Light sterile neutrinos, left-right symmetry, and 0νββ decay
Abstract
We investigate neutrinoless double beta (0νββ) decay rates in minimal left-right symmetric models in presence of relatively light right-handed neutrinos. By use of an effective field theory approach, we systematically include all contributions in the model as well as the dependence of the decay amplitude on the masses of right-handed neutrinos. In type-I and type-II seesaw scenarios, we analyze the impact of right-handed neutrinos heavier than about 10 MeV, showing that this effect can lead to a detection of 0νββ decay in the next-generation experiments even for the normal hierarchy and a relatively large right-handed scale set by the mass of hypothetical right-handed gauge bosons. Finally, we comment on a possible connection between light right-handed neutrinos and the strong CP problem.
Additional Information
GL would like to thank Dong-Liang Fang, Xiao-Dong Ma, Jiang-Ming Yao, and Jiang-Hao Yu for helpful discussions. J.d.V acknowledges support from the Dutch Research Council (NWO) in the form of a VIDI grant. GL, MJRM, and JCV were partially funded under the US Department of Energy contract DE-SC0011095. GL was also supported by SYSU startup funding and in part by the Fundamental Research Funds for the Central Universities, China, Sun Yat-sen University. JCV was also supported in part under the US Department of Energy contract DE-SC0015376. MJRM was also supported in part under National Science Foundation of China grant No. 19Z103010239.Additional details
- Eprint ID
- 118078
- Resolver ID
- CaltechAUTHORS:20221128-494241100.40
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
- DE-SC0011095
- Department of Energy (DOE)
- Sun Yat-sen University
- DE-SC0015376
- Department of Energy (DOE)
- 19Z103010239
- National Natural Science Foundation of China
- Created
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2022-12-20Created from EPrint's datestamp field
- Updated
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2022-12-20Created from EPrint's last_modified field