RECORD
Evidence for WZ and ZZ production in final states with b-tagged jets
High Energy Physics - Experiment · Submitted 19 Apr 2012
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We present evidence for the combined production of VZ (V=W or Z) events in final states containing charged leptons (electrons or muons) or neutrinos, and heavy flavor jets, using data collected by the DO detector at the Fermilab Tevatron Collider.
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
Open the compiled record
The abstract, sentence by sentence
We present evidence for the combined production of VZ (V=W or Z) events in final states containing charged leptons (electrons or muons) or neutrinos, and heavy flavor jets, using data collected by the DO detector at the Fermilab Tevatron Collider. The analyzed samples correspond to 7.5 to 8.4/fb of ppbar collisions at sqrt s = 1.96 TeV. Assuming the ratio of the production cross sections sigma(WZ) and sigma(ZZ) as predicted by the standard model, we measure the total VZ cross section to be sigma(VZ) = 5.0 +- 1.0 (stat) +1.3 -1.2 (syst) pb. This corresponds to a significance of 3.3 standard deviations above the background only hypothesis. Furthermore, we have separately measured the cross sections for the WZ and ZZ processes to be simga(WZ) = 5.9 +- 1.4 (stat) +- 0.7 (syst) pb and sigma(ZZ) = 0.45 +- 0.61 (stat) +- 1.2 (syst) pb, in agreement with the standard model prediction.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present evidence for the combined production of VZ (V=W or Z) events in final states containing charged leptons (electrons or muons) or neutrinos, and heavy flavor jets, using data collected by the DO detector at the Fermilab Tevatron Collider. | contribution 0.89 | 0.95 | 0.67 | asserted 0.97 |
| s1 | The analyzed samples correspond to 7.5 to 8.4/fb of ppbar collisions at sqrt s = 1.96 TeV. | method 0.99 | 0.63 | 0.02 | asserted 0.99 |
| s2 | Assuming the ratio of the production cross sections sigma(WZ) and sigma(ZZ) as predicted by the standard model, we measure the total VZ cross section to be sigma(VZ) = 5.0 +- 1.0 (stat) +1.3 -1.2 (syst) pb. | result 1.00 | 0.96 | 0.46 | asserted 1.00 |
| s3 | This corresponds to a significance of 3.3 standard deviations above the background only hypothesis. | result 0.87 | 0.93 | 0.20 | asserted 1.00 |
| s4 | Furthermore, we have separately measured the cross sections for the WZ and ZZ processes to be simga(WZ) = 5.9 +- 1.4 (stat) +- 0.7 (syst) pb and sigma(ZZ) = 0.45 +- 0.61 (stat) +- 1.2 (syst) pb, in agreement with the standard model prediction. | result 1.00 | 0.97 | 0.23 | asserted 0.99 |
What was examined, and what was not
- arXiv listing abstract v1
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
We present evidence for the combined production of VZ (V=W or Z) events in final states containing charged leptons (electrons or muons) or neutrinos, and heavy flavor jets, using data collected by the DO detector at the Fermilab Tevatron Collider. The analyzed samples correspond to 7.5 to 8.4/fb of ppbar collisions at sqrt s = 1.96 TeV. Assuming the ratio of the production cross sections sigma(WZ) and sigma(ZZ) as predicted by the standard model, we measure the total VZ cross section to be sigma(VZ) = 5.0 +- 1.0 (stat) +1.3 -1.2 (syst) pb. This corresponds to a significance of 3.3 standard deviations above the background only hypothesis. Furthermore, we have separately measured the cross sections for the WZ and ZZ processes to be simga(WZ) = 5.9 +- 1.4 (stat) +- 0.7 (syst) pb and sigma(ZZ) = 0.45 +- 0.61 (stat) +- 1.2 (syst) pb, in agreement with the standard model prediction.
Human review
How the literature uses it
What this paper does with the arXiv papers it cites
What it cites · 1 sentence without a confident label
Uses the method or tool of 5 papers
-
This algorithm is an upgraded version of the neural network $b$-tagging tool used previously [ref] .
b-Jet Identification in the D0 Experiment · Summary of Contributing Analyses · 0.87
-
The fraction of the $W/Z$+jets in which the jets arise from heavy quarks ($b$ or $c$) is obtained from NLO calculations using [ref] .
MCFM for the Tevatron and the LHC · Summary of Contributing Analyses · 0.89
-
The other backgrounds are generated by [ref] and [ref] , with [ref] providing parton-showering and hadronization.
PYTHIA 6.2 Physics and Manual · Summary of Contributing Analyses · 0.97
Uses data or values from 4 papers
-
The background from $WW$ events is normalized to NLO calculations from [ref] .
An update on vector boson pair production at hadron colliders · Summary of Contributing Analyses · 0.84
-
The background from events is normalized to the approximate NNLO cross section [ref] .
Measuring the running top-quark mass · Summary of Contributing Analyses · 0.95
-
The $s$-channel and $t$-channel cross sections for the production of single-top quarks are from approximate NNLO+NNLL calculations [ref] and approximate NNNLO+NLL calculations [ref] , respectively.
Single top quark production cross section at hadron colliders · Summary of Contributing Analyses · 0.93
Compares with 1 paper
-
This measurement is consistent with the NLO SM prediction of $σ(VZ)=±$ pb [ref] .
An update on vector boson pair production at hadron colliders · Measurement of the $WZ+ZZ$ Cross Section · 0.97
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.