PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Beyond the Standard Model
Seesaw Models of Neutrino Masses on the Convex Cone of Positivity Bounds
X. Li* and S. Zhou
Full text: pdf
Pre-published on: November 24, 2022
Published on: June 15, 2023
The convex geometric framework of positivity bounds allows us to explore the ultraviolet (UV) states in new physics models from the bottom up. The UV states in three types of seesaw models for tiny Majorana neutrino masses, as irreducible representations of the $SU(2)_L$ gauge group, naturally fit into this framework. Since neutrino masses arising from the dimension-five Weinberg operator imply that the UV states may couple to the left-handed lepton doublet $L$ and the Higgs doublet $H$, we construct a convex cone of positivity bounds to constrain the dimension-eight operators consisting of 𝐿 or 𝐻. Such a construction offers a novel way to distinguish between different seesaw models and derive lower bounds on the seesaw scale.
DOI: https://doi.org/10.22323/1.414.0167
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.