Abstract: One of the most important goals of the precision collider physics program is to push beyond the sub-percent accuracy of the current top mass measurement.

This involves looking for observables that are both sensitive to the top mass and can be brought under theoretical control. Satisfying both these criterion at the LHC is a challenging task due to contributions from soft physics and the underlying event.

In this talk I will present a novel proposal of measuring the top using correlation functions of energy flow operators. The electroweak decay of the top imprints itselfas a distinct peak in the three-point correlation function at an angle determined by the ratio of top mass and transverse momentum.

I will show how this can allow us to simultaneously achieve high sensitivity to the top mass comparable to the state-of-the-art measurements. I will contrast this observable with a complementary approach of measuring the top using soft drop jet mass.