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2013:groups:tools:start [2013/06/07 09:41] andy.buckley [A list of topics for session 1] |
2013:groups:tools:start [2013/06/20 15:18] (current) benjamin.fuks [A list of topics for session 2] |
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* More sophisticated looks at analyses with background subtractions | * More sophisticated looks at analyses with background subtractions | ||
* Try to constrain jet content of UE | * Try to constrain jet content of UE | ||
- | * **[[2013:groups:tools:LHEF|Update of LHE file format]]**; more information also **[[2013:groups:tools_lheextension| here]]** | + | * ** Update of the LHE file format** The LHE file format has been around since 2006 and at the workshop 2009 there was a proposal for an updated version 2 of the format. Before this meeting additional suggestens were mad, mainly related to the handling of weights [[2013:groups:tools:LHEF|here]] and [[2013:groups:tools_lheextension| here]]. After discussion there is now the following [[2013:groups:tools:LHEF3|suggested LHEF update]]. |
* [[2013:groups:tools:HepMC|Proposed updates of HepMC event record]] | * [[2013:groups:tools:HepMC|Proposed updates of HepMC event record]] | ||
* [[2013:groups:tools:HEPDATA|HEPDATA wishlist]] | * [[2013:groups:tools:HEPDATA|HEPDATA wishlist]] | ||
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* **Schemes to systematically evaluate uncertainties in the new NLO tools** | * **Schemes to systematically evaluate uncertainties in the new NLO tools** | ||
- | * which scales to vary: standard renormalisation and factorisation scales in matrix elements | + | * [[2013:groups:tools:matching|NLO matching schemes and uncertainties]] |
- | * freedoms in matching, e.g. detailed matching scheme choices in POWHEG+Py8/H++ (and alpha_s (in)consistency) [{{2013:groups:tools:powheg-matching-schemes.pdf|Slides on POWHEG+Pythia8}}] | + | |
- | * also in showers? if so, how? | + | |
- | * starting scales of shower? how about contact to resummation calculations? | + | |
- | * systematic variation of underlying event simulation: eigentunes? other ideas? | + | |
- | * PDF uncertainties: how to do them properly in the shower? is this important? | + | |
* **Comparison of NLO tools (continuation/extension of HiggsWG activity)** | * **Comparison of NLO tools (continuation/extension of HiggsWG activity)** | ||
* testcase: Higgs boson production in gluon fusion | * testcase: Higgs boson production in gluon fusion | ||
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* testing the high-pt regime | * testing the high-pt regime | ||
* testing the two jet regime with weak boson fusion cuts | * testing the two jet regime with weak boson fusion cuts | ||
+ | * **[[2013:groups:sm:higgs:hdijets|Higgs+dijets (ggF) uncertainty study]]** | ||
* **Inclusion of ew corrections for TeV-scale processes** | * **Inclusion of ew corrections for TeV-scale processes** | ||
+ | * Write a brief summary of guidance for best practice | ||
* understanding the requirements for a systematic implementation | * understanding the requirements for a systematic implementation | ||
* Rivet comparison of QED correction implementations in Z->ll: ATLAS phi* analysis and isolated photon | * Rivet comparison of QED correction implementations in Z->ll: ATLAS phi* analysis and isolated photon | ||
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* aim for short write-up for non-experts on matching / merging, focusing on NLO merging, ending with roadmap for where further improvement is desired / necessary / not necessary. | * aim for short write-up for non-experts on matching / merging, focusing on NLO merging, ending with roadmap for where further improvement is desired / necessary / not necessary. | ||
* **Jet substructure in the presence of high pile-up** | * **Jet substructure in the presence of high pile-up** | ||
- | * study of several jet substructure techniques applicable for the mitigation of pile-up effects on (boosted) signal and backgrounds at particle level | ||
- | * aim is a first to evaluate jet trimming, filtering, and/or pruning configurations for pile-up conditions expected for LHC 2015 and beyond | ||
- | * also start to understand the validity/usefulness of substructure reconstruction for jet reconstruction performance enhancements | ||
* see dedicated **[[2013:groups:tools:substructure| page]]** for details | * see dedicated **[[2013:groups:tools:substructure| page]]** for details | ||
+ | |||
==== A list of topics for session 2 ==== | ==== A list of topics for session 2 ==== | ||
* Proposal for a new event file format (to get rid of the huge stdhep and hepmc files) | * Proposal for a new event file format (to get rid of the huge stdhep and hepmc files) | ||
* Extending the SLHA to include cross section information (automate event-by-event weighting with higher order cross sections) | * Extending the SLHA to include cross section information (automate event-by-event weighting with higher order cross sections) | ||
- | * SMS decomposition: Libraries with simplified models, the associated analyses, LHC results as well as their reinterpretation | + | * DLHA (Dark Matter Les Houches Accord) |
+ | * SMS decomposition: Libraries with simplified models, the associated analyses, LHC results as well as their reinterpretation .... see also [[2013:groups:np:start|BSM group]] | ||
* Tutorials on ROOSTATS and ROOFIT | * Tutorials on ROOSTATS and ROOFIT | ||
* Compressed models: matching and cie | * Compressed models: matching and cie | ||
* (fast) Detector simulation for long-lived particles | * (fast) Detector simulation for long-lived particles | ||
* Recipes for pp -> SUSY inclusive+hard radiation with matrix element generators (how to prevent double counting, etc.) | * Recipes for pp -> SUSY inclusive+hard radiation with matrix element generators (how to prevent double counting, etc.) | ||
+ | |||
+ | Following the kick-off meeting on Thurs 13th we agreed the following list of activities | ||
+ | * analysis and reinterpretation | ||
+ | * **[[2013:groups:tools:slha|Extending the SLHA ]]** (cross sections) | ||
+ | * **[[2013:groups:tools:DLHA|DLHA]]** | ||
+ | * **[[2013:groups:tools:EventFormats|event formats]]** | ||
+ | * Low energy and flavour observables | ||
+ | * discussion on SM backgrounds and MC validation | ||
+ | |||
+ | Other suggestions did not seem to have enough critical mass. | ||
+ | We are happy to schedule additional tutorials if enough people using the programs want them, otherwise users and the authors can discuss in private. |