6–10 Nov 2023
DESY
Europe/Zurich timezone

Returning CP-Observables to the Frames they Belong

8 Nov 2023, 16:15
15m
Main Auditorium (DESY)

Main Auditorium

DESY

Speaker

Jona Ackerschott

Description

Optimal kinematic observables are often defined in specific frames and then approximated at the reconstruction level. We show how multi-dimensional unfolding methods allow us to reconstruct these observables in their proper rest frame and in a probabilistically faithful way. We illustrate our approach with a measurement of a CP-phase in the top Yukawa coupling. Our method makes use of key advantages of generative unfolding, but as a constructed observable it fits into standard LHC analysis frameworks.

Authors

Jona Ackerschott Rahool Kumar Barman (Oklahoma State University) Theo Heimel (Heidelberg University) Tilman Plehn dorival Gonçalves (Oklahoma State University)

Presentation materials