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Returning CP-Observables to The Frames They Belong

by Jona Ackerschott, Rahool Kumar Barman, Dorival Gonçalves, Theo Heimel, Tilman Plehn

This Submission thread is now published as

Submission summary

Authors (as registered SciPost users): Rahool Kumar Barman · Tilman Plehn
Submission information
Preprint Link: scipost_202403_00031v1  (pdf)
Date accepted: 2024-05-20
Date submitted: 2024-03-23 17:15
Submitted by: Barman, Rahool Kumar
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
  • High-Energy Physics - Phenomenology
Approaches: Computational, Phenomenological


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.

Author comments upon resubmission

The version of the manuscript that we resubmit addresses the comments and aspects brought to our attention by the referees.

Published as SciPost Phys. 17, 001 (2024)

Reports on this Submission

Report 3 by Florian Bury on 2024-3-28 (Invited Report)

  • Cite as: Florian Bury, Report on arXiv:scipost_202403_00031v1, delivered 2024-03-28, doi: 10.21468/SciPost.Report.8786


I would like to thank the authors for their very thorough work in answering the questions.
All the potential confusion points were clarified, and the modifications brought to the text have significantly improved its quality.
I have no further question about the content.
On the form side, I noticed that in the last paragraph of page 13 several lines seem to have been copied. Additionally, the footnote should probably be on the bottom of the page, and not in the middle before the figure.
Besides that, I believe the manuscript is ready for publication.

  • validity: -
  • significance: -
  • originality: -
  • clarity: -
  • formatting: -
  • grammar: -

Anonymous Report 1 on 2024-3-25 (Invited Report)


The authors have thoroughly addressed all inquiries and substantially improved the manuscript significantly in accordance with the feedback provided. I am happy to recommend its publication in SciPost.

  • validity: high
  • significance: high
  • originality: high
  • clarity: high
  • formatting: excellent
  • grammar: excellent

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