Returning CP-observables to the frames they belong

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 approa...

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Bibliographic Details
Main Authors: Ackerschott, Jona (Author) , Barman, Rahool Kumar (Author) , Gonçalves, Dorival (Author) , Heimel, Theo (Author) , Plehn, Tilman (Author)
Format: Article (Journal)
Language:English
Published: 2 July 2024
In: SciPost physics
Year: 2024, Volume: 17, Issue: 1, Pages: 1-26
ISSN:2542-4653
DOI:10.21468/SciPostPhys.17.1.001
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.21468/SciPostPhys.17.1.001
Verlag, lizenzpflichtig, Volltext: https://scipost.org/10.21468/SciPostPhys.17.1.001
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Author Notes:Jona Ackerschott, Rahool Kumar Barman, Dorival Gonçalves, Theo Heimel and Tilman Plehn
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Summary: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.
Item Description:Gesehen am 09.12.2024
Physical Description:Online Resource
ISSN:2542-4653
DOI:10.21468/SciPostPhys.17.1.001