Search for Minimal Supersymmetric Standard Model Higgs bosons H/A and for a Z ' boson in the tau tau final state produced in pp collisions at root s=13 TeV with the ATLAS Detector

Asearch for neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) and for a heavy neutral Z boson is performed using a data sample corresponding to an integrated luminosity of 3.2 fb 1 from proton–proton collisions at s = 13 TeV recorded by the ATLAS detector at the LHC. The heavy resonance is assumed to decay to a + pair with at least one lepton decaying to final states with hadrons and a neutrino. The search is performed in the mass range of 0.2–1.2 TeV for the MSSM neutral Higgs bosons and 0.5–2.5 TeV for the heavy neutral Z boson. The data are in good agreement with the background predicted by the Standard Model. The results are interpreted in MSSM and Z benchmark scenarios. The most stringent constraints on the MSSM mA–tan space exclude at 95% confidence level (CL) tan > 76 for mA = 200 GeV in the mmod+ h MSSMscenario. For the Sequential Standard Model, a ZSSM mass up to 1.90 TeV is excluded at 95% CL and masses up to 1.82–2.17 TeV are excluded for a ZSFM of the Strong Flavour Model.