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Some more slides about jets in CDF/ATLAS …some slides taken from a seminar by Ken Hatekayama J. Huston CTEQ meeting.

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Presentation on theme: "Some more slides about jets in CDF/ATLAS …some slides taken from a seminar by Ken Hatekayama J. Huston CTEQ meeting."— Presentation transcript:

1 Some more slides about jets in CDF/ATLAS …some slides taken from a seminar by Ken Hatekayama J. Huston CTEQ meeting

2 Inclusive jets PDF uncertainties in some rapidity regions larger than systematic uncertainties; potential for reducing pdf uncertainties in CTEQ7 Systematic errors can adjust most of the shape differences above …but statistical errors are tiny

3 Hadronization and UE corrections

4 Differences between Midpoint and SISCone

5

6 Inclusive jets with k T

7

8 Dijets

9 W/Z + jets

10 W + jets

11 Good agreement with NLO where available Note the data has been corrected back to the hadron level, i.e. no knowledge of the CDF detector is needed for any itinerant theorist to be able to compare this predictions to the data

12 Z + jets

13 Topoclusters in ATLAS calibrated blobs of energy in the calorimeter corresponding to one/few particles fine depth/lateral segmentation allows them to be calibrated back to hadron level treat as 4-vectors

14 SpartyJet At LHC, would like to use modern and varied jet algorithms  both ATLAS and CMS are moving to the SISCone algorithm SpartyJet developed to make analyses with multiple algorithms easier, especially with topoclusters in ATLAS  www.pa.msu.edu/~huston/Sparty Jet/SpartyJet.html

15 Recommendations of jet paper …available from SpartyJet webpage


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