Quark and lepton flavor model with leptoquarks in a modular A4 symmetry
Abstract
We propose a quark-lepton model via leptoquarks and modular A4 symmetry. Since the neutrino mass is induced at one-loop level mediated by down quarks as well as leptoquarks, we have to explain lepton and quark masses and mixings with a single modulus τ. Here, we find predictions for lepton and quark sectors with unified modulus τ, and show several constraints originating from leptoquarks.
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