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Combined explanation of $W$-mass, muon $g-2$, $R_{K^{(*)}}$ and $R_{D^{(*)}}$ anomalies in a singlet-triplet scalar leptoquark model

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arxiv 2204.09031 v2 pith:H4LB35JJ submitted 2022-04-19 hep-ph

Arvind Bhaskar , Anirudhan A. Madathil , Tanumoy Mandal , Subhadip Mitra This is my paper · ORCID
classification hep-ph
keywords anomaliesmasssolutioncouplingsexplanationleptoquarkleptoquarksmuon
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abstract

In addition to the long-standing anomalies seen in the muon $g-2$, $R_{K^{(*)}}$, and $R_{D^{(*)}}$ observables by various independent experiments, the CDF Collaboration has found another significant one in the $W$-boson mass. These anomalies might be intertwined at a fundamental level and have a single new-physics explanation. In this paper, we present a simultaneous solution to these anomalies with two scalar leptoquarks of roughly equal mass -- one weak-singlet $S_1$ and the other a weak-triplet $S_3$ -- which mix through a Higgs portal. The solution has only a few new couplings and TeV-scale leptoquarks, making the solution testable at the LHC. We put a lower and upper bound on the leptoquark masses in this setup from the current LHC data and the assumption that all new couplings are within the perturbative limit.

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Cited by 3 Pith papers

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  3. Unified Pati-Salam from Noncommutative Geometry: Overview and Phenomenological Remarks

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    A review of noncommutative-geometry Pati-Salam models, focusing on a safe S1 leptoquark that can address the R_D(*) anomaly.

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