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N(N)LO Tools

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Krauss, F
Description
Due to the large number of people who subscribed we decided to split into some semi-parallel working groups, namely Experimental needs, Higgs, NNLO, and NLO. Experimental Needs and NNLO will operate in parallel as will Higgs and NLO.

The primary aim is to discuss what higher order tools are required to maximise the physics return of the LHC and assist the experimenters in analysing data.

The Experimental Needs subgroup will be tasked with compiling a list of required tools and providing a list of those tools that are required and still to be constructed.

The Higgs subgroup will focus on issues connected with the Higgs signal and backgrounds, and generators, bearing in mind the needs for first detecting the Higgs and second measuring the properties of the Higgs.

The NLO subgroup will focus on methods and algorithms for automating the production of NLO codes for arbitrary multiparticle final states, including both massless and massive particles, the numerical evaluation of loop integrals and the interface with the parton shower.

The main issues in the NNLO session will be the handling of the double unresolved real radiation contributions, new methods for evaluating the phase space integrals, two-loop integrals and the assembly of the various contributions to give predictions for physical observables.

  • Tuesday, 8 July
    • 08:45 → 10:45
      Introduction TH Auditorium (CERN)

      TH Auditorium

      CERN
      • 08:45
        Introduction 15m TH Auditorium

        TH Auditorium

        CERN
        Speaker: Krauss, F
      • 09:00
        Introduction to ME WG activities 25m TH Auditorium

        TH Auditorium

        CERN
        Speaker: michelangelo.mangano@cern.ch
      • 09:30
        Experimental Wishlist 25m TH Auditorium

        TH Auditorium

        CERN
        Speaker: Mellado, Bruce (University of Wisconsin (ATLAS))
        transparencies
      • 10:00
        Higgs production at the LHC -- Theory Status 25m TH Auditorium

        TH Auditorium

        CERN
        Speaker: Harlander, Robert (CERN-TH)
        transparencies
    • 13:45 → 15:45
      Experimental Needs 1 40-SS-C01 (CERN)

      40-SS-C01

      CERN

      Presentations and discussion

      of actual experiences with NLO
      codes by experimenters

      • 13:45
        Experiences with NLO programs for the pp->gamma gamma channel 30m 40-SS-C01

        40-SS-C01

        CERN
        Speaker: Unal, G. (LAL, Orsay)
        transparencies
      • 14:25
        HO Effects in ttH -> lnqqbbbb Searches at LHC 30m 40-SS-C01

        40-SS-C01

        CERN
        Speaker: Drollinger, V. (University of Padova, CMS)
        more information
        transparencies
      • 15:05
        tt production studies using various MC's 25m 40-SS-C01

        40-SS-C01

        CERN
        Speaker: Paganis, S. (University of Wisconsin)
        transparencies
    • 13:45 → 15:45
      NNLO 1 40/R-C10 (CERN)

      40/R-C10

      CERN

      20
      Show room on map

      Discussion of current state of the art

      in NNLO calculations

      • 13:45
        Status of NNLO virtual corrections 30m 40/R-C10

        40/R-C10

        CERN

        20
        Show room on map
        Speaker: Gehrmann, T (RWTH Aachen)
        transparencies
      • 14:25
        A unified approach and master formulae for NNLO soft and virtual QCD corrections 40m 40/R-C10

        40/R-C10

        CERN

        20
        Show room on map
        Speaker: Kidonakis, N (Cambridge)
      • 15:10
        Drell-Yan rapidity distribution in NNLO QCD 30m 40/R-C10

        40/R-C10

        CERN

        20
        Show room on map
        Speaker: Anastasiou, C (SLAC)
        transparencies
    • 16:15 → 18:15
      Experimental Needs 2 40-SS-C01 (CERN)

      40-SS-C01

      CERN

      Survey of exisiting codes/
      setting up a toolkit page

      • 16:15
        Introduction to the discussion 15m 40-SS-C01

        40-SS-C01

        CERN
        Speaker: Carli, T (CERN)
    • 16:15 → 18:15
      NNLO 2 40/R-C10 (CERN)

      40/R-C10

      CERN

      20
      Show room on map

      Discussion of methods for isolating singularities
      in double unbresolved radiation

      • 16:15
        Extending the subtraction method to NNLO 50m 40/R-C10

        40/R-C10

        CERN

        20
        Show room on map
        Speaker: Weinzierl, S (Parma)
        transparencies
      • 17:15
        Real Emission at Higher Orders 50m 40/R-C10

        40/R-C10

        CERN

        20
        Show room on map
        Speaker: Kosower, D (Saclay)
  • Wednesday, 9 July
    • 09:00 → 10:45
      Experimental Needs 3 503/1-001 - Council Chamber (CERN)

      503/1-001 - Council Chamber

      CERN

      162
      Show room on map

      Plenary discussion of tools that need to be constructed

    • 13:45 → 15:45
      Higgs 1 503/1-001 - Council Chamber (CERN)

      503/1-001 - Council Chamber

      CERN

      162
      Show room on map

      Higgs production channels

      • 13:45
        Diffractive Higgs Production 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: De Roeck, Albert
        more information
        more information
        more information
      • 14:10
        Gluon fusion 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Massimiliano Grazzini (CERN)
        transparencies
      • 14:35
        Vector Boson Fusion at NLO 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Carlo Oleari (IPPP Durham)
        transparencies
      • 15:00
        Charged Higgs Production 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Tilman Plehn (CERN)
        transparencies
    • 13:45 → 15:45
      NLO 1 TH Auditorium (CERN-TH)

      TH Auditorium

      CERN-TH

      Introduction to existing,

      fully automated tree-level codes

      • 13:45
        Introduction to Madgraph/MadEvent 25m TH Auditorium

        TH Auditorium

        CERN-TH
        Speaker: Stelzer, T. (Illinois U., Urbana)
        transparencies
      • 14:25
        Introduction to HELAC/PHEGAS 25m TH Auditorium

        TH Auditorium

        CERN-TH
        Speaker: Papadopoulos, C. (CERN TH)
        transparencies
      • 15:05
        Introduction to AMEGIC 25m TH Auditorium

        TH Auditorium

        CERN-TH
        Speaker: Krauss, F
        more information
    • 16:15 → 18:15
      Higgs 2 503/1-001 - Council Chamber (CERN)

      503/1-001 - Council Chamber

      CERN

      162
      Show room on map

      Discussion of signals

      and backgrounds

      What is there/missing?

      • 16:15
        ttH/bbH 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Spira, M.
        transparencies
      • 16:45
        K-factors in H -> ZZ* -> 4l 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Bruce Mellado (University of Wisconsin (ATLAS))
        more information
        more information
      • 17:15
        The Higgs -> gamma gamma background at NLO -- what else? 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Thomas Binoth (Edinburgh U.)
        transparencies
      • 17:45
        gamma gamma + jet BG at NLO 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Vittorio del Duca (INFN, Turino)
        more information
  • Thursday, 10 July
    • 09:00 → 11:00
      Gauge invariance issues TH Auditorium

      TH Auditorium

      Joint session with ME working group, see their agenda for details

    • 09:00 → 10:45
      Higgs 3 503/1-001 - Council Chamber (CERN)

      503/1-001 - Council Chamber

      CERN

      162
      Show room on map

      Survey of tools for Higgs physics

      short description/evaluation

      • 09:00
        Higgs couplings at the LHC 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Dieter Zeppenfeld (Wisconsin U.)
      • 09:30
        Need for Tools 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Elzbieta Richter-Was (Jagiellonian University)
        transparencies
      • 10:00
        Higher Order Tools for Higgs Physics 15m 503/1-001 - Council Chamber

        503/1-001 - Council Chamber

        CERN

        162
        Show room on map
        Speaker: Spira, M.
        transparencies
    • 13:45 → 15:45
      NLO 2 Room B (CERN-TH)

      Room B

      CERN-TH
      • 13:45
        Multiparticle amplitudes at one-loop 25m Room B

        Room B
        Speaker: Binoth, T (Edinburgh)
        more information
      • 14:45
        General subtraction method for calculating one-loop matrix element numerically 25m Room B

        Room B
        Speaker: Nagy, Z (Oregon)
        transparencies
    • 16:30 → 18:30
      Experimental Needs 4 TH Auditorium (CERN-TH)

      TH Auditorium

      CERN-TH

      Interface ME+PS : LO+NLO

      review of CKKW and MC@NLO

      survey of available/lacking codes

      • 16:30
        Merging of ME & PS @ LO 25m TH Auditorium

        TH Auditorium
        Speaker: Schälicke, A. (ITP. TU Dresden)
        transparencies
      • 17:00
        MC@NLO 25m TH Auditorium

        TH Auditorium

        CERN-TH
        Speaker: Frixione, S.
        more information
      • 17:40
        NLO QCD with parton showers 25m TH Auditorium

        TH Auditorium
        Speaker: Soper, D (U of Oregon)
    • 16:30 → 18:30
      NNLO 3 61/1-007 - Room B (CERN)

      61/1-007 - Room B

      CERN

      12
      Show room on map

      Further discussions and presentations

      • 16:30
        Status of three-loop splitting functions 20m 61/1-007 - Room B

        61/1-007 - Room B

        CERN

        12
        Show room on map
        Speaker: Moch, S.-O. (DESY, Zeuthen)
        transparencies
      • 17:00
        Evolution kernels from splitting amplitudes. 25m 61/1-007 - Room B

        61/1-007 - Room B

        CERN

        12
        Show room on map
        Speaker: Uwer, P (Karlsruhe)
        transparencies
      • 17:40
        Numerical methods for multiloop and NNLO phase space integrals 20m 61/1-007 - Room B

        61/1-007 - Room B

        CERN

        12
        Show room on map
        Speaker: Heinrich, G (IPPP, Durham)
        transparencies
  • Friday, 11 July
    • 09:00 → 11:00
      NLO 3 TH Auditorium (CERN)

      TH Auditorium

      CERN

      Discussion of progress in one-loop

      multi-particle amplitudes

      • 09:00
        NLO QCD by numerical integration 25m TH Auditorium

        TH Auditorium

        CERN
        Speaker: Soper, D (U of Oregon)
      • 09:40
        Introduction to GRACE 25m TH Auditorium

        TH Auditorium

        CERN
        Speaker: Kurihara, Y. (KEK)
      • 10:20
        Numerical evaluation of hexagon amplitudes 15m TH Auditorium

        TH Auditorium

        CERN
        Speaker: Kauer, N (Edinburgh)
    • 09:00 → 11:00
      Overflow 1 61/1-007 - Room B (CERN)

      61/1-007 - Room B

      CERN

      12
      Show room on map
    • 14:00 → 16:00
      NNLO summaries TH Auditorium (CERN)

      TH Auditorium

      CERN
      • 14:00
        Experimental Needs 25m TH Auditorium

        TH Auditorium

        CERN
        transparencies
      • 14:30
        NLO 25m TH Auditorium

        TH Auditorium

        CERN
      • 15:00
        Higgs 25m TH Auditorium

        TH Auditorium

        CERN
      • 15:30
        NNLO summary 25m TH Auditorium

        TH Auditorium

        CERN
        Speaker: Glover, E.W.N (IPPP, Durham)
        transparencies
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