[PWGLF] Add event mixing in forwardlambdakzeroanalysis.cxx

[romainschotter]

No description provided.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 33 warnings, 🔕 0 disabled

[alibuild]

Auto-approving on behalf of @romainschotter.

[alibuild]

Error while checking build/O2Physics/code-check for f408bcd at 2026-09-16 08:27:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 4 errors and 78 warnings.'
Found 4 errors and 78 warnings.
++ [[ 4 -gt 0 ]]
++ cat /sw/BUILD/e6e777e7dbdabe9c51ee5ebde69a524a189fe9b7/O2Physics-code-check/errors.txt
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:109:22: error: unused variable 'nModesConst' [clang-diagnostic-unused-const-variable,-warnings-as-errors]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:373:3: error: no header providing "o2::framework::ColumnBinningPolicy" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1362:91: error: no header providing "o2::track::DefaultDCA" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1654:15: error: no header providing "TH3" is directly included [misc-include-cleaner,-warnings-as-errors]
++ [[ 78 -gt 0 ]]
++ cat /sw/BUILD/e6e777e7dbdabe9c51ee5ebde69a524a189fe9b7/O2Physics-code-check/warnings.txt
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:93:9: warning: function-like macro 'BITSET' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:94:9: warning: function-like macro 'BITCHECK' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:177:20: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:183:20: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:214:67: warning: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:244:65: warning: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:442:5: warning: function 'positivePt' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:443:5: warning: function 'negativePt' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:444:5: warning: function 'positivePz' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:445:5: warning: function 'negativePz' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:446:5: warning: function 'positivePtMc' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:447:5: warning: function 'negativePtMc' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:448:5: warning: function 'positivePzMc' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:449:5: warning: function 'negativePzMc' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:822:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:824:25: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:826:29: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:828:21: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:830:25: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1310:29: warning: use designated initializer list to initialize 'ArmenterosEllipse' [modernize-use-designated-initializers]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1519:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1524:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1529:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1534:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1539:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1656:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1658:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1660:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1662:13: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1723:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1725:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1727:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1729:13: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1789:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1791:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1793:31: warning: statement should be inside braces [readability-braces-around-statements]
[0 more errors; see full log]

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for b1ae992 at 2026-09-16 20:18:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 1 errors and 78 warnings.'
Found 1 errors and 78 warnings.
++ [[ 1 -gt 0 ]]
++ cat /sw/BUILD/8a820f4183d34391e7192a2ec8f542b12e0803ac/O2Physics-code-check/errors.txt
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:112:22: error: unused variable 'nModesConst' [clang-diagnostic-unused-const-variable,-warnings-as-errors]
++ [[ 78 -gt 0 ]]
++ cat /sw/BUILD/8a820f4183d34391e7192a2ec8f542b12e0803ac/O2Physics-code-check/warnings.txt
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:96:9: warning: function-like macro 'BITSET' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:97:9: warning: function-like macro 'BITCHECK' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:180:20: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:186:20: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:217:67: warning: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:247:65: warning: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:445:5: warning: function 'positivePt' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:446:5: warning: function 'negativePt' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:447:5: warning: function 'positivePz' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:448:5: warning: function 'negativePz' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:449:5: warning: function 'positivePtMc' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:450:5: warning: function 'negativePtMc' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:451:5: warning: function 'positivePzMc' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:452:5: warning: function 'negativePzMc' should be marked [[nodiscard]] [modernize-use-nodiscard]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:825:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:827:25: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:829:29: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:831:21: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:833:25: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1313:29: warning: use designated initializer list to initialize 'ArmenterosEllipse' [modernize-use-designated-initializers]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1522:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1527:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1532:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1537:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1542:32: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1659:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1661:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1663:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1665:13: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1726:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1728:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1730:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1732:13: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1792:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1794:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1796:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1798:13: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1858:26: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Strangeness/forwardlambdakzeroanalysis.cxx:1860:31: warning: statement should be inside braces [readability-braces-around-statements]
[0 more errors; see full log]

Full log here.