oldtopics2015

Some of the topics from 2015 that can be carried over to 2017

Please ADD and EDIT (heavily)

SM and N(N)LO

NNLO: Attacking the 2015 Les Houches wish list

what has been learned so far from NNLO calculations
what common elements exist that will be useful for future calculations
how can programs be used by non-authors?

What's left at NLO?

Status of automated calculations
EWRC
- automatic inclusion of EW effects →test cases
- Features of the TeV scale and of the transition from 8 TeV to 13 TeV
  - Photon induced processes (like gamma gamma → WW)
  - W/Z emission
NLO PS → NNLO PS
exclusive jet cross sections→what does the data tell us?
scale choices: motivation/justifications for HT/2

PDFs

utility of/use of META PDFs

Fiducial cross sections

extrapolation uncertainties to full sigma

Photons

more on Les Houches tight isolation accord→theory with Frixione isolation = theory with NLO fragmentation with experimental fixed cone isolation (=data)

Jets & Quark/Gluon Discrimination

physics of jet R variation
jet sub-structure tools and how they can be part of everyday analyses (Overlaps with NLO/SM and Tools/MC a bit with Higgs (e.g. VBF tagging)
How to define quark/gluons at fixed order? (i.e. flavored jet algorithms)
Tests of quark/gluon taggers? (ATLAS/CMS/theory)
Why do current parton showers give such large discrepancies in quark/gluon tagging performances?
Data available to tune quark/gluon taggers? (RIVETized analyses?)
Key future measurements to be made? (at LHC or even in archival data?)
Quark/gluon enriched samples? (e.g. dijet vs. gamma/W/Z + jet)
Can NⁿLO/NⁿLL calculations improve our understanding?
Impact of soft QCD (underlying event) and pileup?

Interface SM/BSM

Presentation of LHC results

Intimately related to this is the issue of fiducial cross sections. This has both theory/modelling/MC aspect
Presentation of LHC results; reinterpretation studies; feedback from experimentalists; update of the Atom/CheckMate/MadAnalysis 5

Joint exercises between SM and BSM->how to find BSM (or not) given limits of SM precision

BSM Physics/ Including non Standard Higgs

Compressed spectra
Theories where non-color particles cancel the quadratic divergence:The Twin Higges et al. How to look for these?
BSM simulation at NLO in QCD
Standardizing cross section information in the SLHA format (finalizing what has been initiated in 2013)
Superboosted tops
Vector-like Quark/Top partner searches: recommendation for presentation of searches for weak single production
New Heavy gauge bosons: Prospects/priorities for run-II
Compositeness scenarios: possibile to present results in terms of a useful simplified parametrisation (like MSSM/pMSSM etc)?
Is the current status of boosted object reconstruction techniques sufficient for Run-II BSM searches? e.g. Is experimental b-tagging good enough in the boosted H/t kinematic regime?
Do we need new techniques for leptonic and semi-leptonically decaying boosted objects?
EFT approach to new physics and DM: Signals & limitation
Effective field theory approach to Higgs searches at the LHC. Simplified approach with fewer parameters that can be realistically implement by experiments.
Synergy of electroweak precision and Higgs data.
Triple gauge couplings at the LHC: how to make the analysis better and more model-independent.
Presentation of limits from heavy Higgs searches on multi-Higgs models.
Heavy higgs searches: which decay channels are not covered?
Higgs studies in the off-shell regime: EFT vs simplified models.
Complementarity between non-standard Higgs searches and precision Higgs measurements
MSSM low tab(beta) scenarios and Higgs decay modes to be expoited at Run II
Prospects for Heavy Higgs decays to charginos/neutralinos at Run II
Prospects for NMSSM Higgs Bosons with Run II
2HDM - benchmarks; 2HDM with Dark Matter
“Exotic” decays of h(125) - what is doable with Run II and how ?
probing h(125) CP (beyong h→ZZ: fermionic h decays, ttH, …)
Higgs and DM: h→invisible,…
Higgs studies in the off-shell regime: on-shell and off-shell interference effects, impact on heavy Higgs signal strength measurements
Renormalization group effects in the dim 6 EFT space, impact on searches for new physics?
status of HH searches: is there something left to do?
precision measurements (FCC-ee/ILC) vs heavy Higgs searches
…