Difference between revisions of "HSG2"

Latest revision as of 09:32, 4 April 2012

This page is intended to keep track of the Nikhef contributors to the Higgs Subgroup 2 (HSG2).

To make Frank sleep better our twiki is located in our area at CERN CERN HSG2 Nikhef twiki

@@ Line 1: / Line 1: @@
-This page is intended to keep track of the Nikhef contributors to the Higgs Subgroup 2 (HSG2) at CERN:
+This page is intended to keep track of the Nikhef contributors to the Higgs Subgroup 2 (HSG2).
-Usefull things as AMA tags and or samples used will be listed here for future reference.
+To make Frank sleep better our twiki is located in our area at CERN [https://twiki.cern.ch/twiki/bin/viewauth/Atlas/NikhefHZZ CERN HSG2 Nikhef twiki]
-Links to relevant twiki websites:
- https://twiki.cern.ch/twiki/bin/view/AtlasProtected/HiggsZZstar
- https://twiki.cern.ch/twiki/bin/view/AtlasProtected/H4lBaselineAnalysis
-{| border="1"  cellpadding="2" cellspacing="0"
-|-
-! style="background:#ffba00;" | Presentations
-|}
-{| border="1"  cellpadding="2" cellspacing="0"
-|-
-| style ="background:#3399ff;" | Name
-| style ="background:#3399ff;" | Year
-| style ="background:#3399ff;" | Title
-| style ="background:#3399ff;" | Thesis
-|-
-| H ZZ qqll (low mass)
-| Gwilliams
-| c
-| [http://www.nikhef.nl/~ivov/hsg2/GwilliamHllqqLowMass.pdf (pdf)]
-|}
-{| border="1"  cellpadding="2" cellspacing="0"
-|-
-! style="background:#ffba00;" | Old stuff
-|}
-November 2009 it was decided that the SM EW group and the HSG2 should apply the following
-Common Selections for their analyses:
-(http://indico.cern.ch/getFile.py/access?contribId=0&resId=0&materialId=slides&confId=65225)
-/////////////////////////////////////////////////////////////
-COMMON SELECTION
-/////////////////////////////////////////////////////////////
-. Preselection:
-   - Loose electrons (Author = 1 || 3), pT>5 GeV, |eta|<2.47
-   - Staco Muons:
-      Combined+LowPt with pT>5 GeV, |eta|<2.5
-      and Standalone with pT>5 GeV for 2.5<|eta|<2.7
-. Kinematics:
-   - Electrons: two Loose electrons with pT>20 GeV, others Medium
-   - at least 4 leptons with pT>5 GeV
-. Lepton pairing:
-   - at least 2 (l+,l-) pairs (same flavor, opposite sign)
-   Loop over all 4l-combinations:
-.) DeltaR_ll > 0.1 between each two leptons
-.) Loose isolation: [Sum ET(DR=0.3)]/pT<0.5
-.) Loose Z-mass cuts:
-      - m12=(70 to 110)GeV\
-      - m34>20 GeV for ZZ*, m34=(70 to 110)GeV for ZZ
-//////////////////////////////////////////////////////////////
-ADDITIONAL HSG2 SPECIFIC CUTS TO BE APPLIED ON TOP OF THAT
-//////////////////////////////////////////////////////////////
-.) Tighter pT-cut on leptons, each lepton pT>7 GeV
-   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-   Up to here, all 4l-combinations are looped over.
-   After this, the best 4l-combination can be selected.
-   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-.) Select the best 4l-combination:
-   m12=min(m_l1l2, mZ); m34=max(m_l3l4)
-.) Tighter Z-cuts
-   Depending on mH, same cuts as for CSC note.
-.) Tighter lepton isolation
-   - [Sum ET(DR=0.3)]/pT<0.33 for muons,
-     [Sum ET(DR=0.3)]/pT<0.44 for electrons
-.) No track isolation for the moment.
-.) No IP cut for the moment.
-.) Mass window cut, same as for CSC.
-The H4l baseline analysis twiki mentions the relevant samples to be:
- sample name        Dataset number
-  H->4l                 105300
-  ZZ->4l                109292
-  ttbar->4l             109341
-  bb(z->ee)+0p          109400
-           +1p          109401
-  bb(z->mm)+0p          109405
-           +1p          109406
-  Z->ee (inclusive)     106050
-  Z->mumu (inclusive)   106051
-To search for AODs of these samples on the Grid, do for example:
- dq2-ls "mc*105300*AOD*"
-To narrow it down a bit only look for 'merge' and containers '/':
- dq2-ls "mc*105300*merge*AOD*/"

Difference between revisions of "HSG2"

Latest revision as of 09:32, 4 April 2012

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