arXiv:1904.10954
MCnet-19-08
JHEP 1908 (2019) 106

by: Allanach, B.C. (Cambridge U., DAMTP) et al.

Abstract:
We examine current collider constraints on some simple Z$^{′}$ models that fit neutral current B-anomalies, including constraints coming from measurements of Standard Model (SM) signatures at the LHC. The ‘MDM’ simplified model is not constrained by the SM measurements but is strongly constrained by a 139 fb$^{−1}$ 13 TeV ATLAS di-muon search. Constraints upon the ‘MUM’ simplified model are much weaker. A combination of the current B$_{s}$ mixing constraint and ATLAS’ Z$^{′}$ search implies ${M}_{Z^{\prime }}>1.2$ TeV in the Third Family Hypercharge Model example case. LHC SM measurements rule out a portion of the parameter space of the model for ${M}_{Z^{\prime }}>1.5$ TeV.