[PWGCF] Adding the ultra long range correlations to eta dependent studies

[MartijnLaarhoven]

Adding the ultra long range FT0A-FT0C correlations to the eta dependent studies

[MartijnLaarhoven]

Adding the ultra long range FT0A-FT0C correlations to the eta dependent studies

[Copilot]

Pull request overview

This PR extends the FlowDecorrelation analysis task to support FT0A–FT0C two-particle correlations, including new histogram axes, histogram definitions, correlation container axes, and new same-/mixed-event processing switches.

Changes:

• Added FT0A–FT0C Δη axis configuration and corresponding same/mixed histograms.
• Added FT0A–FT0C correlation container axis spec and initialization.
• Implemented processSameFt0aFt0c / processMixedFt0aFt0c and the FT0A–FT0C correlation-filling routine.

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[alibuild]

Error while checking build/O2Physics/o2 for c391c5e at 2026-03-10 11:56:

No log files found

Full log here.

[wenyaCern]

Dear @MartijnLaarhoven, Not sure if the pr needs approval or not, while the suggestion from AI Copilot works for you. Please contact us if you need approval

[MartijnLaarhoven]

Dear @MartijnLaarhoven, Not sure if the pr needs approval or not, while the suggestion from AI Copilot works for you. Please contact us if you need approval

Dear @wenyaCern , I have added one of the replies from AI Copilot, but the rest of the replies are not necessary for me. I would like to have approval for this pull request

[wenyaCern]

Dear @MartijnLaarhoven, Not sure if the pr needs approval or not, while the suggestion from AI Copilot works for you. Please contact us if you need approval

Dear @wenyaCern , I have added one of the replies from AI Copilot, but the rest of the replies are not necessary for me. I would like to have approval for this pull request

Dear @MartijnLaarhoven , I would approve once finished the pending check

[MartijnLaarhoven]

Dear @MartijnLaarhoven, Not sure if the pr needs approval or not, while the suggestion from AI Copilot works for you. Please contact us if you need approval

Dear @wenyaCern , I have added one of the replies from AI Copilot, but the rest of the replies are not necessary for me. I would like to have approval for this pull request

Dear @MartijnLaarhoven , I would approve once finished the pending check

Dear @wenyaCern the checks have finished, thank you