Ttbar plus jets study

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The idea is to perform a systematic study and comparison of the ttbar plus jets process, using the available codes, in particular

  • ttbar+jet NLO (Dittmaier, Uwer, Weinzierl)
  • MC@NLO
  • POWHEG
  • ALPGEN
  • MADGRAPH
  • PYTHIA

We plan to systematically compare the codes using relevant distributions, understand and learn from observed differences.

Interested people so far: Joanna Weng, Frank-Peter Schilling, Peter Uwer, Roberto Chierici and Stephen Mrenna

Mrenna's References

 1. http://arxiv.org/abs/hep-ph/0611129
    @Article{Mangano:2006rw,
    author    = "Mangano, Michelangelo L. and Moretti, Mauro and Piccinini,
                 Fulvio and Treccani, Michele",
    title     = "{Matching matrix elements and shower evolution for top-
                 quark production in hadronic collisions}",
    journal   = "JHEP",
    volume    = "01",
    year      = "2007",
    pages     = "013",
    eprint    = "hep-ph/0611129",
    archivePrefix = "arXiv",
    SLACcitation  = "%%CITATION = HEP-PH/0611129;%%"
    }
 2. http://arxiv.org/abs/0810.5350
    @Article{Alwall:2008qv,
    author    = "Alwall, Johan and de Visscher, Simon and Maltoni, Fabio",
    title     = "{QCD radiation in the production of heavy colored particles
                 at the LHC}",
    journal   = "JHEP",
    volume    = "02",
    year      = "2009",
    pages     = "017",
    eprint    = "0810.5350",
    archivePrefix = "arXiv",
    primaryClass  =  "hep-ph",
    doi       = "10.1088/1126-6708/2009/02/017",
    SLACcitation  = "%%CITATION = 0810.5350;%%"
    }
 3. http://arxiv.org/abs/0810.0452
    @Article{Dittmaier:2008uj,
    author    = "Dittmaier, S. and Uwer, P. and Weinzierl, S.",
    title     = "{Hadronic top-quark pair production in association with a
                 hard jet at next-to-leading order QCD: Phenomenological
                 studies for the Tevatron and the LHC}",
    journal   = "Eur. Phys. J.",
    volume    = "C59",
    year      = "2009",
    pages     = "625-646",
    eprint    = "0810.0452",
    archivePrefix = "arXiv",
    primaryClass  =  "hep-ph",
    doi       = "10.1140/epjc/s10052-008-0816-y",
    SLACcitation  = "%%CITATION = 0810.0452;%%"
    }
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