cms.EDProducer("PFClusterRefCandidateMerger",\ 
    src = cms.VInputTag("hltPfClusterRefsForJetsHCAL", "hltPfClusterRefsForJetsECAL", "hltPfClusterRefsForJetsHF", "hltPfClusterRefsForJetsHO", "hltPfClusterRefsForJetsHGCAL")\ 
)\