Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb$^{−1}$ of pp collisions at $ \sqrt{s}=13 $ TeV with the ATLAS detector

with at least one tau lepton decaying to final states with hadrons and a neutrino. The search is performed in the mass range of 0.2-2.25 TeV for Higgs bosons and 0.2-4.0 TeV for Z′ bosons. The data are in good agreement with the background predicted by the Standard Model. The results are interpreted in benchmark scenarios. In the context of the hMSSM scenario, the data exclude tan β > 1.0 for m

_{A}

= 0.25 TeV and tan β > 42 for m

_{A}

= 1.5 TeV at the 95% confidence level. For the Sequential Standard Model, Z

_{SSM}^{′}

with m

_{Z′}

< 2.42 TeV is excluded at 95% confidence level, while Z

_{NU}^{′}

with m

_{Z ′}

< 2.25 TeV is excluded for the non-universal G(221) model that exhibits enhanced couplings to third-generation fermions.

Note:

52 pages in total, author list starting page 36, 11 figures, 3 tables, published version, all figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-12/

Beyond Standard Model
Hadron-Hadron scattering (experiments)
p p: scattering
p p: colliding beams
resonance: heavy
resonance: leptonic decay
tau: pair production
tau: hadronic decay
family: 3
Higgs particle: mass

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