Single leptoquark solutions to the -physics anomalies
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Open Access
- 14 September 2021
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 104 (5), 055017
- https://doi.org/10.1103/physrevd.104.055017
Abstract
We revisit the possibilities of accommodating the experimental indications of the lepton flavor universality violation in -hadron decays in the minimal scenarios in which the Standard Model is extended by the presence of a single leptoquark state. To do so we combine the most recent low energy flavor physics constraints, including and , and combine them with the bounds on the leptoquark masses and their couplings to quarks and leptons as inferred from the direct searches at the LHC and the studies of the large tails of the differential cross section. We find that none of the scalar leptoquarks of can accommodate the -anomalies alone. Only the vector leptoquark, known as , can provide a viable solution which, in the minimal setup, provides an interesting prediction, i.e., a lower bound to the lepton flavor violating decay modes, such as .
Keywords
Funding Information
- H2020 Marie Skłodowska-Curie Actions (860881-HIDDeN)
- H2020 European Research Council
- Horizon 2020 Framework Programme (833280)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (200021- 175940)
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