Ttbar plus jets study

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(Added articles by Holdom comparing generators)
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* ALPGEN
* ALPGEN
* MADGRAPH
* MADGRAPH
-
* PYTHIA
+
* PYTHIA  
 +
* Note also interest from MPI subgroup: ttbar + 2jets from double parton interactions as background to b' searches, cf., studies with PYTHIA 8 carried out and reported on by P. Bartalini at Les Houches.
We plan to systematically compare the codes using relevant
We plan to systematically compare the codes using relevant
distributions, understand and learn from observed differences.
distributions, understand and learn from observed differences.
-
Interested people so far: Joanna Weng, Frank-Peter Schilling, Peter Uwer, Roberto Chierici ''and'' Stephen Mrenna
+
Interested people so far: Joanna Weng, Frank-Peter Schilling (main responsible), Peter Uwer, Roberto Chierici, S. Hoeche, Stephen Mrenna, P. Skands, P. Bartalini (MPI: ttbar+2jets).
Mrenna's References
Mrenna's References
Line 67: Line 68:
     SLACcitation  = "%%CITATION = 0810.0452;%%"
     SLACcitation  = "%%CITATION = 0810.0452;%%"
     }
     }
 +
 +
Skands' References
   4. http://arxiv.org/abs/0705.1736
   4. http://arxiv.org/abs/0705.1736
Line 97: Line 100:
           SLACcitation  = "%%CITATION = HEP-PH/0702037;%%"
           SLACcitation  = "%%CITATION = HEP-PH/0702037;%%"
       }
       }
 +
 +
  6. http://arxiv.org/abs/hep-ph/0511306
 +
 +
    @Article{Skands:2005bj,
 +
    author    = "Skands, Peter and Plehn, Tilman and Rainwater, David",
 +
    title    = "{QCD radiation in the production of high $\hat{s}$ final
 +
                  states}",
 +
    journal  = "ECONF",
 +
    volume    = "C0508141",
 +
    year      = "2005",
 +
    pages    = "ALCPG0417",
 +
    eprint    = "hep-ph/0511306",
 +
    archivePrefix = "arXiv",
 +
    SLACcitation  = "%%CITATION = HEP-PH/0511306;%%"
 +
    }

Current revision

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
  • Note also interest from MPI subgroup: ttbar + 2jets from double parton interactions as background to b' searches, cf., studies with PYTHIA 8 carried out and reported on by P. Bartalini at Les Houches.

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 (main responsible), Peter Uwer, Roberto Chierici, S. Hoeche, Stephen Mrenna, P. Skands, P. Bartalini (MPI: ttbar+2jets).

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;%%"
    }

Skands' References

 4. http://arxiv.org/abs/0705.1736
    @Article{Holdom:2007ap,
    author    = "Holdom, B.",
    title     = "{The heavy quark search at the LHC}",
    journal   = "JHEP",
    volume    = "08",
    year      = "2007",
    pages     = "069",
    eprint    = "0705.1736",
    archivePrefix = "arXiv",
    primaryClass  =  "hep-ph",
    doi       = "10.1088/1126-6708/2007/08/069",
    SLACcitation  = "%%CITATION = 0705.1736;%%"
    }
 5. http://arxiv.org/abs/hep-ph/0702037
     @Article{Holdom:2007nw,
          author    = "Holdom, B.",
          title     = "{t' at the LHC: The physics of discovery}",
          journal   = "JHEP",
          volume    = "03",
          year      = "2007",
          pages     = "063",
          eprint    = "hep-ph/0702037",
          archivePrefix = "arXiv",
          SLACcitation  = "%%CITATION = HEP-PH/0702037;%%"
     }
 6. http://arxiv.org/abs/hep-ph/0511306
    @Article{Skands:2005bj,
    author    = "Skands, Peter and Plehn, Tilman and Rainwater, David",
    title     = "{QCD radiation in the production of high $\hat{s}$ final
                 states}",
    journal   = "ECONF",
    volume    = "C0508141",
    year      = "2005",
    pages     = "ALCPG0417",
    eprint    = "hep-ph/0511306",
    archivePrefix = "arXiv",
    SLACcitation  = "%%CITATION = HEP-PH/0511306;%%"
    }
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