Update proton selection cuts for femto study

Author: Yuanjing Ji

PWGDQ/Core/CutsLibrary.cxx

@@ -4499,7 +4499,7 @@ AnalysisCut* o2::aod::dqcuts::GetAnalysisCut(const char* cutName)
   if (!nameStr.compare("protonPVcut")) {
     cut->AddCut(VarManager::kTrackDCAxy, -0.1, 0.1);
     cut->AddCut(VarManager::kTrackDCAz, -0.15, 0.15);
-    cut->AddCut(VarManager::kPt, 0.15, 3);
+    cut->AddCut(VarManager::kPt, 0.4, 3);
     cut->AddCut(VarManager::kEta, -0.9, 0.9);
     cut->AddCut(VarManager::kIsSPDany, 0.5, 1.5);
     cut->AddCut(VarManager::kTPCchi2, 0.0, 4.0);