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Explaining Flavour Anomalies with Heavy Scalars

2022/03/17 by Trifinopoulos, Sokratis
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2203.09624

Abstract

Discrepancies between recent experimental results and their respective Standard Model predictions, known as flavour anomalies, are reported in semileptonic charged and neutral-current B-decays, the muon magnetic moment (g-2)μ, and the extraction of the Cabibbo angle. In this proceedings, we review two New Physics models that introduce two scalar mediators at the TeV scale and aim at a combined explanation of the flavour anomalies. The first model features the leptoquarks S1 and S3 and provides tree level solutions to both B-anomalies and one-loop level solution to the anomalous (g-2)μ. The second features the leptoquark S1 and the charged singlet ϕ+. While S1 provides the same solution to the charged-current B-anomaly and (g-2)μ as in the first model, ϕ+ can accommodate the Cabibbo-angle anomaly independently and together with S1 can resolve the neutral-current B-anomaly at one-loop.

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