A note on the predictions of models with modular flavor symmetries

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 Kähler potential is not fixed by the symmetries,...

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Bibliographic Details
Published inPhysics letters. B Vol. 801; p. 135153
Main Authors Chen, Mu-Chun, Ramos-Sánchez, Saúl, Ratz, Michael
Format Journal Article
LanguageEnglish
Published Elsevier B.V 10.02.2020
Elsevier
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Summary: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 Kähler potential is not fixed by the symmetries, for instance. The most general Kähler 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 potential ways of how one may conceivably retain the predictivity.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2019.135153