Measurement of the ttbar production cross section using dilepton events in ppbar collisions

the D0 Collaboration

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Measurement of the ttbar production cross section using dilepton events in ppbar collisions

the D0 Collaboration

High Energy Physics - Experiment · Submitted 26 May 2011

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim This result combined with the cross section measurement in the lepton + jets final state yields sigma(ttbar)=7.56 +0.63-0.56 (stat + syst) pb, which agrees with the standard model expectation.

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arXiv ID1105.5384 (version 2)

Pith IDVVEVUXHP, Pith's permanent record of this paper and its review

Citationthe D0 Collaboration. "Measurement of the ttbar production cross section using dilepton events in ppbar collisions." arXiv:1105.5384 (2011). https://pith.science/paper/VVEVUXHP

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What the abstract itself states, as probabilities: claims first 0.02 · states limitation 0.15 · human participants 0.02 · controlled comparison 0.09 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.94 · mentions code or data availability 0.02.

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We present a measurement of the ttbar production cross section sigma(ttbar) in ppbar collisions at sqrt{s} = 1.96 TeV using 5.4 fb-1 of integrated luminosity collected with the D0 detector. We consider final states with at least two jets and two leptons (ee, emu, mumu), and events with one jet for the the emu final state as well. The measured cross section is sigma(ttbar)= 7.36 +0.90-0.79 (stat + syst) pb. This result combined with the cross section measurement in the lepton + jets final state yields sigma(ttbar)=7.56 +0.63-0.56 (stat + syst) pb, which agrees with the standard model expectation. The relative precision of 8% of this measurement is comparable to the latest theoretical calculations.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We present a measurement of the ttbar production cross section sigma(ttbar) in ppbar collisions at sqrt{s} = 1.96 TeV using 5.4 fb-1 of integrated luminosity collected with the D0 detector.	contribution 0.96	0.96	0.08	asserted 1.00
s1	We consider final states with at least two jets and two leptons (ee, emu, mumu), and events with one jet for the the emu final state as well.	method 0.95	0.68	0.02	asserted 0.86
s2	The measured cross section is sigma(ttbar)= 7.36 +0.90-0.79 (stat + syst) pb.	result 1.00	0.98	0.59	asserted 1.00
s3	This result combined with the cross section measurement in the lepton + jets final state yields sigma(ttbar)=7.56 +0.63-0.56 (stat + syst) pb, which agrees with the standard model expectation.	result 0.92	0.92	0.62	asserted 0.88
s4	The relative precision of 8% of this measurement is comparable to the latest theoretical calculations.	interpretation 0.96	0.68	0.11	asserted 1.00

What kind of paper the classifier reports this is: empirical study 1.00 · evidence from observation or experiment 0.86.

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arXiv listing abstract v2

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full text
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The paper

Original abstract

We present a measurement of the ttbar production cross section sigma(ttbar) in ppbar collisions at sqrt{s} = 1.96 TeV using 5.4 fb-1 of integrated luminosity collected with the D0 detector. We consider final states with at least two jets and two leptons (ee, emu, mumu), and events with one jet for the the emu final state as well. The measured cross section is sigma(ttbar)= 7.36 +0.90-0.79 (stat + syst) pb. This result combined with the cross section measurement in the lepton + jets final state yields sigma(ttbar)=7.56 +0.63-0.56 (stat + syst) pb, which agrees with the standard model expectation. The relative precision of 8% of this measurement is comparable to the latest theoretical calculations.

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References

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

NNLO corrections to top-pair production at hadron colliders: the all-fermionic scattering channels
hep-ph 2012-07 accept novelty 6.0 of 10

The paper completes the NNLO QCD calculation for all fermion-pair-initiated top-pair production channels and extracts the constant term in their high-energy logarithmic rise to about 5% precision.
Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation
hep-ph 2011-11 accept novelty 6.0 of 10

Adding next-to-next-to-leading logarithmic soft-gluon resummation to the total top-pair cross section shifts the central value by a few percent and shrinks the scale uncertainty only marginally, so the dominant theory...
Hadronic top-quark pair production with NNLL threshold resummation
hep-ph 2011-09 accept novelty 6.0 of 10

Joint soft-gluon and Coulomb resummation at NNLL accuracy gives top-pair cross sections of 7.22 pb at the Tevatron and 162.6 pb at the 7 TeV LHC, with approximate N3LO coefficients as a by-product.
The top quark and Higgs boson masses and the stability of the electroweak vacuum
hep-ph 2012-07 accept novelty 5.0 of 10

Extracting the top quark mass from the Tevatron top-pair cross section rather than from kinematic reconstruction gives 173.3 +/- 2.8 GeV, which loosens the electroweak vacuum stability bound to 129.8 +/- 5.6 GeV and l...
NNLL threshold resummation for top-pair and single-top production
hep-ph 2012-10 accept novelty 4.0 of 10

Approximate NNLO predictions from NNLL threshold resummation reproduce exact NLO and partial exact NNLO top-quark results to a few percent and match LHC and Tevatron data.

Show 1 more citing papers

High precision fundamental constants at the TeV scale
hep-ph 2014-05 conditional novelty 3.0 of 10

The report compiles 2014 determinations of the strong coupling and the top quark mass, shows that independent extractions scatter beyond their quoted uncertainties, and recommends a standing working group plus scheme-...

How the literature uses it

19 arXiv papers cite this in 34 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 13 sentences without a confident label

Uses its method or tool 1 paper

For the channel, we use the same selections as used for the measurement of the cross section described in Ref. [ref] .

Precision measurement of the ratio B(t -> Wb)/B(t -> Wq) · Introduction · 0.98

Uses its data or values 11 papers

Since LHC data of top-pair productions have been updated, however, we also re-derive new limits on $d_V$ and $d_A$ combining the recent data from the Tevatron for $√(s)=1.96$ TeV and the LHC for $√(s)=7$ TeV assuming $m_t=172.5$ GeV: σ_exp = 7.50±0.48 [pb], (CDF [ref] ) = 7.56^+0.63_-0.56 [pb], (D0 [ref] ) = 187^+22_-21 [pb], (ATLAS [ref] ) = 165.8 ±13.3 [pb].

Optimal-observable Analysis of Possible Non-standard Top-quark Couplings in pp -> t t-bar X -> l^+ X' · section.subsection.$$#1 · 1.00
The two vertical lines in the figure corresponds to the 1-$σ$ boundaries of the maximum allowed $σ_tt̅$ at the Tevatron [ref] .

Top quark physics in the Vector Color-Octet Model · $tt̅$ production and distribution · 0.92
We thus use the following Tevatron data and the corresponding SM estimates: * Inclusive $t t̅$ cross section from D0 [ref] and the QCD NNLO calculation [ref] . * Differential $t t̅$ cross section as a function of $$ from CDF [ref] (Table 3, all bins but the first), to be compared with the approximate NNLO calculation of [ref] (Fig. 12). * Inclusive $t t̅$ forward-backward asymmetry as measured by D0 in the lepton+jet channel [ref] and by CDF in the dilepton channel [ref] , and the corresponding NLO QCD+EW estimate quoted by CDF in [ref] . * Differential $t t̅$ forward-backward asymmetry as a function of $$ from CDF and the NLO QCD+EW estimate [ref] (Table XVII).

Predictions from Heavy New Physics Interpretation of the Top Forward-Backward Asymmetry · Global Fit to the Top Tevatron Data · 0.99

Compares with it 4 papers

At the Tevatron the total top-pair cross section is $7.08 ^+0.00_-0.24 ^+0.36_-0.27$ pb [ref] , in very good agreement with recent results from CDF [ref] and D0 [ref] .

NNLL threshold resummation for top-pair and single-top production · Introduction · 0.85
This is investigated in Figure [ref], where the NNLL prediction for the total cross section obtained with the MSTW2008 [ref] , CT10 [ref] , NNPDF2.1 [ref] and ABM11 [ref] NNLO PDF sets are compared to each other and to the measurements provided by [ref] .

The total top-pair production cross section at NNLL · The $t t̅$ total cross section at NNLL · 0.90
The results are in agreement with each other, and the extracted cross sections are consistent with those from Refs. [ref] .

Precision measurement of the ratio B(t -> Wb)/B(t -> Wq) · Introduction · 1.00

Cites it as background 1 paper

In addition to the production cross section for $$ and single top events in $pp$ [ref] and $pp̅$ [ref] collisions, various properties of the top quark have been studied.

Measurement of the inclusive ttgamma cross section at sqrt(s) = 7 TeV with the ATLAS detector · Top quark properties and experimental results · 0.98

What it cites · 1 sentence without a confident label

Uses the method or tool of 1 paper

Jets are identified with a cone algorithm with radius $R<0.5$ [ref] in the range $|η|< 2.5$.

Run II Jet Physics: Proceedings of the Run II QCD and Weak Boson Physics Workshop · Object Identification · 1.00

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