A measurement of the high-mass $\tau \bar{\tau }$ production cross-section at $\sqrt{s}=13$ TeV with the ATLAS detector and constraints on new particles and couplings

The ATLAS Collaboration

The production cross-section of high-mass $\tau$-lepton pairs is measured as a function of the dilepton visible invariant mass, using 140 fb${}^{-1}$ of $\sqrt{s}=13$ TeV proton-proton…