[PWG-DQ] added an inv mass histogram with fine pt binning in the jpsi photoproduction range (#7685)

* solve conflicts

* clang fixes

* removed duplicate function

* Added a inv mass histogram with fine binning in the photoproduction pt range

* clang format

---------

Co-authored-by: Ionut Cristian Arsene <iarsene@cern.ch>

Author: iarsene

PWGDQ/Core/HistogramsLibrary.cxx

@@ -812,12 +812,24 @@ void o2::aod::dqhistograms::DefineHistograms(HistogramManager* hm, const char* h
       hm->AddHistogram(histClass, "Mass_HighRange", "", false, 375, 0.0, 15.0, VarManager::kMass);
       hm->AddHistogram(histClass, "Pt", "", false, 2000, 0.0, 20., VarManager::kPt);
       hm->AddHistogram(histClass, "Mass_Pt", "", false, 125, 0.0, 5.0, VarManager::kMass, 40, 0.0, 20.0, VarManager::kPt);
+      double massBins[76];
+      for (int i = 0; i < 76; i++) {
+        massBins[i] = 1.5 + i * 0.04;
+      }
+      double ptBins[70];
+      for (int i = 0; i <= 50; i++) {
+        ptBins[i] = i * 0.01;
+      }
+      for (int i = 1; i <= 19; i++) {
+        ptBins[50 + i] = 0.5 + i * 0.5;
+      }
+      hm->AddHistogram(histClass, "Mass_PtFine", "", false, 75, massBins, VarManager::kMass, 69, ptBins, VarManager::kPt);
       hm->AddHistogram(histClass, "Eta_Pt", "", false, 40, -2.0, 2.0, VarManager::kEta, 40, 0.0, 20.0, VarManager::kPt);
       hm->AddHistogram(histClass, "Mass_VtxZ", "", true, 30, -15.0, 15.0, VarManager::kVtxZ, 500, 0.0, 5.0, VarManager::kMass);
       if (subGroupStr.Contains("pbpb")) {
         hm->AddHistogram(histClass, "Mass_CentFT0C", "", false, 125, 0.0, 5.0, VarManager::kMass, 20, 0.0, 100.0, VarManager::kCentFT0C);
         hm->AddHistogram(histClass, "Pt_CentFT0C", "", false, 100, 0.0, 10.0, VarManager::kPt, 20, 0.0, 100.0, VarManager::kCentFT0C);
-        hm->AddHistogram(histClass, "Mass_Pt_CentFT0C", "", false, 125, 0.0, 5.0, VarManager::kMass, 100, 0.0, 10.0, VarManager::kPt, 10, 0.0, 100.0, VarManager::kCentFT0C);
+        hm->AddHistogram(histClass, "Mass_Pt_CentFT0C", "", false, 75, 1.5, 4.5, VarManager::kMass, 20, 0.0, 10.0, VarManager::kPt, 10, 0.0, 100.0, VarManager::kCentFT0C);
       }
       if (subGroupStr.Contains("mult")) {
         hm->AddHistogram(histClass, "Mass_Pt_MultFV0A", "", false, 200, 0.0, 5.0, VarManager::kMass, 40, 0.0, 40.0, VarManager::kPt, 100, 0.0, 25000.0, VarManager::kMultFV0A);