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Simultaneous measurements of the t(t)over-bar, W+W-, and Z/gamma* -> tau tau production cross-sections in pp collisions at root s=7 TeV with the ATLAS detector
ATLAS Collaboration
2015
Source PublicationPHYSICAL REVIEW D
ISSN2470-0010
EISSN2470-0029
Volume91Issue:5Pages:52005
SubtypeArticle
AbstractSimultaneous measurements of the t (t) over bar, W+W-, and Z/gamma* -> tau tau production cross-sections using an integrated luminosity of 4.6 fb(-1) of pp collisions at root s = 7 TeV collected by the ATLAS detector at the LHC are presented. Events are selected with two high transverse momentum leptons consisting of an oppositely charged electron and muon pair. The three processes are separated using the distributions of the missing transverse momentum of events with zero and greater than zero jet multiplicities. Measurements of the fiducial cross-section are presented along with results that quantify for the first time the underlying correlations in the predicted and measured cross-sections due to proton parton distribution functions. These results indicate that the correlated next-to-leading-order predictions for t (t) over bar and Z/gamma* -> tau tau underestimate the data, while those at next-to-next-to-leading-order generally describe the data well. The full cross-sections are measured to be sigma(t (t) over bar) = 181.2 +/- 2.8(-9.5)(+9.7) +/- 3.3 +/- 3.3 pb, sigma(W+W-) = 53.3 +/- 2.7(-8.0)(+7.3) +/- 1.0 +/- 0.5 pb, and sigma(Z/gamma* -> tau tau) = 1174 +/- 24(-87)(+72) +/- 21 +/- 9 pb, where the cited uncertainties are due to statistics, systematic effects, luminosity and the LHC beam energy measurement, respectively. The W+W- measurement includes the small contribution from Higgs boson decays, H -> W+W-.
Subject AreaAstronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.91.052005
Indexed BySCI ; INSPIREHEP ; ADS
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics, Particles & Fields
WOS SubjectAstronomy & Astrophysics ; Physics
WOS IDWOS:000351283000001
ADS Bibcode2015PhRvD..91e2005A
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015PhRvD..91e2005A
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015PhRvD..91e2005A/citations
inspireid1304455
inspireURLhttps://inspirehep.net/literature/1304455
Citation statistics
Cited Times:34 [INSPIRE]
Cited Times:14 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228236
Collection实验物理中心
Recommended Citation
GB/T 7714
ATLAS Collaboration. Simultaneous measurements of the t(t)over-bar, W+W-, and Z/gamma* -> tau tau production cross-sections in pp collisions at root s=7 TeV with the ATLAS detector[J]. PHYSICAL REVIEW D,2015,91(5):52005.
APA ATLAS Collaboration.(2015).Simultaneous measurements of the t(t)over-bar, W+W-, and Z/gamma* -> tau tau production cross-sections in pp collisions at root s=7 TeV with the ATLAS detector.PHYSICAL REVIEW D,91(5),52005.
MLA ATLAS Collaboration."Simultaneous measurements of the t(t)over-bar, W+W-, and Z/gamma* -> tau tau production cross-sections in pp collisions at root s=7 TeV with the ATLAS detector".PHYSICAL REVIEW D 91.5(2015):52005.
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