Addressing the LHC flavor anomalies with horizontal gauge symmetries
By Andreas Crivellin, G. D’Ambrosio, J. Heeck. 2015
336 citations recorded by the source corpus.
We study the impact of an additional U(1)′ gauge symmetry with flavor-dependent charges for quarks and leptons on the LHC flavor anomalies observed in B→K∗μ+μ-, R(K)=B→Kμ+μ-/B→Ke+e-, and h→μτ. In its minimal version with two scalar doublets, the resulting model naturally explains the deviations from the Standard Model observed in B→K∗μ+μ- and R(K). The CMS access in h→μτ can be explained by introducing a third scalar doublet, which gives rise to a prediction for τ→3μ. We investigate constraints from flavor observables and direct LHC searches for pp→Z′→μ+μ-. Our model successfully generates the measured fermion-mixing matrices and does not require vectorlike fermions, unlike previous attempts to explain these anomalies.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/768da11e1605c59255ab5833be1d4fd427e322a0
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In Nuclear and High Energy Physics
- S. Descotes-Genon
- J. Virto
- B. Capdevila
- J. Matias
- Andreas Crivellin
- David M. Straub
- J. Camalich
- T. Hurth
Citations in the corpus
- Patterns of New Physics in b → sℓ+ℓ− transitions in the light of recent data (2017, methodology): “In addition, and following the discussion of the previous section, we add to the fit all the new measurements made available since Ref.”