41 citations · 50 across the 5 of their papers we have counts for
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Fermion Mass Hierarchies from Modular Symmetry
Simon J. D. King, Stephen F. King
We show how quark and lepton mass hierarchies can be reproduced in the framework of modular symmetry. The mechanism is analogous to the Froggatt-Nielsen (FN) mechanism, but without…
Modular Invariant Models of Lepton Masses at Levels 4 and 5
Juan Carlos Criado, Ferruccio Feruglio, Simon J. D. King
We explore alternative descriptions of the charged lepton sector in modular invariant models of lepton masses and mixing angles. In addition to the modulus, the symmetry breaking s…
Be Decay Anomaly and Light
Luigi Delle Rose, Shaaban Khalil, Simon J. D. King +2
In this proceedings, we discuss a light (17 MeV) solution to the anomaly observed in the decay of Beryllium-8 by the Atomki collaboration. We detail an anomaly free model with…
and in an Aligned 2HDM with Right-Handed Neutrinos
Luigi Delle Rose, Shaaban Khalil, Simon J. D. King +1
We consider the possibility to explain the recent and anomalies in a 2-Higgs Doublet Model, known as Aligned, combined with a low scale seesaw mechanism generating…
Atomki Anomaly in Family-Dependent Extension of the Standard Model
Luigi Delle Rose, Shaaban Khalil, Simon J. D. King +2
In the context of a gauge invariant, non-anomalous and family-dependent (non-universal) extension of the Standard Model, wherein a new high scale mechanism generates masses…
New Physics Suggested by Atomki Anomaly
Luigi Delle Rose, Shaaban Khalil, Simon J. D. King +1
We consider several extensions of the Standard Model (SM) which can explain the anomalies observed by the Atomki collaboration in the decay of excited states of Beryllium via a new…