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arXiv · 2308.00027

Returning CP-Observables to The Frames They Belong

Jona Ackerschott·Rahool Kumar Barman·Dorival Gonçalves·Theo Heimel·Tilman Plehn
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Abstract

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.

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Jona Ackerschott, Rahool Kumar Barman, Dorival Gonçalves, Theo Heimel, Tilman Plehn. 2023-07-31. Returning CP-Observables to The Frames They Belong. https://doi.org/10.21468/scipostphys.17.1.001

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