https://doi.org/10.1140/epjc/s10052-025-14370-z
Regular Article - Theoretical Physics
Revisiting neutrino masses in clockwork models
Indian Institute of Science, CV Raman Rd, 560012, Bengaluru, Karnataka, India
Received:
24
October
2024
Accepted:
26
May
2025
Published online:
13
June
2025
In this paper, we have studied a mechanism that naturally produces hierarchical masses using fine cancellation rather than widely used suppression mechanisms as in seesaw, clockwork or randomness-assisted localization models. We have also looked at various variants of the clockwork model and provided analytical expressions for their 0 modes. Few generalizations of clockwork models such as generalized CW and next to nearest neighbour interaction CW have already been explored by a few authors. All the variants of CW models have the same underlying principle i.e., suppression. In this study, it was found that non-local CW models relaxes the 
constraint of ordinary CW models to produce localization. We also made a comparison among them and have shown that in some scenarios variants of CW are more efficient than ordinary CW. Additionally, the fine-cancellation (precision-prune) mechanism is depicted within the framework of the extra dimension picture. Finally, some phenomenological signatures of all these models are also discussed along with their benchmark points.
© The Author(s) 2025
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