Search for new physics with high-mass tau lepton pairs in pp collisions at sqrt(s) = 13 TeV with the CMS detector

A search for physics beyond the standard model in events containing $\tau$ lepton pairs of high mass is performed using proton-proton collisions at $\sqrt{s}$ = 13 TeV. The data were collected with the CMS detector at the LHC and correspond to an integrated luminosity of 2.2 fb$^{-1}$. The observation is in good agreement with the standard model prediction. An upper limit at 95\% CL on the product of cross section times branching fraction into $\tau$ lepton pairs is calculated as a function of the resonance mass for the Sequential Standard Model. In this model, the presence of $Z'$ bosons decaying into $\tau$ lepton pairs is excluded for $Z'$ masses below 2.1 TeV.