Observables
From Wiki Les Houches 09
(Difference between revisions)
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== Contributions from several discussions so far == | == 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 | + | * '''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) | with the gg-PDF needed for the tT production) | ||
* cf. the discussion about Higgs systematics | * cf. the discussion about Higgs systematics | ||
- | ** Rohini, Bruce, Michael Dittmar, Guenther, Joey | + | ** ''Rohini, Bruce, Michael Dittmar, Guenther, Joey'' |
- | * Same as above, but normalization of Di-boson production | + | * Same as above, but '''normalization of Di-boson production''' |
- | ** Bruce | + | ** ''Bruce'' |
- | * Action item for these normalization studies: get numbers on exp. and theo. uncertainties | + | * '''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 | + | * detailed study of '''di-lepton (DY) Production, all relevant systematics''' |
- | ** Samir | + | ** ''Samir'' |
---- | ---- | ||
- | * discussions on | + | * discussions on r'''atios 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 | ** 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 | ** Z+jet : analysis of hadronic part of event, such as event shapes | ||
- | ** Jeppe,Vitaliano, Piergiulio, Alessandro | + | ** ''Jeppe,Vitaliano, Piergiulio, Alessandro'' |
---- | ---- | ||
- | * discussion of relevant observables in QCD incl. jet production | + | * discussion of '''relevant observables in QCD incl. jet production''' |
** incl. cross section, ratio of di-jet production in diff. rap. bins | ** incl. cross section, ratio of di-jet production in diff. rap. bins | ||
- | ** Paolo | + | ** ''Paolo'' |
---- | ---- | ||
- | * discussion on observables involving photons | + | * discussion on '''observables involving photons''' |
** W+gamma, gamma-gamma final states | ** W+gamma, gamma-gamma final states | ||
** important issue: definition of isolation | ** important issue: definition of isolation | ||
- | ** Kajari, Susan | + | ** ''Kajari, Susan'' |
---- | ---- | ||
- | * establishment of Root Ntuples for easy use by experimentalists, | + | * establishment of '''Root Ntuples''' for easy use by experimentalists, containing all necessary info from LO/NLO codes output |
- | + | **'' Joey, Joanna,Frank-Peter'' | |
- | ** Joey, Joanna,Frank-Peter | + |
Revision as of 13:25, 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