A note on the predictions of models with modular flavor symmetries

DOI10.1016/J.PHYSLETB.2019.135153zbMATH Open1435.81117arXiv1909.06910OpenAlexW2995516491WikidataQ126580202 ScholiaQ126580202MaRDI QIDQ2188486

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Publication date: 11 June 2020

Published in: (Search for Journal in Brave)

Abstract: Models with modular flavor symmetries have been thought to be highly predictive. We point out that these predictions are subject to corrections from non-holomorphic terms in the Lagrangean. Specifically, in the models discussed in the literature, the K"ahler potential is not fixed by the symmetries, for instance. The most general K"ahler potential consistent with the symmetries of the model contains additional terms with additional parameters, which reduce the predictive power of these constructions. We also comment on how one may conceivably retain the predictivity.

Full work available at URL: https://arxiv.org/abs/1909.06910

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