Search for Minimal Supersymmetric Standard Model Higgs bosons $H/A$ and for a $Z^{\prime}$ boson in the $\tau \tau$ final state produced in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS Detector

ALONSO FRANCISCO, ET. AL. (ATLAS COLLABORATION)

The European Physical Journal C

Springer

Año: 2016

A search for neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) and for a heavy neutral Z 0 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 τ+ τ− pair with at least one τ 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 Z0 boson. The data are in good agreement with the background predicted by the Standard Model. The results are interpreted in MSSM and Z0 benchmark scenarios. The most stringent constraints on the MSSM m A ?tan β space exclude at 95% confidence level (CL) tan β > 7.6 for m A = 200 GeV in the m mod+MSSM scenario.For the Sequential Standard Model, a Z SSM mass up to 1.90 TeV is excluded at 95% CL and masses up to 1.82?2.17 TeV are excluded for a Z SFMof the Strong Flavour Model.