{"work":{"id":"42811f36-bc95-40a3-a267-0d5d421a96c4","openalex_id":null,"doi":null,"arxiv_id":"hep-ph/0204244","raw_key":null,"title":"Matching NLO QCD computations and parton shower simulations","authors":null,"authors_text":"S","year":2002,"venue":"hep-ph","abstract":"We propose a method for matching the next-to-leading order (NLO) calculation of a given QCD process with a parton shower Monte Carlo (MC) simulation. The method has the following features: fully exclusive events are generated, with hadronization according to the MC model; total exclusive rates are accurate to NLO; NLO results for distributions are recovered upon expansion in $\\alpha_S$; hard emissions are treated as in NLO computations while soft/collinear emissions are handled by the MC simulation, with the same logarithmic accuracy as the MC; and matching between the hard- and soft/collinear-emission regions is smooth. A fraction of events with negative weight is generated, but unweighting remains possible with reasonable efficiency. The method is clarified using a simple toy model, and illustrated by application to the hadroproduction of W$^+$W$^-$ pairs.","external_url":"https://arxiv.org/abs/hep-ph/0204244","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-07-10T02:36:42.766487+00:00","pith_arxiv_id":"hep-ph/0204244","created_at":"2026-05-09T06:20:42.803652+00:00","updated_at":"2026-07-10T02:36:42.766487+00:00","title_quality_ok":true,"display_title":"Matching NLO QCD computations and parton shower simulations","render_title":"Matching NLO QCD computations and parton shower simulations"},"hub":{"state":{"work_id":"42811f36-bc95-40a3-a267-0d5d421a96c4","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":21,"external_cited_by_count":null,"distinct_field_count":3,"first_pith_cited_at":"2004-09-13T15:09:18+00:00","last_pith_cited_at":"2026-07-09T17:29:55+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-08-22T17:59:44.825738+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":6},{"context_role":"method","n":4},{"context_role":"baseline","n":1}],"polarity_counts":[{"context_polarity":"background","n":6},{"context_polarity":"use_method","n":4},{"context_polarity":"baseline","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}