separate max eta range for full region and subevent region

Author: Luzhiyongg

PWGCF/Flow/Tasks/flowTask.cxx

@@ -73,7 +73,8 @@ struct FlowTask {
   O2_DEFINE_CONFIGURABLE(cfgCutPtMax, float, 10.0f, "Maximal pT for all tracks")
   O2_DEFINE_CONFIGURABLE(cfgCutEta, float, 0.8f, "Eta range for tracks")
   O2_DEFINE_CONFIGURABLE(cfgEtaPtPt, float, 0.4, "eta range for pt-pt correlations")
-  O2_DEFINE_CONFIGURABLE(cfgEtaGapPtPt, float, 0.2, "eta gap for pt-pt correlations, cfgEtaGapPtPt<|eta|<cfgEtaPtPt")
+  O2_DEFINE_CONFIGURABLE(cfgEtaSubPtPt, float, 0.8, "eta range for subevent pt-pt correlations")
+  O2_DEFINE_CONFIGURABLE(cfgEtaGapPtPt, float, 0.2, "eta gap for pt-pt correlations, cfgEtaGapPtPt<|eta|<cfgEtaSubPtPt")
   O2_DEFINE_CONFIGURABLE(cfgEtaGapPtPtEnabled, bool, false, "switch of subevent pt-pt correlations")
   O2_DEFINE_CONFIGURABLE(cfgCutChi2prTPCcls, float, 2.5f, "max chi2 per TPC clusters")
   O2_DEFINE_CONFIGURABLE(cfgCutTPCclu, float, 50.0f, "minimum TPC clusters")
@@ -656,6 +657,9 @@ struct FlowTask {
   {
     if (std::abs(track.eta()) < cfgEtaPtPt) {
       (dt == kGen) ? fFCptgen->fill(1., track.pt()) : fFCpt->fill(weff, track.pt());
+    }
+    
+    if (std::abs(track.eta()) < cfgEtaSubPtPt) {
       if (cfgEtaGapPtPtEnabled) {
         if (track.eta() < -1. * cfgEtaGapPtPt) {
           (dt == kGen) ? fFCptgen->fillSub1(1., track.pt()) : fFCpt->fillSub1(weff, track.pt());