Leptogenesis via a varying Weinberg operator: a semi-classical approach
- Durham Univ., Durham (United Kingdom)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
In this Letter, we introduce leptogenesis via a varying Weinberg operator from a semi-classical perspective. This mechanism is motivated by the breaking of an underlying symmetry which triggers a phase transition that causes the coupling of the Weinberg operator to become dynamical. Consequently, a lepton anti-lepton asymmetry arises from the interference of the Weinberg operator at two different spacetime points. Using this semi-classical approach, we treat the Higgs as a background field and show a reflection asymmetry between the leptons and anti-leptons is generated in the vicinity of the bubble wall. Here, we solve the equations of motion of the lepton and anti-lepton quasiparticles to obtain the final lepton asymmetry.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1471726
- Report Number(s):
- arXiv:1808.00475; IPPP/18/66; FERMILAB-PUB-18-330-T; 1684848
- Journal Information:
- Chinese Physics. C, High Energy Physics and Nuclear Physics, Vol. 43, Issue 3; ISSN 1674-1137
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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Bose-Einstein condensation, spontaneous symmetry breaking, and gauge theories
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