Boosted hadronic vector boson and top quark tagging with ATLAS using Run 2 data

The identification of boosted hadronic decays of $W$ bosons, $Z$ bosons, and top quarks is an important part of the ATLAS physics program. This note presents the development and optimization of taggers aimed at identifying such hadronic decays, as well as their calibration, in $\sqrt{s} = 13$~TeV $pp$ collisions recorded by the ATLAS experiment at the Large Hadron Collider. $W$ and $Z$ boson taggers are defined using selection criteria on individual hadronic jet properties and top quark taggers are defined using deep neural networks that use jet substructure moments as input. Additionally, techniques are used to derive scale factors that correct the tagger efficiency in simulation to match that in data using data collected between 2015 and 2017 corresponding to 80~fb$^{-1}$ of integrated luminosity. Scale factors are derived using $t\bar{t}$, multijet, and $\gamma+$jet selections.