Search for High-Mass Resonances Decaying to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>τ</mml:mi><mml:mi>ν</mml:mi></mml:math> in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:math> Collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math> with the ATLAS Detector

A search for high-mass resonances decaying to $\ensuremath{\tau}\ensuremath{\nu}$ using proton-proton collisions at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$ produced by the Large Hadron Collider is presented. Only $\ensuremath{\tau}$-lepton decays with hadrons in the final state are considered. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of $36.1\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. No statistically significant excess above the standard model expectation is observed; model-independent upper limits are set on the visible $\ensuremath{\tau}\ensuremath{\nu}$ production cross section. Heavy ${W}^{\ensuremath{'}}$ bosons with masses less than 3.7 TeV in the sequential standard model and masses less than 2.2--3.8 TeV depending on the coupling in the nonuniversal $G(221)$ model are excluded at the 95% credibility level.

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