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MC and Tools
- (from ER,SP,VC) -
pt_Z at medium-large pt: few percent precision might require assessing impact of NP corrections; MC study ?
subleading-log effects in parton showering: find the best variables to test them, and motivate an experimental analysis?
NNLO+PS: how well do these tools work in regions where logs are large?
Matching/merging uncertainties in jet substructure analysis: impact on jet-substructure tool performance
Resonance-aware matching schemes: a comparison could be instructive at this point, possibly in the context of m_top measurements. [can use this study to finally promote the use of the (already existing) LHE-to-PS modern interface capable for example to handle multiple veto-scales]
A guideline for assessing uncertainties in NLO+PS matching: is this realistic? Can we find a balance between being fully conservative and its opposite?
EW showers vs. EW corrections at fixed-order: a dedicated comparison?
g → bbar , g→ ccbar
followup on Higgs+jets study from LH2015
new study with inclusive jets
do parton showers have an impact on inclusive jet cross sections?
if all PS do not have a similar behavior, then why
do we understand in detail variations between various parton showers starting with as similar parameters as possible
can we benchmark “true” uncertainties
comparison of jet shapes at NLO/NNLO, PS and ME+PS
what is the role of UE when jet area subtraction is universally used
NNLO (from GH)
to which extent is automation possible?
availabitity to non-authors
methods for IR subtractions, e.g. pro's and con's of N-Jettiness
NNLO+PS (see above)
NNLO (additions from JH)
scale choices at NLO and NNLO
how “universal” (/“good”) is HT/2
scale choices for complex final states
comparison of power corrections for H+jet to W/Z+jet
NLO EW corrections (from SK)
combination with (N)NLO QCD results (additive, multiplicative)
inclusion of corrections beyond NLO (multiphoton emission, NLL Sudakov approximation of leading NNLO EW effects)
treatment of resolved real-radiation photons (fully inclusive, vetoes)
mixed QCD-EW corrections
how to make use of NNLO results
PDFs (additions from JH)
inclusion of scale uncertainties
scale choice for inclusive jets (pTjet vs pTjetmax)
impact of new processes at NNLO (tT, photon+jet, dijet,W/Z+jet)
dealing with disagreements between observables/experiments
isolation for photons at NNLO
ME+PS (from KT)
NLO+PS can (yet) fully replace the usage of LO+PS in physics analyses ? [practical issues to be discussed]
Dealing with the large fraction of negative weights
LO+PS reweighed to NLO+PS, how to (not) do this for specific candles (Z/γ, W)
scale variations/choices and their interpretation as uncertainties
VBF (V)V+2j with (N)LO+PS, QCD-EW interference and ME+PS matching, VBF signal definition
photon+jets and matching with QED/QCD showers, QCD/EW corrections
Modelling of W and Z/γ at high, medium and low PT (from KT)
LO+PS, NLO+PS, EW corrections on NLO+PS, NNLO+NNLL+PS, NLO QCD+EW + PS
low/medium PT what combination(s) to use for precision measurements and uncertainty envelopes
high PT and QCD+EW corrections
QCD/QED shower corrections + uncertainties at low/medium/high
Jet Physics (core dump from Jesse)
Closing the loop on quark/quark tagging
From the LH 2015 parton shower comparison study…
…to a concrete plan of action for LHC jet shape measurements
Improved PDF constraints from quark/gluon tagging
“Deep learning” meets “deep thinking”
Interface of machine learning and analytic calculations
Physics-inspired network design
Jet substructure for tagging
Interplay of jet radius, jet grooming, and jet discriminants
Tagging longitudinal versus transverse W/Z bosons
Impact of soft QCD (underlying event) and pileup
Groomed jets for precision physics
Top mass determination
alpha_s extraction from substructure
Jets and heavy flavor
Color flow/dead cone in top quarks
Jet substructure of b/c-tagged jets, gluon splitting to heavy flavor
Charmonium polarization in identified jets
Heavy ion physics
Jet shapes in medium
Probe quark/gluon plasma with boosted objects
“The Lifetime Frontier at the LHC”: Common language/signature space for displaced vertices.
“Beyond Missing Energy”: Do we have full coverage (if such a thing can be well-defined ) of BSM signatures which do not involve MET? E.g. R-parity violating SUSY, …
“Multiple unknowns”: most searches hunt for one new particle (+ MET in SUSY). How difficult is it to expand to multiple unknown particles? Does this add a lot of phase space coverage?
' Beyond ATLAS and CMS': BSM at LHCb (and even ALICE). What more can be done with LHCb? Can we find BSM in forward/diffractive physics at all?
Colliders and multi-component dark matter
Of course, new ideas or new features from old ideas are always welcome!