Light sterile neutrinos, left-right symmetry, and 0νββ decay

A bstract We investigate neutrinoless double beta (0 νββ ) 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 th...

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Bibliographic Details
Published in:The journal of high energy physics 2022-11, Vol.2022 (11), p.56-38, Article 56
Main Authors: de Vries, Jordy, Li, Gang, Ramsey-Musolf, Michael J., Vasquez, Juan Carlos
Format: Article
Language:English
Subjects:
Astronomy
Baryon/Lepton Number Violation
Beta decay
Bosons
Classical and Quantum Gravitation
Decay rate
Elementary Particles
Experiments
Field theory
Gauges
High energy physics
Impact analysis
Left-Right Models
Light
Neutrinos
Phenomenology
Physics
Physics and Astronomy
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Symmetry
Theoretical physics
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Summary:A bstract We investigate neutrinoless double beta (0 νββ ) 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 0 νββ 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.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP11(2022)056