[PWGLF] Move double-cascade inspector to double-omega search analysis

[fmazzasc]

No description provided.

[github-actions]

O2 linter results: ❌ 15 errors, ⚠️ 5 warnings, 🔕 9 disabled

[alibuild]

Error while checking build/O2Physics/code-check for 99d656e at 2026-08-30 09:25:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 5 errors and 1 warnings.'
Found 5 errors and 1 warnings.
++ [[ 5 -gt 0 ]]
++ cat /sw/BUILD/1bc7e70becf82cf72d42ef36a3688d742e864068/O2Physics-code-check/errors.txt
PWGLF/DataModel/LFDoubleOmegaTables.h:17:1: error: included header cstdint is not used directly [misc-include-cleaner,-warnings-as-errors]
PWGLF/TableProducer/Strangeness/doubleOmegaTreeCreator.cxx:59:84: error: no header providing "o2::aod::TracksDCA" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGLF/TableProducer/Strangeness/doubleOmegaTreeCreator.cxx:127:8: error: constructor does not initialize these fields: ccdb [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
PWGLF/TableProducer/Strangeness/doubleOmegaTreeCreator.cxx:550:27: error: no header providing "o2::math_utils::Point3D" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGLF/TableProducer/Strangeness/doubleOmegaTreeCreator.cxx:1095:12: error: no header providing "size_t" is directly included [misc-include-cleaner,-warnings-as-errors]
++ [[ 1 -gt 0 ]]
++ cat /sw/BUILD/1bc7e70becf82cf72d42ef36a3688d742e864068/O2Physics-code-check/warnings.txt
PWGLF/TableProducer/Strangeness/doubleOmegaTreeCreator.cxx:355:29: warning: use designated initializer list to initialize 'LambdaCandidate' [modernize-use-designated-initializers]
++ [[ 5 -gt 0 ]]
++ exit 1
--

Full log here.

[romainschotter]

Hi @fmazzasc !
I am not entirely sure to understand why it is necessary to re-build the Lambda and Omega candidates. Why not using the V0 and cascade tables produced by the strangeness builder?
Could you please also add:

• #include in doubleOmegaTreeCreator.cxx?
  Thank you very much!

[alibuild]

Error while checking build/O2Physics/staging for 99d656e at 2026-08-27 02:04:

No log files found

Full log here.

[alibuild]

Error while checking build/O2Physics/o2 for 99d656e at 2026-08-30 03:27:

No log files found

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for 657863b at 2026-08-31 10:14:

No log files found

Full log here.

[romainschotter]

As discussed privately with @fmazzasc , I understand now that the Lambda and Omega had to be rebuilt because, somehow, the double-Omega signal events were lost in the strangeness building of the propagationService.

However, we should definitely look into it because there are no preselections in the strangeness builder in the propagation service, that should suppress double Omegas. In order to dive deeper into this, it was agreed with @fmazzasc that a switch should be added later this week to use the V0s/cascades from the strangeness builder in the propagation service.

In the meantime, I merge the PR.

Thank you very much!