Search for high-mass ZZ Resonances


Supplemental approved material Return to main public analysis page

Supplemental approved material

Return to main public analysis page


ZZ → 4l channel:

Blue markers correspond to events with M(ZZ) < 300 GeV (low-mass ZZ candidate events) and red markers to events with M(ZZ) > 300 GeV (high-mass ZZ candidate events).

Distribution of M(ZZ+jets), invariant mass of the ZZ pair and all jets with ET > 20 GeV reconstructed in the event. (.pdf file)	Distribution of M(ZZ+jets), invariant mass of the ZZ pair and all jets with ET > 15 GeV reconstructed in event. (.pdf file)	Distributions in y(Z), rapidity of the Z boson, for low-mass and high-mass ZZ candidate events. (.pdf file)
Distribution of Z-constrained M(ZZ). The histogram: distribution of Z-constrained M(ZZ) for the SM ppbar → ZZ process generated with PYTHIA and normalized to 5.8 events (.pdf file)	Distribution of y(ZZ), rapidity of the ZZ system. Probability for 7 out of 8 events to have positive rapidity is 1/32, or about 3%. (.pdf file)


ZZ → ll + MET channel:

Expected distributions in missing ET in ll+MET channel, illustrating choice of the signal region MET > 100 GeV (.pdf file)	Distributions in Δ(φ) for ee+MET and μμ+MET events used for the Drell-Yan normalization. (.pdf file)	A cross-check of the Drell-Yan background normalization (.pdf file)
Another cross-check of the Drell-Yan background normalization - background modeling in the region MET < 50 GeV (.pdf file)	Validation of the W+jets background in the ee+MET channel (.pdf file)	Validation of the W+jets background in the μμ+MET channel (.pdf file)

Kinematic distributions in the ll+MET channel:

Kinematic distributions in OS ee+MET channel (.pdf file)	Kinematic distributions in OS μμ+MET channel (.pdf file)
Kinematic distributions in OS ee+MET channel (.pdf file)	Kinematic distributions in OS μμ+MET channel (.pdf file)
Kinematic distributions, ee+MET channel (.pdf file)	Kinematic distributions, μμ+MET channel (.pdf file)
Kinematic distributions, ee+MET channel (.pdf file)	Kinematic distributions, μμ+MET channel (.pdf file)

Expectation for 1 pb signal from X(325) → ZZ in the ll + MET channel:

MET and PT(Z) distributions, s-channel production of G* (.pdf file)	MET and PT(Z) distributions, G*+jet signal model (.pdf file)
MT and M(VIS) distributions, s-channel production of G* (.pdf file)	MT and M(VIS) distributions, G*+jet signal model (.pdf file)

Systematic uncertainties in the ll + MET channel:

A table of systematics uncertainties (.pdf file)


ZZ → ll + jets channel:

Validation of the background model:

Njets distributions in lljj control region MZZ<300GeV/c2. (.pdf file)
Electron kinematic distributions in eejj control region MZZ<300GeV/c2. (.pdf file)	Muon kinematic distributions in &mu&mu jj control region MZZ<300GeV/c2. (.pdf file)
Electron kinematic distributions in eejj control region MZZ<300GeV/c2. (.pdf file)	Muon kinematic distributions in &mu&mu jj control region MZZ<300GeV/c2. (.pdf file)
Jet kinematic distributions in eejj control region MZZ<300GeV/c2. (.pdf file)	Jet kinematic distributions in &mu&mu jj control region MZZ<300GeV/c2. (.pdf file)
Jet kinematic distributions in eejj control region MZZ<300GeV/c2. (.pdf file)	Jet kinematic distributions in &mu&mu jj control region MZZ<300GeV/c2. (.pdf file)

Expectations in the signal region:

Expected and observed yields in the signal region (.pdf file)	M(ZZ) and Z-constrained M(ZZ) (.pdf file)
M(ZZ) and Z-constrained M(ZZ) (.pdf file)
M(ZZ) and Z-constrained M(ZZ) (.pdf file)	M(ZZ) and Z-constrained M(ZZ) (no signal shown) (.pdf file)
M(ZZ) and Z-constrained M(ZZ) (.pdf file)	M(ZZ) and Z-constrained M(ZZ) (no signal shown) (.pdf file)

Other kinematic distributions in the signal region: Electron channel:

Electron kinematic distributions in eejj signal region. (.pdf file)	Electron kinematic distributions in eejj signal region. (.pdf file)
Jet kinematic distributions in eejj signal region. (.pdf file)	Jet kinematic distributions in eejj signal region. (.pdf file)

Other kinematic distributions in the signal region: Muon channel:

Muon kinematic distributions in &mu&mu jj signal region. (.pdf file)	Muon kinematic distributions in &mu&mu jj signal region. (.pdf file)
Jet kinematic distributions in &mu&mu jj signal region. (.pdf file)	Jet kinematic distributions in &mu&mu jj signal region. (.pdf file)

Data-driven boosted signal selection:

Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)	M(lljj) for electron and muon channels separately (boosted signal selection). (.pdf file)
Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)	Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)
Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)	Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)
Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)	Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)

Jet distributions:

N(jets) (.pdf file)	Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)
N(jets) (.pdf file)	Expected and observed yields for "boosted signal" selection, PT(ZZ) > 40 GeV. (.pdf file)


Limits:

Z(ee) + MET channel (.pdf file)	Z(μμ) + MET channel (.pdf file)
Choice of different kinematic variables in Z+MET channel (.pdf file)
Sensitivities for various model/selection choices in Z+jets channel (.pdf file)	Table with combined limits (.pdf file)