[PWGEM] Change pcmQCMC pT histograms from kTH1F to kTH1D (#15545)

Co-authored-by: Isabel Kantak <kantak@physi.uni-heidelberg.de>

Author: ikantak

PWGEM/PhotonMeson/Core/V0PhotonCandidate.h

@@ -71,7 +71,7 @@ struct V0PhotonCandidate {
     eleTPCSignal = ele.tpcSignal();
     eleITSClusterSizes = ele.itsClusterSizes();
 
-    chi2ndf = v0DecayVtx.GetChi2() / v0DecayVtx.GetNDF();
+    chi2ndf = v0PV.GetChi2() / v0PV.GetNDF();
     pca = posDecayVtx.GetDistanceFromParticle(eleDecayVtx);
     eta = RecoDecay::eta(std::array{px, py, pz});
     posEta = RecoDecay::eta(std::array{posPx, posPy, posPz});

PWGEM/PhotonMeson/Tasks/pcmQCMC.cxx

@@ -233,9 +233,9 @@ struct PCMQCMC {
     const AxisSpec axis_rapidity{{0.0, +0.8, +0.9}, "rapidity |y_{#gamma}|"};
 
     if (doprocessGen) {
-      fRegistry.add("Generated/hPt", "pT;p_{T} (GeV/c)", kTH1F, {axis_pt}, true);
-      fRegistry.add("Generated/hPtY", "Generated info", kTH2F, {axis_pt, axis_rapidity}, true);
-      fRegistry.add("Generated/hPt_ConversionPhoton", "converted photon pT;p_{T} (GeV/c)", kTH1F, {axis_pt}, true);
+      fRegistry.add("Generated/hPt", "pT;p_{T} (GeV/c)", kTH1D, {axis_pt}, true);
+      fRegistry.add("Generated/hPtY", "Generated info", kTH2D, {axis_pt, axis_rapidity}, true);
+      fRegistry.add("Generated/hPt_ConversionPhoton", "converted photon pT;p_{T} (GeV/c)", kTH1D, {axis_pt}, true);
       fRegistry.add("Generated/hY_ConversionPhoton", "converted photon y;rapidity y", kTH1F, {{40, -2.0f, 2.0f}}, true);
       fRegistry.add("Generated/hPhi_ConversionPhoton", "converted photon #varphi;#varphi (rad.)", kTH1F, {{180, 0, o2::constants::math::TwoPI}}, true);
       fRegistry.add("Generated/hXY", "conversion point in XY MC;V_{x} (cm);V_{y} (cm)", kTH2F, {{800, -100.0f, 100.0f}, {800, -100.0f, 100.0f}}, true);