void ana_lambdac_task(TString Fname="data/test", int nevts=0, double pbarmom = 10.2)
{
	// *** set this to your output path
	TString OutFile = Fname;
		
	// *** the output file for FairRunAna
	TString InFile  = Fname;
	if (!InFile.EndsWith(".root")) InFile+="_fast.root";

	// *** initialization
	FairLogger::GetLogger()->SetLogToFile(kFALSE);

	FairRunAna* fRun = new FairRunAna();
	fRun->SetWriteRunInfoFile(kFALSE);
	fRun->SetInputFile(InFile);
	fRun->SetOutputFile(OutFile+"_taskana.root");


	// *** take constant field; needed for PocaVtx
	RhoCalculationTools::ForceConstantBz(20.0);

	// *** HERE OUR ANALYSIS TASK GOES!
     
	PndLambdacAnaTask *lambdacTask = new PndLambdacAnaTask(pbarmom);
	fRun->AddTask(lambdacTask);

	// *** and run analysis
	fRun->Init(); 
	fRun->Run(0,nevts);	
}