SciPost Submission Page
2B or not 2B, a study of bottom-quark-philic semi-visible jets
by Deepak Kar, Wandile Nzuza, Sukanya Sinha
This is not the latest submitted version.
This Submission thread is now published as
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: |
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| 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
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:
Reports on this Submission
Report #2 by Anonymous (Referee 2) on 2024-10-16 (Invited Report)
- Cite as: Anonymous, Report on arXiv:2207.01885v3, delivered 2024-10-16, doi: 10.21468/SciPost.Report.9931
Report
The authors have addressed the concerns of my report. They have also added a full-fledged proposal for a new search with background simulations, and this definitely strengthens the paper.
Regarding the quality of the recasts, indeed I must have been referring to table 1. It is a shame that the agreement is still so poor; assuming that there is no mistake in their implementation then the problem will be the perennial issue of efficiencies of the analysis objects, b-tagging, trigger etc. In general sorting this out is what takes most of the time, and where showing a cutflow can be helpful. Of course, that is not an automatic output of RIVET (unlike some other frameworks; similarly other frameworks make the implementation of isolation at particle level straightforward). So I will accept that the authors have done the best job possible given the available materials: readers will be able to use the recast with caution.
Recommendation
Publish (meets expectations and criteria for this Journal)
Report #1 by Anonymous (Referee 1) on 2024-10-8 (Invited Report)
- Cite as: Anonymous, Report on arXiv:2207.01885v3, delivered 2024-10-08, doi: 10.21468/SciPost.Report.9874
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
Author: Deepak Kar on 2024-10-09 [id 4850]
(in reply to Report 1 on 2024-10-08)We again thank the referee. The referee is of course right, and Z(nunu)bb does have a comparable cross-section compared to ttbar backgrounds, but we saw minphi and high MET requirements do kill it. We think the former is because the Z-boson is balancing the bb system. Please find attached the updated yields table, will the typo about efficiency fixed as well.
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