Summary
-------

* 6 channels:
  - ZZ -> 4l, llvv, llqq, vvqq
  - WW -> lvlv, lvqq 

* Approximate VBF cuts:
  - 2 non-b-tagged jets in opposite directions (eta1*eta2 < 0)
  - Pick highest mjj pair
  - m(jj,tag) > 500 GeV; dEta(jj,tag) > 4
  - Some channels also have a central jet veto within the rapidity gap

* Cuts on V boson
  - lvlv: MET > 25 (45) GeV for diff- (same-) flavour chamnel
  - llvv: MET > 70 GeV
  - lvqq, llqq, vvqq: pt(fat jet) = pt(Z) > 200 GeV for boosted regieme
  - lvqq, llqq: pt(V->lep)/m(VV) > 0.4 and, for boosted, pt(fat jet = V->had)/m(VV) > 0.4
  - vvqq: MET>160 GeV and MET/mT > 0.45 where mT is transverse mass

* WW has b-jet veto while ZZ doesn't
  - For ZZ we may even categorise in untagged/tagged for signal jets

* More details of cuts (including pt and eta requirements of objects) below in case they are needed

H->WW->lvlv
-----------

* Two oppposite charge leptons 
  - pt(lead) > 45 GeV; pt(sublead) > 20 GeV
  - |eta| < 2.5
  - m(ll) > 50 GeV and not consistent with mZ if same-flavour

* MET > 25 (45) GeV for diff- (same-) flavour chamnel

* At least two jets 
  - pt > 25 GeV for |eta| < 2.5 and pt > 30 GeV for 2.5 < |eta| < 4.5

* b-jet veto

* VBF Selection
  - m(jj,tag) > 500 GeV; dEta(jj,tag) > 4
  - Central jet veto within dEta 
  - Leptons between jets

H->WW->lvqq
-----------

* 1 lepton 
  - pt > 25 GeV; |eta| < 2.5

* At least 4 dR=0.4 jets or at least 2 dR=0.4 jets (j) and 1 dR=1.0 fatjet (J)
  - pt(dR=0.4) > 30 GeV and pt(lead, dR=0.4) > 60 GeV; |eta| < 4.5 
  - pt(dR=1.0) > 200 GeV; |eta| < 2.0
  - If fat jet, that is the signal jet

* MET > 60 GeV

* b-jet veto

* W selection
  - 65 < m(jj or J,sig) < 96 GeV  
  - *** How decide ***

* VBF Selection
  - m(jj,tag) > 600 GeV; dEta(jj,tag) > 3

* Optimised selection:
  - pt(V->lep)/m(VV) > 0.4 and, for boosted, pt(J)/m(VV) > 0.4

H -> ZZ -> 4l
-------------

* 4 leptons
  - pt > 20,15,10,7(6) GeV for e (mu); |eta| < 2.5 (2.7) for e (mu) 

* At least 2 jets
  - pt > 25 GeV for |eta| < 2.5 and pt > 30 GeV for 2.5 < |eta| < 4.5

* VBF selection
  - m(jj,tag) > 130 GeV (to be optimised)

H -> ZZ -> llvv
---------------

* 2 Leptons
  - pt > 20 GeV; |eta| < 2.5
  - consitent with mZ

* MET > 70 GeV

* b-jet veto
  - No b-jets with pt > 20 GeV and |eta| < 2.5

* At least 2 jets
  - pt > 30 GeV; |eta| < 4.5

* VBF selection
  - m(jj,tag) > 550 GeV; dEta(jj,tag) > 4.4

H -> ZZ -> llqq
---------------

* 2 OS, SF leptons
  - pt(lead) > 25 GeV and pt(sublead) > 7 GeV; |eta| < 2.5 (2.7) for e (mu)
  - consistent with mZ

* MET/sqrt(H_T) < 3.5 
  - where H_T is the scalar sum of the transverse momenta of the leptons and jets

* At least 4 dR=0.4 jets or at least 2 dR=0.4 jets (j) and 1 dR=1.0 fatjet (J)
  - pt(dR=0.4) > 25 GeV for |eta| < 2.5 and pt(dR=0.4) > 30 GeV for 2.5 < |eta| < 4.5
    - pt(dR=0.4,lead) > 45 GeV
  - pt(dR=1.0) > 200 GeV; |eta| < 2.0
  - If fat jet, that is the signal jet
  - signal jets are inclusive in Nbjet
 
* VBF selection
  - 2 non-b-tagged jets in opposite directions (eta1*eta2 < 0)
  - Pick highest mjj pair
  - m(jj,tag) > 500 GeV; dEta(jj,tag) > 4

* Z selection
  - Pick jet(s) excluding VBF jets
  - m(jj) or m(J) consistent with mZ

* Optimised cuts
  - pt(jets) > 0.1 * m(lljj) for resolved case
  - pt(V->lep)/m(VV) > 0.4 and, for boosted, pt(J)/m(VV) > 0.4

H -> ZZ -> vvqq
---------------

* MET > 160 GeV

* Lepton veto 
  - pt > 7 GeV and |eta| < 2.5

* At least 4 dR=0.4 jets or at least 2 dR=0.4 jets (j) and 1 dR=1.0 fatjet (J)
  - pt(dR=0.4) > 25 GeV for |eta| < 2.5 and pt(dR=0.4) > 30 GeV for 2.5 < |eta| < 4.5
    - pt(dR=0.4,lead) > 45 GeV
  - pt(dR=1.0) > 200 GeV; |eta| < 2.0
  - If fat jet, that is the signal jet
  - signal jets are inclusive in Nbjet

* VBF selection
  - 2 non-b-tagged jets in opposite directions (eta1*eta2 < 0)
  - Pick highest mjj pair
  - m(jj,tag) > 500 GeV; dEta(jj,tag) > 4

* Z selection
  - Pick jets excluding VBF jets
  - m(jj) or m(J) consistent with mZ

* Optimised cuts
  - pt(jets) > 0.1 * mH where mH is the test heavy higgs mass for resolved jets
  - MET/mT > 0.45 where mT is transverse mass