Tools
and Monte-Carlo for the SM and BSM Working Group Session
I &
II: 30 May-17 June 2011
Session I : Standard Model
(30 May to 8 June)
Session II: BSM (8 June to 17 June)
This working group will liaise
with the SM and
New Physics WGs
with the task of incorporating some of the issues and new techniques
developed in these groups in view of improving Monte Carlos and setting
standards and accords
among the simulation codes to better meet the experimental needs.
Issues concerning pdf and jets will also be covered
within this WG. In session I the emphasis will be on standard model
issues in
close connection with the SM/NLO Working Group while in sessions II the
emphasis will be on the implementation of new models.
TH Conveners:
F. Krauss (IPPP, Durham, UK), F. Maltoni, (Louvain,
Belgium),
P. Richardson (IPPP, Durham, UK) and P. Skands
(CERN, CH)
Exp Conveners:
SM E. Nurse, (UC
London, UK), New
Physics F. Moortgat (ETH Zurich, CH)
Some topics (many of these are strongly correlated with the studies in the SM and BSM WG)
more SM
- Tuning and Validation
- Models for UE and MI : tuning
- UE/MI tuning in the presence of matching
- Inclusion of the LHC data (including jets)
- Background estimation from data : new techniques, event samples, extrapolations...
- Tools for advanced (multivariate) analyses and TH/EXP comparisons
- Matrix Element Reiweighting method
- Data correction and unfolding
- TH/EXP comparisons : how to? (particle level, with QED FSR, EW corrections..)
- Automation of NLOwPS
- Status and directions
- New accords?
- Tools availabibility
- Loop benchmark point library
- Systematic uncertainties in ME+PS and NLOwPS
- Matching Benchmarks
- Common recommendations to evaluate uncertainties
- Parton Densities
- PDFs in NLOwPS
- Heavy quark PDF's
More BSM
- Purely technical: how to go from Lagrangian to hadron-level
events. Places to extend, improve or consolidate frameworks/interfaces?
- Tools for dark matter. From model to constraints to LHC signatures.
- Generic experimental acceptance calculators: DELPHES,
PGS, ... , for comparison with generic cross section x branching
fraction limits.
- NLO for BSM processes: status of tools? Cases where NLO is mandated.
- Multi-jet matched samples for BSM backgrounds. When is ME+PS neededfor BSM signals?
- how MC models of soft-QCD (UE, diffraction, MB) really
affect the high pT physics programme (in various SM and BSM
analyses).
- Boosted resonance decays vs Jet substructure. How
well is QCD really known for this? Is matching to fixed-order (hard)
matrix elementsenouhh? Do we risk hitting uncontrolled subleading logs?
- Radiation in processes with new kinds of colour structures, e.g.,
- sextets / colour epsilon tensors.
- Radiation in new non-QCD sectors, like hidden
valleys. Hadron spectra in new confining models. Quirks, technicolor /
holographic models, ...
- Processes where the narrow-width approximation breaks down,
possibly in combination with large interference effects between signal
and backgrounds. (Wide resonances.)
- Description of decay chains interspersed with radiation off
multipleintermediate massive states. Especially when the states are
quite wide.
- Spin correlations and model discrimination
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