Diffusion-model approach to flavor models: A case study for $S_{4}^\prime$ modular flavor model

1 Jul 2025, 15:30
20m
Aula Magna "LIBERA" (Roma Tre)

Aula Magna "LIBERA"

Roma Tre

Largo Giovanni Battista Marzi, 00153 Roma RM

Speaker

Satsuki Nishimura (Kyushu University)

Description

We propose a numerical method of searching for parameters with experimental constraints in generic flavor models by utilizing diffusion models, which are classified as a type of generative artificial intelligence (generative AI). As a specific example, we consider the $S_{4}^\prime$ modular flavor model and construct a neural network that reproduces quark masses, the CKM matrix, and the Jarlskog invariant by treating free parameters in the flavor model as generating targets. By generating new parameters with the trained network, we find various phenomenologically interesting parameter regions where an analytical evaluation of the $S_{4}^\prime$ model is challenging. Additionally, we confirm that the spontaneous CP violation occurs in the $S_{4}^\prime$ model. The diffusion model enables an inverse problem approach, allowing the machine to provide a series of plausible model parameters from given experimental data. Moreover, it can serve as a versatile analytical tool for extracting new physical predictions from flavor models. References are arXiv:2503.21432 [hep-ph] and arXiv:2504.00944 [hep-ph].

Authors

Satsuki Nishimura (Kyushu University) Dr Hajime Otsuka (Kyushu University) Mr Haruki Uchiyama (Kyushu University)

Presentation materials