# Minimal Z′ models for flavor anomalies

@article{Benavides2018MinimalZM,
title={Minimal Z′ models for flavor anomalies},
author={Richard H. Benavides and Luis Alfredo Mu{\~n}oz and William A. Ponce and Oscar Rodr'iguez and Eduardo Rojas},
journal={Journal of Physics G: Nuclear and Particle Physics},
year={2018}
}
• Published 12 December 2018
• Physics
• Journal of Physics G: Nuclear and Particle Physics
By allowing gauge anomaly cancellation between fermions in different families we find a non-universal solution for a $Z'$ family of models with the same content of fermions of the standard model plus three right-handed neutrinos. We also impose constraints from the Yukawa interaction terms in such a way that at the end we obtain a solution with six free parameters. Our solution contains as particular cases well-known models in the literature. As an application, we report a model that evades LHC…
8 Citations

## Figures and Tables from this paper

• Physics
Physical Review D
• 2021
The most statistically significant hints for new physics in the flavor sector are discrepancies between theory and experiment in $B$ decays to lepton pairs
• Physics
• 2022
The discrepancies between the measurements of rare (semi-)leptonic B decays and the correspond-ing Standard Model predictions point convincingly towards the existence of new physics for which a heavy
• Physics
Physical review letters
• 2021
A simple model that can provide a combined explanation of the Z→bb[over ¯] forward-backward asymmetry, the Cabibbo angle anomaly (CAA), τ→μνν and b→sℓ^{+}™^{-} data, which gives an excellent fit to data (6.1σ better than the SM).
• Physics
Journal of High Energy Physics
• 2021
New neutral heavy gauge bosons (Z′) are predicted within many extensions of the Standard Model. While in case they couple to quarks the LHC bounds are very stringent, leptophilic Z′ bosons (even with
• Physics
• 2019
We propose a generation dependent lepton/baryon gauge symmetry, $U(1)_{B_3 - x_\mu L_\mu - x_\tau L_\tau} \equiv U(1)_X$ (with $x_\mu + x_\tau =1$ for anomaly cancellation), as a possible solution
• Physics
• 2022
The discrepancies between b → s(cid:96) + (cid:96) − data and the corresponding Standard Model predictions point convincingly towards the existence of new physics. In particular, a heavy neutral

## References

SHOWING 1-10 OF 86 REFERENCES

• Physics
The European physical journal. C, Particles and fields
• 2018
The constraints imposed by the cancellation of triangle anomalies on models in which the flavour anomalies reported by LHCb and other experiments are due to an extra U(1)$$^\prime$$′ gauge boson Z″ are explored, showing how the prospective LHC Z′ constraint may be weakened because the Z′→μ+μ- branching ratio is suppressed relative to other decay modes.
• Physics
Journal of High Energy Physics
• 2018
A bstractSo far the most sophisticated experiments have shown no trace of new physics at the TeV scale. Consequently, new models with unexplored parameter regions are necessary to explain current
• Physics
• 2017
We report the most general expression for the chiral charges of a nonuniversal U(1)' with identical charges for the first two families but different charges for the third one. The model is minimal
• Mathematics
• 2015
A bstractWe classify the quantum numbers of the extra U(1)′ symmetries contained in E6. In particular, we categorize the cases with rational charges and present the full list of models which arise
• Physics
• 2009
We consider non-universal ‘minimal’ Z′ models, whose additional U(1) charge is a non-anomalous linear combination of the weak hypercharge Y, the baryon number B and the partial lepton numbers (Le,
• Physics
• 2015
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
• Physics
Physical Review D
• 2018
In a truly model-independent approach, we reexamine a minimal extension of the Standard Model (SM) through the introduction of an additional U(1) symmetry leading to a new neutral gauge boson (Z′),
• Physics
• 2003
We study theoretical and experimental constraints on electroweak theories including a new color-singlet and electrically-neutral gauge boson. We first note that the electric charges of the observed
• Physics
• 2016
We revisit a class of Z' explanations of the anomalies found by the LHCb collaboration in $B$ decays, and show that the scenario is tightly constrained by a combination of constraints: (i) LHC