Leptoquark-induced CLFV decays with a light SM-singlet scalar

Abstract

The Standard Model (SM), if augmented with a light SM-singlet scalar $\varphi$ and a TeV-scale scalar leptoquark (LQ) $S_1$, 2-body charged lepton flavor violating (CLFV) decay channels can be accessed with $\varphi$ as one of the final states, where the leading order effective interactions between $\varphi$ and the SM fields arise at one-loop level. Further, in the presence of $S_1$, $\varphi$ can mediate 3-body CLFV processes with either two photons or two gluons in the final states. Thus, the model predicts an exotic 3-body CLFV channel: ${\ell }_A\to {\ell }_{B}gg$, which can be tested/constrained only through some future high-energy experiments looking for di-gluon signals from a leptonic decay.

arXiv comment8 pages, 8 figures, 3 tables, published version

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Cited by in corpus (4)

• Neutrinoless Double Beta Decay from Scalar Leptoquarks: Interplay with Neutrino Mass and Flavor Physics
• The Revival of $U(1{)}_{L_e-L_{\mu }}$: A Natural Solution for $(g-2{)}_{\mu }$ with a Sub-GeV Dark Matter
• General Signals for Charged Lepton Flavor Violating Decays
• LFV decays in a 3-4-1 model with minimal inverse seesaw neutrinos