Experimental results

From Wiki Les Houches 09

(Difference between revisions)
Jump to: navigation, search
(New page: == Boosted W /Z Experimental Results == Dumping ground for 'results'... == Leptonic Boosted W Reconstruction == == Hadronic W/Z Reconstruction == == Signature determination and analysi...)
Current revision (14:34, 25 June 2009) (view source)
 
(15 intermediate revisions not shown.)
Line 2: Line 2:
Dumping ground for 'results'...
Dumping ground for 'results'...
 +
 +
== Leptonic Boosted Z Efficiency ==
 +
''James''
 +
 +
Toy MC result for Z to ee (tuned to fit CMS fullsim):
 +
 +
[[Image:ZEfficiency.png|500px]]
== Leptonic Boosted W Reconstruction ==
== Leptonic Boosted W Reconstruction ==
 +
''James''
 +
 +
Define neutrino momentum 3-vector as:
 +
 +
[[Image:ColinAprox.png|300px]]
 +
 +
Reconstructed W mass from 1 TeV u* (PGS):
 +
 +
[[Image:WMassustar.png|500px]]
 +
 +
Signal reconstructed P_t (LHC full-sim):
 +
 +
[[Image:BoostedWRecoPt.png|500px]]
 +
 +
Good discriminant is to plot against angular separation in phi between MET and lepton (PGS is on the left, LHC full-sim on the right):
 +
 +
[[Image:BoostedWDiscriminant.png|500px]][[Image:QStarFullSim.png|500px]]
 +
 +
Various backgrounds:
 +
 +
[[Image:Boostedtt.png|500px]][[Image:TTBarFullsim.png|500px]]
 +
 +
[[Image:Boostedwjets.png|500px]][[Image:WJetsFullsim.png|500px]]
 +
 +
[[Image:boostedzjets.png|500px]][[Image:ZeeFullsim.png|500px]]
 +
 +
'''Efficiency Measurements'''
 +
 +
Define cut as dPhi(MET, Ele) < (Pt(Pair) / 80)
 +
 +
''Channel'': Cut efficiency (Total event efficiency)<br>
 +
''1 TeV u*'': 0.94 (0.77)<br>
 +
''TT+Jets'': 0.52 (0.08)<br>
 +
''Z+Jets'': 0.50 (0.50)<br>
 +
''W+Jets'': 0.50 (0.50)<br>
== Hadronic W/Z Reconstruction ==
== Hadronic W/Z Reconstruction ==
 +
''Heather and Muge''
 +
 +
Hadronic W/Z from Heather [[http://www.lpthe.jussieu.fr/LesHouches09Wiki/images/1/11/Hgray_hadvecbos.pdf]]
 +
 +
Note: See also [http://www-pnp.physics.ox.ac.uk/~karagozm/workshops/leshouches09/muge_boosted.ppt here] for some results from Muge.
== Signature determination and analysis approach ==
== Signature determination and analysis approach ==

Current revision

Contents

Boosted W /Z Experimental Results

Dumping ground for 'results'...

Leptonic Boosted Z Efficiency

James

Toy MC result for Z to ee (tuned to fit CMS fullsim):

Leptonic Boosted W Reconstruction

James

Define neutrino momentum 3-vector as:

Reconstructed W mass from 1 TeV u* (PGS):

Signal reconstructed P_t (LHC full-sim):

Good discriminant is to plot against angular separation in phi between MET and lepton (PGS is on the left, LHC full-sim on the right):

Various backgrounds:

Efficiency Measurements

Define cut as dPhi(MET, Ele) < (Pt(Pair) / 80)

Channel: Cut efficiency (Total event efficiency)
1 TeV u*: 0.94 (0.77)
TT+Jets: 0.52 (0.08)
Z+Jets: 0.50 (0.50)
W+Jets: 0.50 (0.50)

Hadronic W/Z Reconstruction

Heather and Muge

Hadronic W/Z from Heather [[1]]

Note: See also here for some results from Muge.

Signature determination and analysis approach

Personal tools