[PWGDQ] Update to TH1 mass width in histogramLibrary (#12852)

Author: shreyasiacharya

PWGDQ/Core/HistogramsLibrary.cxx

@@ -982,7 +982,7 @@ void o2::aod::dqhistograms::DefineHistograms(HistogramManager* hm, const char* h
       hm->AddHistogram(histClass, "Mass", "", false, 500, 0.0, 5.0, VarManager::kMass);
       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);
+      hm->AddHistogram(histClass, "Mass_Pt", "", false, 500, 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;