A search for the neutral Higgs bosons predicted by the Minimal Supersymmetric
Standard Model (MSSM) is reported. The analysis is performed on data from
proton-proton collisions at a centre-of-mass energy of 8TeV collected with the ATLAS
detector at the Large Hadron Collider. The samples used for this search were collected in
2012 and correspond to integrated luminosities in the range 19.5–20.3 fb−1. The MSSM
Higgs bosons are searched for in the τ τ final state. No significant excess over the expected
background is observed, and exclusion limits are derived for the production cross section
times branching fraction of a scalar particle as a function of its mass. The results are also
interpreted in the MSSM parameter space for various benchmark scenarios.