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2B or not 2B, a study of bottom-quark-philic semi-visible jets

by Deepak Kar, Wandile Nzuza, Sukanya Sinha

Submission summary

Authors (as registered SciPost users): Deepak Kar · Sukanya Sinha
Submission information
Preprint Link: https://arxiv.org/abs/2207.01885v3  (pdf)
Date submitted: 2024-09-12 11:35
Submitted by: Kar, Deepak
Submitted to: SciPost Physics Core
Ontological classification
Academic field: Physics
Specialties:
  • High-Energy Physics - Experiment
  • High-Energy Physics - Phenomenology
Approaches: Computational, Phenomenological

Abstract

Semi-visible jets arise in strongly interacting dark sector, resulting in jets overlapping with the missing transverse momentum direction. The implementation of semi-visible jets is done using the Pythia Hidden Valley module to mimic the QCD sector showering in so-called dark shower. In this work, only heavy flavour Standard Model quarks are considered in dark shower, resulting in a much less ambiguous collider signature of semi-visible jets compared to the democratic production of all five quark flavours in dark shower. The constraints from available searches on this signature are presented, and it is shown the signal reconstruction can be improved by using variable-radius jets. Finally a search strategy is suggested.

Author comments upon resubmission

We thank the referees for comprehensive reviews, and making suggestions to improve the quality and usefulness of the paper. We apologise for the delay in getting back, summer travels came in the way. We tried to address most of the concerns.

List of changes

* Reorganised the model part, switched from NF_1 to NF_2 for theoretical consistency, but none of the conclusions change.
* Added plots of a couple of new discriminating variables, and proposed a loose set up cuts for an experiment analysis with a cutflow. Also expanded the text to motivate the analysis strategy.
* We have added a study of a new jet reconstruction technique called the Dynamic Radius Jet Clustering.
* We added more details on the analyses used for reinterpretation to help the reader.
* Fixed typos, and textual inconsistencies.

Current status:
In refereeing

Reports on this Submission

Anonymous Report 1 on 2024-10-8 (Invited Report)

Report

With their resubmission the authors have substantially improved the quality of the manuscript and addressed several of my main concerns. In particular table 4 constitutes a welcome addition. However, I worry that the most dominant background is missing in the table (and in the figures), namely Z+jets, with the Z boson decaying invisibly. Is there a good argument why this background is not considered? If such an argument can be provided, I would be convinced that the proposed analysis is promising, and that the present work provides sufficient motivation for a more detailed follow-up study to warrant publication in SciPost.

Requested changes

- Table 4 is labelled "Selection efficiency in %", but the cells contain numbers of events, not their relative change.

Recommendation

Ask for minor revision

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