Change search

Measurement of the $Z\to\tau\tau$ Cross Section with the ATLAS Detector
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). (Elementarpartikelfysik)
Stockholm University, Faculty of Science, Department of Physics. (Systemfysik)
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). (Elementarpartikelfysik)
Stockholm University, Faculty of Science, Department of Physics. (Systemfysik)
2011 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 84, no 11, 112006- p.Article in journal (Refereed) Published
##### Abstract [en]

The Z -> tau tau cross section is measured with the ATLAS experiment at the LHC in four different final states determined by the decay modes of the tau leptons: muon-hadron, electron-hadron, electron-muon, and muon-muon. The analysis is based on a data sample corresponding to an integrated luminosity of 36 pb(-1), at a proton-proton center-of-mass energy of root s = 7 TeV. Cross sections are measured separately for each final state in fiducial regions of high detector acceptance, as well as in the full phase space, over the mass region 66-116 GeV. The individual cross sections are combined and the product of the total Z production cross section and Z -> tau tau branching fraction is measured to be 0.97 +/- 0.07(stat) +/- 0.06(syst) +/- 0: 03(lumi) nb, in agreement with next-to-next-to-leading order calculations.

##### Place, publisher, year, edition, pages
2011. Vol. 84, no 11, 112006- p.
##### National Category
Subatomic Physics
Physics
##### Identifiers
ISI: 000298131100002OAI: oai:DiVA.org:su-66746DiVA: diva2:468446
Atlas
##### Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
##### Note
Publikationen har totalt 3025 författare, G. Aad et al.Available from: 2011-12-20 Created: 2011-12-20 Last updated: 2012-01-26Bibliographically approved

#### Open Access in DiVA

No full text

Publisher's full text

#### Search in DiVA

##### By author/editor
Åsman, BarbroBohm, ChristianClément, ChristopheEriksson, DanielGellerstedt, KarlHellman, StenHidvégi, AttilaHolmgren, Sven-OlofJohansson, ErikJon-And, KerstinLundberg, JohanMilstead, DavidMoa, TorbjörnNordkvist, BjörnOhm, ChristianPapadelis, ArasSilverstein, SamuelSjölin, JörgenStrandberg, SaraTylmad, MajaYang, Zhaoyu
##### By organisation
Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
##### In the same journal
Physical Review D. Particles and fields
##### On the subject
Subatomic Physics