Understanding template methods for top polarisation measurements

Abstract

Top polarisation measurements at the LHC are often performed using template methods. I discuss the role of quantum interference between polarisation states - which is mostly overlooked in the literature. Furthermore, I argue which is the correct definition of the `templates' of definite polarisations, in order to match the experimental measurements with meaningful theoretical predictions.

Comments: Talk at the 15th International Workshop on Top Quark Physics, Durham, UK, 4-9 September 2022