[PWGEM/Dilepton] minor change of nbins (AliceO2Group#16821)

Author: dsekihat

PWGEM/Dilepton/Core/DileptonSV.h

@@ -656,7 +656,7 @@ struct DileptonSV {
 
     if (cfgAnalysisType == static_cast<int>(o2::aod::pwgem::dilepton::utils::pairutil::DileptonAnalysisType::kQC)) {
       fRegistry.add("Pair/same/uls/hs", "dilepton", o2::framework::HistType::kTHnSparseD, {axis_mass, axis_pt, axis_dca, axis_y, axis_cpa}, true);
-      fRegistry.add("Pair/same/uls/hDeltaEtaDeltaPhi", "#Delta#eta-#Delta#varphi between 2 tracks;#Delta#varphi (rad.);#Delta#eta;", o2::framework::HistType::kTH2D, {{180, -M_PI, M_PI}, {400, -2, +2}}, true);
+      fRegistry.add("Pair/same/uls/hDeltaEtaDeltaPhi", "#Delta#eta-#Delta#varphi between 2 tracks;#Delta#varphi (rad.);#Delta#eta;", o2::framework::HistType::kTH2D, {{360, -M_PI, M_PI}, {400, -2, +2}}, true);
 
       if constexpr (pairtype == o2::aod::pwgem::dilepton::utils::pairutil::DileptonPairType::kDielectron) {
         fRegistry.add("Pair/same/uls/hMvsPhiV", "m_{ee} vs. #varphi_{V};#varphi_{V} (rad.);m_{ee} (GeV/c^{2})", o2::framework::HistType::kTH2D, {{90, 0, M_PI}, {100, 0.0f, 1.0f}}, true); // phiv is only for dielectron