docs: Add ATLAS single-top-quark production observation statistical model record

[matthewfeickert]

Description

• Add ATLAS observation of single-top-quark production in association with a photon statistical model HEPDdata record.
  • c.f. https://www.hepdata.net/record/ins2628980
  • Corresponding INSPIRE record: https://inspirehep.net/literature/2628980

Checklist Before Requesting Reviewer

• Tests are passing
• "WIP" removed from the title of the pull request
• Selected an Assignee for the PR to be responsible for the log summary

Before Merging

For the PR Assignees:

• Summarize commit messages into a comprehensive review of the PR

* Add ATLAS observation of single-top-quark production in association with a photon
  statistical model HEPDdata record.
   - c.f. https://www.hepdata.net/record/ins2628980
   - Corresponding INSPIRE record: https://inspirehep.net/literature/2628980

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (1ad79b9) 98.30% compared to head (b1b1684) 98.30%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2292   +/-   ##
=======================================
  Coverage   98.30%   98.30%           
=======================================
  Files          69       69           
  Lines        4536     4536           
  Branches      802      802           
=======================================
  Hits         4459     4459           
  Misses         45       45           
  Partials       32       32           

Flag	Coverage Δ
contrib	97.88% <ø> (ø)
doctest	61.04% <ø> (ø)
unittests-3.10	96.31% <ø> (ø)
unittests-3.11	96.31% <ø> (ø)
unittests-3.8	96.34% <ø> (ø)
unittests-3.9	96.36% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.