dark baryonic matter. The dark baryon asymmetry due to higher dark nucleon masses leads to higher dark matter density compared to the familiar baryon density that is observed. The standard model neutrinos in this case acquire masses from the inverse seesaw mechanism. A kinetic mixing between the U(1) gauge fields of the two sectors is introduced to guarantee the success of Big-Bang Nucleosynthesis.
Subfields: Artificial Intelligence, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/19e3ac32f579063c4cd1ef613b5ca82b1b5b95ba
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In Artificial Intelligence
- Alexey Boyarsky
- Oleg Ruchayskiy
- M. Drewes
- N. Craig
- Florian Staub
- Michael Spannowsky
- J. Jaeckel
- R. Essig
In Nuclear and High Energy Physics
Citations in the corpus
- Heavy Neutral Leptons at FASER (2018, background): “Such a possibility with additional connections to DM and leptogenesis has been discussed in [91] for the SM extended by its mirror sector.”
- Gravitational probes of dark matter physics (2017, background): “This requires annihilation cross sections in the early Universe at least as large as those of a thermal relic [52], and so Λ−1ADM & 5× 10 −5 GeV−1.”
- A facility to search for hidden particles at the CERN SPS: the SHiP physics case (2015, background): “Both the matter and dark matter asymmetry originates from conventional high scale leptogenesis mediated by the heavy right handed neutrino connecting both sectors [509].”