Three-flavored nonresonant leptogenesis at intermediate scales
Abstract
Leptogenesis can successfully explain the matter-antimatter asymmetry via out-of-equilibrium decays of heavy Majorana neutrinos in the early Universe. In this article we focus on non-resonant thermal leptogenesis and we study the possibility of lowering its scale through flavour effects in an exhaustive exploration of the model parameter space. We numerically solve the density matrix equations for one and two decaying heavy Majorana neutrinos and present the level of fine-tuning of the light neutrino masses within these scenarios. We demonstrate that the scale of thermal leptogenesis may be as low as $10^6$ GeV.
- Authors:
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
- OSTI Identifier:
- 1461914
- Alternate Identifier(s):
- OSTI ID: 1436701
- Report Number(s):
- arXiv:1804.05066; IPPP-18-25; FERMILAB-PUB-18-100-T; IPMU18-0062; SISSA-17-2018-FISI
Journal ID: ISSN 2470-0010; PRVDAQ; 015036
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 1; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Moffat, K., Pascoli, S., Petcov, S. T., Schulz, H., and Turner, J. Three-flavored nonresonant leptogenesis at intermediate scales. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.98.015036.
Moffat, K., Pascoli, S., Petcov, S. T., Schulz, H., & Turner, J. Three-flavored nonresonant leptogenesis at intermediate scales. United States. https://doi.org/10.1103/PhysRevD.98.015036
Moffat, K., Pascoli, S., Petcov, S. T., Schulz, H., and Turner, J. Fri .
"Three-flavored nonresonant leptogenesis at intermediate scales". United States. https://doi.org/10.1103/PhysRevD.98.015036.
@article{osti_1461914,
title = {Three-flavored nonresonant leptogenesis at intermediate scales},
author = {Moffat, K. and Pascoli, S. and Petcov, S. T. and Schulz, H. and Turner, J.},
abstractNote = {Leptogenesis can successfully explain the matter-antimatter asymmetry via out-of-equilibrium decays of heavy Majorana neutrinos in the early Universe. In this article we focus on non-resonant thermal leptogenesis and we study the possibility of lowering its scale through flavour effects in an exhaustive exploration of the model parameter space. We numerically solve the density matrix equations for one and two decaying heavy Majorana neutrinos and present the level of fine-tuning of the light neutrino masses within these scenarios. We demonstrate that the scale of thermal leptogenesis may be as low as $10^6$ GeV.},
doi = {10.1103/PhysRevD.98.015036},
journal = {Physical Review D},
number = 1,
volume = 98,
place = {United States},
year = {Fri Jul 27 00:00:00 EDT 2018},
month = {Fri Jul 27 00:00:00 EDT 2018}
}
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https://doi.org/10.1103/PhysRevD.98.015036
https://doi.org/10.1103/PhysRevD.98.015036
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Cited by: 30 works
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