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- W3033374761 abstract "In recent years, experiments revealed intriguing hints for new physics (NP) in semi-leptonic B decays. Both in charged current processes, involving b → cτν transitions, and in the neutral currents b → sℓ +ℓ −, a preference for NP compared to the standard model (SM) of more that 3σ and 5σ was found, respectively. In addition, there is the long-standing tension between the theory prediction and the measurement of the anomalous magnetic moment (AMM) of the muon (aμ) of more than 3σ. Since all these observables are related to the violation of lepton flavor universality (LFU), a common NP explanation seems not only plausible but is even desirable. In this context, leptoquarks (LQs) are especially promising since they give tree-level effects in semi-leptonic B decays, but only loop-suppressed effects in other flavor observables that agree well with their SM predictions. Furthermore, LQs can lead to a mt/mμ enhanced effect in aμ, allowing for an explanation even with (multi) TeV particles. However, a single scalar LQ representation cannot provide a common solution to all three anomalies. In this article we therefore consider a model in which we combine two scalar LQs: the SU(2)L singlet and the SU(2)L triplet. Within this model we compute all relevant 1-loop effects and perform a comprehensive phenomenological analysis, pointing out various interesting correlations among the observables. Furthermore, we identify benchmark points which are in fact able to explain all three anomalies (b → cτν, b → sℓ +ℓ − and aμ), without violating bounds from other observables, and study their predictions for future measurements." @default.
- W3033374761 created "2020-06-12" @default.
- W3033374761 creator A5035388118 @default.
- W3033374761 creator A5039596123 @default.
- W3033374761 creator A5082695883 @default.
- W3033374761 date "2020-06-01" @default.
- W3033374761 modified "2023-10-18" @default.
- W3033374761 title "Flavor phenomenology of the leptoquark singlet-triplet model" @default.
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