TeV-scale lepton number violation: Connecting leptogenesis, neutrinoless double beta decay, and colliders
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1.
Technical University of Munich
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2.
California Institute of Technology
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3.
University of Massachusetts Amherst
Abstract
In the context of TeV-scale lepton number violating (LNV) interactions, we illustrate the interplay between leptogenesis, neutrinoless double beta (0νββ) decay, and LNV searches at proton-proton colliders. Using a concrete model for illustration, we overcome the limitations of previous effective field theory analyses and are able to identify the parameter space where standard thermal leptogenesis is rendered unviable due to washout processes. Moreover, we show how 0νββ decay and pp collisions provide complementary probes. We find that the new particle spectrum can have a decisive impact on the relative sensitivity of these two probes. Published by the American Physical Society 2024
Copyright and License
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Acknowledgement
M. J. R. M. thanks G. Li for many useful discussions regarding the hadronic and nuclear matrix elements. M. J. R. M., S. U.-Q., and T. Y. S. were supported in part under the U.S. Department of Energy Contract No. DE-SC0011095. M. J. R. M. was also supported in part under the National Natural Science Foundation of China Grant No. 19Z103010239. S. U.-Q. thanks B. Shuve, J. de Vries, and S. Krishnamurthy for fruitful discussions. The work of S. U.-Q. was supported by ANID-PFCHA (Programa de Formación de Capital Humano Avanzado)/DOCTORADO BECAS CHILE/2018-72190146. J. H. acknowledges support from the DFG Emmy Noether Grant No. HA 8555/1-1.
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Additional details
- ISSN
- 2470-0029
- United States Department of Energy
- DE-SC0011095
- National Natural Science Foundation of China
- 19Z103010239
- Agencia Nacional de Investigación y Desarrollo
- Deutsche Forschungsgemeinschaft
- HA 8555/1-1
- PFCHA
- CHILE/2018-72190146
- Accepted
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2024-07-22Accepted
- Available
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2024-08-01Published online
- Publication Status
- Published