Les Houches
2023 Session
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- Use of wiki pages and slack. Wifi access/set-up.
- Important info about bus, lodging, facilities.
- Bulletins.
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2013:groups:tools:start
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Table of Contents
Tools and Monte Carlos
A list of topics common for sessions 1 and 2
- Data vs Theory (Tools and MC)
- Making use of Rivet → have Rivet tutorial early in workshop (see here)
- Dressed leptons: what is the best way of making comparisons between data and theory
- More sophisticated looks at analyses with background subtractions
- Try to constrain jet content of UE
- Update of LHE file format; more information also here
A list of topics for session 1
- Schemes to systematically evaluate uncertainties in the new NLO tools
- which scales to vary: standard renormalisation and factorisation scales in matrix elements
- matching configurations and freedoms, e.g. detailed matching scheme choices in POWHEG+Py8/H++ (and alpha_s (in)consistency) [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)
- testcase: Higgs boson production in gluon fusion
- inclusive quantities: Higgs pt, y distributions, Njets etc. & uncertainties
- testing the high-pt regime
- testing the two jet regime with weak boson fusion cuts
- Inclusion of ew corrections for TeV-scale processes
- understanding the requirements for a systematic implementation
- Rivet comparison of QED correction implementations in Z→ll: ATLAS phi* analysis and isolated photon
- Comparison of recent NLO matching/merging tools
- review tools & techniques
- highlight issues through example processes
- 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
- 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 page for details
A list of topics for session 2
- 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)
- SMS decomposition: Libraries with simplified models, the associated analyses, LHC results as well as their reinterpretation
- Tutorials on ROOSTATS and ROOFIT
- Compressed models: matching and cie
- (fast) Detector simulation for long-lived particles
- Recipes for pp → SUSY inclusive+hard radiation with matrix element generators (how to prevent double counting, etc.)
2013/groups/tools/start.1370613243.txt.gz · Last modified: 2013/06/07 15:54 by andy.buckley
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