Search for minimal supersymmetric standard model Higgs Bosons H / A and for a Z' boson in the ττ final state produced in pp collisions at s√=13 TeV with the ATLAS detector

Abstract

Ajuts: We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of MINECO, Spain and EPLANET, ERC, FP7, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union. Funded by SCOAP3. ; A search for neutral Higgs bosons of the minimal supersymmetric standard model (MSSM) and for a heavneutral boson is performed using a data sample corresponding to an integrated luminosity of 3.2 fb from proton-proton collisions at 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 for the MSSM neutral Higgs bosons and 0.5-2.5 for the heavy neutral boson. The data are in good agreement with the background predicted by the Standard Model. The results are interpreted in MSSM and benchmark scenarios. The most stringent constraints on the MSSM - space exclude at 95 % confidence level (CL) for in the MSSM scenario. For the Sequential Standard Model, a mass up to 1.90 is excluded at 95 % CL and masses up to 1.82-2.17 are excluded for a of the strong flavour model.