Tools and Monte Carlo

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Les Houches Topics for WG3 (Tools and Monte Carlo)
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The Tools/MC Group spans both Les Houches sessions. To minimize confusion, each session has been assigned its own wiki page;
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= Monte Carlos and Tuning =
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= Tentative Proceedings Table of Content (120p total) =
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* Matching: see below
 
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* PDFs in Monte Carlos: see below
 
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* QCD radiation patterns and New Showers: see below
 
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== Validity of tunes and Uncertainty Bands (Sessions 1 & 2) ==
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We have assembled the combined document in [https://cvs.hep.ucl.ac.uk/trac/LesHouchesMC09 this repository]. If you would like direct access to this repository, please see the instructions on the link. If you prefer to work independently, that's fine, just use the templates properly and mail your contributions to the conveners.
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* Automated Runing: Rivet & Professor (Session 1)
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* Can we define regions of validity for the physics implemented in the MC? e.g. What about small x, high rapidity effects (Session 1)
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* Can we obtain credible uncertainty bands with existing tools, or are new methods needed (Session 1)
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* Impact of tunes on new physics searches (Session 2)
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* Maybe we can produce "Demystifying Tuning: A Les Houches Guide to Tuning?" (Session 1)
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== Tuning in the presence of matching (Session 1) ==
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== Both Sessions ==
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* Chart the problem. Determine some Classic Examples.
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* How dependent on matching strategy?
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* Are there ways of revamping pre-matched tunes?
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* Influence of UE on matching
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== Common non-susy BSM scenario and benchmark points (Session 2) ==
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Wiki pages: <br>
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* Define & generate some benchmark common data sets?
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'''[[Tools and Monte Carlo Session 1 (SM)]]'''<br>
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'''[[Tools and Monte Carlo Session 2 (BSM)]]'''<br>
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== BSM Monte Carlo (Session 2) ==
 
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* Update the Durham / Les Houches BSM Tools repository
 
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* Are all interesting models currently implemented?
 
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* FeynRules & LanHEP; implementation of arbitrary models as an evolution of the BSM-LHEF.
 
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* QNUMBERS developments. 
 
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* Discussion (accord?) on how experiments and theory might best interact on new model testing
 
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* Possible training session on how to go from a model to event generation with new tools.
 
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* Impact of tunes on new physics searches (see tuning above).
 
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Proceedings:
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Contributions where we have a draft already in the repository are in '''bold face'''.
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= Matching =
 
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== Benchmarks for Matching (Sessions 1 & 2) ==
 
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* Experimental Benchmarks
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=== Interfaces ===
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* Theoretical Benchmarks / Pathological Observables
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* '''L. Lonnblad. LHEF v2. (12p)'''
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* New Physics Benchmarks?
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* J. Huston, F.-P. Schilling, P. Uwer. J.Weng NLO ROOT tuples. --> to NLO ML group.
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== With NLO/Multileg (Session 1) ==
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* '''S. Plaetzer. Merging Interface. (5p)'''
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* Multileg Matching at NLO, state of the field
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* '''F. Mahmoudi et al STATUS OF THE FLAVOUR LES HOUCHES ACCORD'''
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* What is needed for automating NLO matching?
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=== Tuning ===
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* Matching at NNLO ?
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* '''Rivet/Professor status and important data sets for tuning A. Buckley et al., (5p)'''
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* '''Towards uncertainty bands on MC tunes A. Buckley et al., (5p)'''
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* '''Tuning in the presence of matching P. Lenzi et al., (5p)'''
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* Things to be learned from exploring matching in N=4 SYM, etc?
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=== Beyond Fixed Order ===
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== Matching beyond Fixed Order (Session 1) ==
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* '''R. Chierici, E. Maina. MPI in top (5p)'''
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* In High-Energy Limit (low-x)
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* '''S. Weinzierl, Theory Tests. (3p)'''
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* Influence of UE on matching
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* '''D.Majumder, K. Mazumdar, T. Sjostrand A Matching scheme for Wgamma NLO ME generator and pythia parton shower'''
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* ...
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* '''M. Grazzini et al Higgs boson production via gluon fusion at the LHC: A comparative study.
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== Automated Matching for BSM Processes (Session 2) ==
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* '''J. M. Butterworth, F. Cordero, G. Piaquadio, L. Reina, D. Wackeroth., Wbb in the high pT HW region'''
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=== Detectors ===
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= Parton Densities =
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* '''DELPHES  S. Ovyn, X. Rouby'''
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* '''G. Hesketh et al., Experimental Definitions of Electron isolation (5p)'''
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== PDFs in Monte Carlos (Session 1) ==
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=== Jets ===
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* Exploring the LO* PDFs, are we ready to use them for production?
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* '''J. Butterworth, M. Schwarz, Jet substructure review (5p)'''
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* '''K. Hamilton et al., MC issues for jet substructure (5p)'''
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* '''P. Loch, P. Francavilla, Detector issues for jet substructure (5p)'''
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* '''M. Campanelli, J. Monk, J. Robinson, C. Taylor, A study of radiation between jets at the LHC '''
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* M. Campanelli, P.Francavilla, P.Loch, J. Andersen et. al., A SIMPLE RADIATION PATTERN IN HARD MULTI-JET EVENTS IN ASSOCIATION WITH A WEAK BOSON --> to NLO ML group
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* Uncertainty Bands for the LO* PDFs
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=== Beyond the Standard Model ===
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* PDFs and their interaction with MC tuning
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* '''A. Djouadi, J. Kalinowski, M. Muehlleitner and M. Spira AN UPDATE OF THE PROGRAM HDECAY'''
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== Beyond LO(Session 1 & 2) ==
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* '''L. Basso, F. Braam, C. Duhr, B. Fuks, A. Martin, J. Reuter, T. Roy, S. Schumann IMPLEMENTATION AND VALIDATION OF MODELS BEYOND THE STANDARD MODEL WITH FEYNRULES'''
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* Are PDFs ready for NLO/Multuleg WG? (Session 1)
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Tools/MC Conveners:
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'''TH:''' F. Maltoni (Louvain, Belgium),  P. Richardson (IPPP, Durham, UK), S. Schumann (Heidelberg, Germany), P. Skands  (Fermilab, USA).<br>
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* Electroweak and QCD in PDFs (Session 1)
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'''EXP:''' J. Butterworth (ATLAS - University College London, UK), F. Moortgat (CMS - ETH Zurich, Switzerland)
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* BSM effects in PDFs (Session 2)
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= Jets and Energy Flows =
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== Jet Substructure (Sessions 1 & 2) ==
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* Boosted hadronic decays of massive particles (W,Z,Top,H,BSM...)
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== QCD radiation patterns (Session 1) ==
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* rapidity gap definitions
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* colour flow and energy flow, coherence
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* QCD radiation patterns as a tool for reducing combinatorials in top, higgs, BSm searches...
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* Lessons from the new generation of parton showers
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== New Jet Algorithms (Sessions 1 & 2) ==
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== Jet Calibration ==
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* what truth do we calibrate to? (see last Les Houches for accord on final states)
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Current revision

The Tools/MC Group spans both Les Houches sessions. To minimize confusion, each session has been assigned its own wiki page;

Contents

Tentative Proceedings Table of Content (120p total)

We have assembled the combined document in this repository. If you would like direct access to this repository, please see the instructions on the link. If you prefer to work independently, that's fine, just use the templates properly and mail your contributions to the conveners.

Both Sessions

Wiki pages:
Tools and Monte Carlo Session 1 (SM)
Tools and Monte Carlo Session 2 (BSM)


Proceedings: Contributions where we have a draft already in the repository are in bold face.


Interfaces

  • L. Lonnblad. LHEF v2. (12p)
  • J. Huston, F.-P. Schilling, P. Uwer. J.Weng NLO ROOT tuples. --> to NLO ML group.
  • S. Plaetzer. Merging Interface. (5p)
  • F. Mahmoudi et al STATUS OF THE FLAVOUR LES HOUCHES ACCORD

Tuning

  • Rivet/Professor status and important data sets for tuning A. Buckley et al., (5p)
  • Towards uncertainty bands on MC tunes A. Buckley et al., (5p)
  • Tuning in the presence of matching P. Lenzi et al., (5p)

Beyond Fixed Order

  • R. Chierici, E. Maina. MPI in top (5p)
  • S. Weinzierl, Theory Tests. (3p)
  • D.Majumder, K. Mazumdar, T. Sjostrand A Matching scheme for Wgamma NLO ME generator and pythia parton shower
  • M. Grazzini et al Higgs boson production via gluon fusion at the LHC: A comparative study.
  • J. M. Butterworth, F. Cordero, G. Piaquadio, L. Reina, D. Wackeroth., Wbb in the high pT HW region

Detectors

  • DELPHES S. Ovyn, X. Rouby
  • G. Hesketh et al., Experimental Definitions of Electron isolation (5p)

Jets

  • J. Butterworth, M. Schwarz, Jet substructure review (5p)
  • K. Hamilton et al., MC issues for jet substructure (5p)
  • P. Loch, P. Francavilla, Detector issues for jet substructure (5p)
  • M. Campanelli, J. Monk, J. Robinson, C. Taylor, A study of radiation between jets at the LHC
  • M. Campanelli, P.Francavilla, P.Loch, J. Andersen et. al., A SIMPLE RADIATION PATTERN IN HARD MULTI-JET EVENTS IN ASSOCIATION WITH A WEAK BOSON --> to NLO ML group

Beyond the Standard Model

  • A. Djouadi, J. Kalinowski, M. Muehlleitner and M. Spira AN UPDATE OF THE PROGRAM HDECAY
  • L. Basso, F. Braam, C. Duhr, B. Fuks, A. Martin, J. Reuter, T. Roy, S. Schumann IMPLEMENTATION AND VALIDATION OF MODELS BEYOND THE STANDARD MODEL WITH FEYNRULES

Tools/MC Conveners: TH: F. Maltoni (Louvain, Belgium), P. Richardson (IPPP, Durham, UK), S. Schumann (Heidelberg, Germany), P. Skands (Fermilab, USA).
EXP: J. Butterworth (ATLAS - University College London, UK), F. Moortgat (CMS - ETH Zurich, Switzerland)

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