[PWGCF] Addition of PID specific long-range correlations

[Preet-Bhanjan]

No description provided.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 3 warnings, 🔕 0 disabled

[alibuild]

Error while checking build/O2Physics/code-check for 367d126 at 2026-09-17 04:09:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc10_x86-64-slc10_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:416:29: error: no matching function for call to 'o2::framework::AxisSpec::AxisSpec(<brace-enclosed initializer list>)'
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/staging for 367d126 at 2026-09-17 04:14:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:416:29: error: no matching function for call to 'o2::framework::AxisSpec::AxisSpec(<brace-enclosed initializer list>)'
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/o2 for 367d126 at 2026-09-17 04:45:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc10_x86-64-slc10_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:416:29: error: no matching function for call to 'o2::framework::AxisSpec::AxisSpec(<brace-enclosed initializer list>)'
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/staging for e54c43f at 2026-09-17 10:15:

## sw/BUILD/O2Physics-latest/log
c++: internal compiler error: Aborted signal terminated program collect2
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for e54c43f at 2026-09-17 10:50:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 2 errors and 4 warnings.'
Found 2 errors and 4 warnings.
++ [[ 2 -gt 0 ]]
++ cat /sw/BUILD/b75b6f410862687f20fd34319cd617b2af86cf61/O2Physics-code-check/errors.txt
PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:31:1: error: included header GRPMagField.h is not used directly [misc-include-cleaner,-warnings-as-errors]
PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:1076:41: error: no header providing "Int_t" is directly included [misc-include-cleaner,-warnings-as-errors]
++ [[ 4 -gt 0 ]]
++ cat /sw/BUILD/b75b6f410862687f20fd34319cd617b2af86cf61/O2Physics-code-check/warnings.txt
PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:1099:14: warning: variable 'tpcNSigma' is not initialized [cppcoreguidelines-init-variables]
PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:1099:25: warning: variable 'tpcExpSigma' is not initialized [cppcoreguidelines-init-variables]
PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:1099:38: warning: variable 'tofNSigma' is not initialized [cppcoreguidelines-init-variables]
PWGCF/TwoParticleCorrelations/Tasks/pidLongRange.cxx:1099:49: warning: variable 'itsNSigma' is not initialized [cppcoreguidelines-init-variables]
++ [[ 2 -gt 0 ]]
++ exit 1
--

Full log here.

[vkucera]

@Preet-Bhanjan Please fix the errors and warnings before merging.