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Implications of an Improved Neutron-Antineutron Oscillation Search for Baryogenesis: A Minimal Effective Theory Analysis.
- Source :
-
Physical review letters [Phys Rev Lett] 2018 Oct 26; Vol. 121 (17), pp. 171801. - Publication Year :
- 2018
-
Abstract
- Future neutron-antineutron (n-n[over ¯]) oscillation experiments, such as at the European Spallation Source and the Deep Underground Neutrino Experiment, aim to find first evidence of baryon number violation. We investigate implications of an improved n-n[over ¯] oscillation search for baryogenesis via interactions of n-n[over ¯] mediators, parametrized by an effective field theory (EFT). We find that even in a minimal EFT setup there is overlap between the parameter space probed by n-n[over ¯] oscillation and the region that can realize the observed baryon asymmetry of the Universe. The mass scales of exotic new particles are in the tera-electron-volt-peta-electron-volt regime, inaccessible at the LHC or its envisioned upgrades. Given the innumerable high energy theories that can match, or resemble, the minimal EFT that we discuss, future n-n[over ¯] oscillation experiments could probe many viable theories of baryogenesis beyond the reach of other experiments.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 121
- Issue :
- 17
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 30411946
- Full Text :
- https://doi.org/10.1103/PhysRevLett.121.171801