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Fluctuations and Selection Bias in 5 and 13 TeV p-p Collisions: Where are the jets?
by Thomas A. Trainor
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Thomas Trainor |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2109.00112v1 (pdf) |
| Date accepted: | 2022-02-16 |
| Date submitted: | 2021-10-13 18:54 |
| Submitted by: | Trainor, Thomas |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 50th International Symposium on Multiparticle Dynamics (ISMD2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Experimental |
Abstract
The ALICE collaboration recently reported high-statistics $\bf p_t$ spectra from 5 TeV and 13 TeV p-p collisions with intent to determine the role of jets in high-multiplicity collisions. In the present study a two-component (soft + hard) model (TCM) of hadron production in p-p collisions is applied to ALICE $\bf p_t$ spectra. As in previous TCM studies of A-B collision systems jet and nonjet contributions to $\bf p_t$ spectra are accurately separated over the entire $\bf p_t$ acceptance. The statistical significance of data-model differences is established leading to insights concerning selection bias and spectrum model validity.
Published as SciPost Phys. Proc. 10, 003 (2022)
Reports on this Submission
Anonymous Report 1 on 2022-1-28 (Invited Report)
- Cite as: Anonymous, Report on arXiv:2109.00112v1, delivered 2022-01-28, doi: 10.21468/SciPost.Report.4267
Strengths
A coherent and mostly clear write-up of this long-running interest of the author, and I feel I understand better as a result.
Weaknesses
The actual connection between the H component of the yt spectrum and other exclusive event quantities isn't made clear. Jets are an empirically existent local phenomena in events, so presumably the statistical scaling can be expected to break down at some point. Do the events compared to have selections requiring a certain number of jets in a particular algorithm above a certain pT, and how does that event-selection affect the S and H functions?
Report
This proceedings contribution describes the state of investigations in the inclusive TCM very well and is suitable for publication as-is.
In future studies and reports I would be very interested to see how this "inclusive scaling" approach to highly active collider events interplays with more local requirements on jets in event selection. Hope we can do that in this year's ISMD!