//slot 0 : default output tree (by default handled by AliAnalysisTaskSE)
AliAnalysisDataContainer *coutput0 = mgr->CreateContainer("ctree0", TTree::Class(),AliAnalysisManager::kOutputContainer,"output.root");
// output TH1I for event counting
//slot 0 : default output tree (by default handled by AliAnalysisTaskSE)
AliAnalysisDataContainer *coutput0 = mgr->CreateContainer("ctree0", TTree::Class(),AliAnalysisManager::kOutputContainer,"output.root");
// output TH1I for event counting