Gauss–Bonnet Chern–Simons gravitational wave leptogenesis
The gravitational Chern–Simons term coupled to an evolving axion is known to generate lepton number through the gravitational anomaly. We examine this leptogenesis scenario in the presence of the Gauss–Bonnet term over and above the gravitational Chern–Simons term. We find that the lepton production...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-02-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269318309468 |