التفاصيل البيبلوغرافية
| العنوان: |
The minimal massive Majoron Seesaw Model. |
| المؤلفون: |
de Giorgi, Arturo, Merlo, Luca, Díaz, Xavier Ponce, Rigolin, Stefano |
| المصدر: |
Journal of High Energy Physics; Mar2024, Vol. 2024 Issue 3, p1-39, 39p |
| مصطلحات موضوعية: |
NEUTRINO mass, NAMBU-Goldstone bosons, SCALAR field theory, STERILE neutrinos, SYMMETRY breaking, NEUTRINOS |
| مصطلحات جغرافية: |
ALPS |
| مستخلص: |
A convincing explanation of the smallness of neutrino masses is represented by the Type-I Seesaw mechanism, where the two measured neutrino mass differences can be generated by introducing at least two right-handed neutrinos. In an ultraviolet complete model, it is possible to dynamically generate the heavy Majorana scale through the spontaneous symmetry breaking of a global Abelian symmetry and the most economical realisation consists in coupling the two exotic neutral leptons to a singlet complex scalar field. The associated Goldstone boson is often dubbed as Majoron, which may achieve a non-vanishing mass by means of a small term that explicitly breaks the Abelian symmetry. In a generic model, the neutrino and Majoron mass generation mechanisms are completely uncorrelated. In this paper, instead, we reduce the landscape of possible models proposing a unique, minimal and predictive framework in which these two types of masses are strictly tied and arise from the same source. Bounds from various terrestrial and astrophysical experiments are discussed. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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