Observables
From Wiki Les Houches 09
(Difference between revisions)
Line 26: | Line 26: | ||
* Radja | * Radja | ||
* Reinhard | * Reinhard | ||
+ | |||
+ | ---- | ||
+ | |||
+ | |||
+ | == Contributions from several discussions so far == | ||
+ | |||
+ | * Normalization of tT cross section, using Z and/or Z*, or Z at high pT (in order to enhance gluon contribution and thus reduce anti-correlation | ||
+ | with the gg-PDF needed for the tT production) | ||
+ | * cf. the discussion about Higgs systematics | ||
+ | ** Rohini, Bruce, Michael Dittmar, Guenther, Joey | ||
+ | |||
+ | * Same as above, but normalization of Di-boson production | ||
+ | ** Bruce | ||
+ | |||
+ | * Action item for these normalization studies: get numbers on exp. and theo. uncertainties | ||
+ | for the Z (large pt) counting for a given int. lumi. | ||
+ | |||
+ | ---- | ||
+ | |||
+ | * detailed study of di-lepton (DY) Production, all relevant systematics | ||
+ | ** Samir | ||
+ | |||
+ | ---- | ||
+ | |||
+ | * discussions on ratios of cross sections in W/Z+jet production | ||
+ | ** example : sigma(W+>=3jets)/sigma(W+>=2jets), look at 3rd jet production as function of rap diff. of leading 2 jets | ||
+ | ** Z+jet : analysis of hadronic part of event, such as event shapes | ||
+ | ** Jeppe,Vitaliano, Piergiulio, Alessandro | ||
+ | |||
+ | ---- | ||
+ | |||
+ | * discussion of relevant observables in QCD incl. jet production | ||
+ | ** incl. cross section, ratio of di-jet production in diff. rap. bins | ||
+ | ** Paolo | ||
+ | |||
+ | ---- | ||
+ | |||
+ | * discussion on observables involving photons | ||
+ | ** W+gamma, gamma-gamma final states | ||
+ | ** important issue: definition of isolation | ||
+ | ** Kajari, Susan | ||
+ | |||
+ | ---- | ||
+ | |||
+ | * establishment of Root Ntuples for easy use by experimentalists, | ||
+ | containing all necessary info from LO/NLO codes output | ||
+ | ** Joey, Joanna,Frank-Peter |
Revision as of 13:23, 12 June 2009
Identifying/analyzing observables, ratios of observables, systematic uncertainties (renorm.scale, PDFs), obtaining cross sections from public codes/ntuples. The observables might involve both jets and leptons. Identify for which process/observable NLO calculations are available. What is suitable for start-up (eg. normalization issues, Drell-Yan, top, ...)
People signed up for this group:
- Bruce
- Rohini
- Gudrun
- Vitaliano
- Tanju
- Peter
- Frank-Peter
- Laura
- Giacinto
- Jon
- Matthew
- Matteo
- Nikolas
- Alessandro
- Joanna
- Lorenzo
- Jeppe
- Paolo
- Radja
- Reinhard
Contributions from several discussions so far
- Normalization of tT cross section, using Z and/or Z*, or Z at high pT (in order to enhance gluon contribution and thus reduce anti-correlation
with the gg-PDF needed for the tT production)
- cf. the discussion about Higgs systematics
- Rohini, Bruce, Michael Dittmar, Guenther, Joey
- Same as above, but normalization of Di-boson production
- Bruce
- Action item for these normalization studies: get numbers on exp. and theo. uncertainties
for the Z (large pt) counting for a given int. lumi.
- detailed study of di-lepton (DY) Production, all relevant systematics
- Samir
- discussions on ratios of cross sections in W/Z+jet production
- example : sigma(W+>=3jets)/sigma(W+>=2jets), look at 3rd jet production as function of rap diff. of leading 2 jets
- Z+jet : analysis of hadronic part of event, such as event shapes
- Jeppe,Vitaliano, Piergiulio, Alessandro
- discussion of relevant observables in QCD incl. jet production
- incl. cross section, ratio of di-jet production in diff. rap. bins
- Paolo
- discussion on observables involving photons
- W+gamma, gamma-gamma final states
- important issue: definition of isolation
- Kajari, Susan
- establishment of Root Ntuples for easy use by experimentalists,
containing all necessary info from LO/NLO codes output
- Joey, Joanna,Frank-Peter