Measurement of the W → ℓ ν and Z / γ ∗ → ℓ ℓ Production Cross Sections in Proton-Proton Collisions at s = 7 TeV with the ATLAS Detector

Name: Measurement of the W → ℓ ν and Z / γ ∗ → ℓ ℓ Production Cross Sections in Proton-Proton Collisions at s = 7 TeV with the ATLAS Detector
Published: Fri Oct 01 04:00:00 EDT 2010

Aad, G.

doi:10.17182/hepdata.56744

Measurement of the $W \to ℓ ν$ and $Z / γ^{*} \to ℓ ℓ$ Production Cross Sections in Proton-Proton Collisions at $\sqrt{s} = 7$ TeV with the ATLAS Detector

Dataset · Fri Oct 01 04:00:00 EDT 2010

DOI:https://doi.org/10.17182/hepdata.56744· OSTI ID:1889810

Aad, G. ^[1]

OSTI

First measurements of the W -> lnu and Z/gamma* -> ll (l = e, mu) production cross sections in proton-proton collisions at sqrt(s) = 7 TeV are presented using data recorded by the ATLAS experiment at the LHC. The results are based on 2250 W -> lnu and 179 Z/gamma* -> ll candidate events selected from a data set corresponding to an integrated luminosity of approximately 320 nb-1. The measured total W and Z/gamma*-boson production cross sections times the respective leptonic branching ratios for the combined electron and muon channels are sigma_W^tot * BR(W -> lnu) = 9.96 +- 0.23(stat) +- 0.50(syst) +- 1.10(lumi) nb and sigma_Z/gamma*^tot * BR(Z/gamma* -> ll) = 0.82 +- 0.06(stat) +- 0.05(syst) +- 0.09(lumi) nb (within the invariant mass window 66 < m_ll < 116 GeV). The W/Z cross-section ratio is measured to be 11.7 +- 0.9(stat) +- 0.4(syst). In addition, measurements of the W+ and W- production cross sections and of the lepton charge asymmetry are reported. Theoretical predictions based on NNLO QCD calculations are found to agree with the measurements. Numerical values supplied by M Vincter.

Research Organization:: USDOE Office of Science (SC) (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: The ATLAS collaboration; The ATLAS collaboration

OSTI ID:: 1889810

Country of Publication:: United States

Language:: English

References (1)

Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at $ \sqrt {s} = 7\;{\text{TeV}} $ with the ATLAS detector Aad, G.; Abbott, B.; Abdallah, J. Journal of High Energy Physics, Vol. 2010, Issue 12 https://doi.org/10.1007/JHEP12(2010)060	journal	December 2010

Cited By (1)

Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at $ \sqrt {s} = 7\;{\text{TeV}} $ with the ATLAS detector Aad, G.; Abbott, B.; Abdallah, J. Journal of High Energy Physics, Vol. 2010, Issue 12 https://doi.org/10.1007/JHEP12(2010)060	journal	December 2010

Similar Records

Measurement of the $W \to \ell\nu$ and $Z/\gamma^* \to \ell\ell$ Production Cross Sections in Proton-Proton Collisions at $\sqrt{s} = 7$ TeV with the ATLAS Detector

Journal Article · Fri Oct 01 00:00:00 EDT 2010 · JHEP · OSTI ID:1847835

Measurement of the

W^{\pm} Z

production cross section and limits on anomalous triple gauge couplings in proton-proton collisions at

\sqrt{s} = 7

TeV with the ATLAS detector

Dataset · Tue Nov 01 00:00:00 EDT 2011 · OSTI ID:1890710

Table 21 of Measurement of the

W \to ℓ ν

and

Z / γ^{*} \to ℓ ℓ

Production Cross Sections in Proton-Proton Collisions at

\sqrt{s} = 7

TeV with the ATLAS Detector

Dataset · Fri Oct 01 00:00:00 EDT 2010 · OSTI ID:1924271

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS