New Methods for Top-Quark Mass Measurements at the LHC

Several recent new measurements of the top-quark mass that use alternative observables and reconstruction techniques are presented, performed by the ATLAS and CMS collaborations at the CERN LHC. Alternative observables can help provide insight by presenting different systematic sensitivities and by constraining prevailing systematic uncertainties of standard measurements, such as jet energy calibrations. Furthermore, the top-quark mass is extracted from theoretically well-defined observables, such as the inclusive production cross section for top quark pairs. Finally, the mass is measured in event topologies dominated by electroweak-mediated single top production by both experiments. The results of different techniques and production modes are found to be consistent with what is obtained in standard measurements.