[aferrero2707]

• add proper handling of ambiguous tracks with multiple compatible collisions, and output the ambiguous associations in the derived tables.
• improve selection of dimuon candidates to be stored in the derived tables, adding a minimum mass cut as well as specific momentum and pT cuts.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 77 warnings, 🔕 10 disabled

[alibuild]

Error while checking build/O2Physics/staging for e453f8e at 2026-10-31 12:09:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/muonGlobalAlignment.cxx:2484:55: error: comparison of integer expressions of different signedness: 'int32_t' {aka 'int'} and 'std::vector<std::unique_ptr<std::vector<int> > >::size_type' {aka 'long unsigned int'} [-Werror=sign-compare]
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for e453f8e at 2026-10-31 11:31:

No log files found

Full log here.

[alibuild]

Error while checking build/O2Physics/o2 for e453f8e at 2026-10-31 12:06:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/muonGlobalAlignment.cxx:2484:55: error: comparison of integer expressions of different signedness: 'int32_t' {aka 'int'} and 'std::vector<std::unique_ptr<std::vector<int> > >::size_type' {aka 'long unsigned int'} [-Werror=sign-compare]
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for 83a5d50 at 2026-10-31 12:21:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'To reproduce the results below locally, run: '\''aliBuild build O2Physics-code-check -e ALIBUILD_BASE_HASH=upstream/master'\''.'
To reproduce the results below locally, run: 'aliBuild build O2Physics-code-check -e ALIBUILD_BASE_HASH=upstream/master'.
++ echo 'To apply all automatic fixes, add the '\''-e O2PHYSICS_CHECKER_FIX=1'\'' option.'
To apply all automatic fixes, add the '-e O2PHYSICS_CHECKER_FIX=1' option.
++ echo 'See the documentation for more details at: <https://aliceo2group.github.io/analysis-framework/docs/tools/#running-with-o2physics-code-check>.'
See the documentation for more details at: <https://aliceo2group.github.io/analysis-framework/docs/tools/#running-with-o2physics-code-check>.
++ echo 'Found 2 errors and 1 warnings.'
Found 2 errors and 1 warnings.
++ [[ 2 -gt 0 ]]
++ cat /sw/BUILD/4626d4ecb6799f362a033150a2a367354e19e999/O2Physics-code-check/errors.txt
PWGDQ/Tasks/muonGlobalAlignment.cxx:24:1: error: included header FwdTrackReAlignTables.h is not used directly [misc-include-cleaner,-warnings-as-errors]
PWGDQ/Tasks/muonGlobalAlignment.cxx:660:45: error: C-style casts are discouraged; use static_cast/const_cast/reinterpret_cast [google-readability-casting,-warnings-as-errors]
++ [[ 1 -gt 0 ]]
++ cat /sw/BUILD/4626d4ecb6799f362a033150a2a367354e19e999/O2Physics-code-check/warnings.txt
PWGDQ/Tasks/muonGlobalAlignment.cxx:278:9: warning: macro 'PROCESS_DERIVED_TABLES' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
++ [[ 2 -gt 0 ]]
++ exit 1
--

Full log here.

[aferrero2707]

@mguilbau @lucamicheletti93 @iarsene could you please have a look at this PR and merge it if ok? It only touches the code for the alignment analysis, and is needed in order to refine the extraction of the J/psi invariant mass position and width with different alignment versions.
The code-check errors are harmless and can be fixed in a future PR, to avoid re-running the CI once more on this one...
Thanks!

[lucamicheletti93]

Thanks a lot @aferrero2707 ! I'm approving the PR