# 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} }

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

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### Global analysis of leptophilic Z′ bosons

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## References

SHOWING 1-10 OF 86 REFERENCES

### Anomaly-free models for flavour anomalies

- PhysicsThe 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.

### The non-Universal U(1) gauge extended μνSSM: anomalies cancellation and singular phenomenology

- PhysicsJournal 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…

### Minimal nonuniversal electroweak extensions of the standard model: A chiral multiparameter solution

- 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…

### Alternative Z′ bosons in E6

- 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…

### Non-universal minimal Z′ models: present bounds and early LHC reach

- 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,…

### Addressing the LHC flavor anomalies with horizontal gauge symmetries

- 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…

### Reappraisal of constraints on Z′ models from unitarity and direct searches at the LHC

- PhysicsPhysical 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′),…

### Nonexotic Neutral Gauge Bosons

- 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…

### Z ' models for the LHCb and g-2 muon anomalies

- 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…