Difference: AtlasWW (3 vs. 4)

Revision 42005-10-13 - SarahAllwood

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META TOPICPARENT	name="JonButterworth"

WW scattering in ATLAS.

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The smearing will be done on cells, though I don't know what value to use for the constant term, since we want it to be comparable to smearing on jets.

Changed:

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Underlying event model: should we use the same parameters as in the Rome samples? Or our own? We were using:

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Underlying event model: should we use the same parameters as in the Rome samples? Or our own?

We were using:

Rome used:

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Selection cuts

Action: Sarah to document what she actually does in the full sim analysis

Changed:

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The code is in ... . It started from the AnalysisExamples package, and I haven't changed much about the particle preselections from that.

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The code is in ... . It started from the AnalysisExamples package.

electron

The standard preselections available in atlas are here

. For electrons, I currently use:

Changed:

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ET>10GeV,

isolation cut of 5GeV in dR=0.3

isEM() & 0x07FF == 0

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ET>10GeV,
isolation cut of 5GeV in dR=0.3
isEM() & 0x07FF == 0

muon

Added:

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To be selected, a muon must be highPt and have

Added:

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chisquared < 20.0,
Muon Isolation cut of 5GeV.
pT > 5GeV
eta < 2.7

missing ET

The missing ET used is MET_Final, which is calib+muons+cryostat correction.

Added:

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Hadronic W mass resolution

In full simulation I just use the highest pT jet.

Deleted:

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Hadronic W mass resolution

pile up, jet finder dependence.

subjet cuts

cal granularity?

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