Model-independent constraints on the Abelian $Z'$ couplings within the ATLAS data on the dilepton production processes at $\sqrt{s} =$ 13 TeV

Understand

The study of lepton pair production is a powerful test of the Standard Model (SM) and can be used to search for phenomena beyond the SM.

• New heavy neutral bosons $Z'$ decaying to charged lepton pairs $l^+l^-$ ($l=e, \mu$) are predicted by many scenarios of new physics, including models with extended gauge sector.
• We estimate the LHC $Z'$ discovery potential with Run 2 data comprised of 36.1 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV and recorded by ATLAS detector at the CERN LHC.
• The model-independent constraints on the $Z'$ fermion couplings were obtained for the first time for a selected set of $Z'$ signal mass points of $M_{Z'}=2$, 3, and 4 TeV by using the ATLAS data collected at the LHC.