CP-violation in production of heavy neutrinos from bubble collisions
Universität Hamburg · Deutsches Elektronen-Synchrotron DESY · +4 more institutions
Abstract
A bstract First order phase transitions (FOPT) in the early Universe can be powerful emitters of both relativistic and heavy particles, upon the collision of ultra-relativistic bubble shells. If the particles coupling to the bubble wall have CP-violating interactions, the same collision process can also create a local lepton or baryon charge. This CP-violation can originate from different channels, which have only been partially addressed in the literature. We present a systematic analysis of the different channels inducing CP-violation during bubble collisions: 1) the decay of heavy particles 2) the production of heavy particles and 3) the production of light and relativistic Standard Model (SM) particles. As…
Citation impact
- FWCI
- 59.07
- Percentile
- 99%
- References
- 108
Authors
3Topics & keywords
- Baryon asymmetry
- Neutrino
- Lepton
- Dark matter
- Standard Model (mathematical formulation)
- Lepton number
- Baryon number
- MAJORANA