Measurement of the W to tau nu Cross Section in pp Collisions at sqrt(s) = 7 TeV with the ATLAS experiment

G. Aad, Mogens Dam, Jørgen Beck Hansen, Peter Henrik Hansen, Nele Maria Philomena Boelaert, John Renner Hansen, Jørn Dines Hansen, Morten Dam Jørgensen, Simon Johann Franz Heisterkamp, Esben Bryndt Klinkby, Sascha Mehlhase, Björn Stefan Nilsson, Troels Christian Petersen, Stefania Xella

26 Citations (Scopus)

Abstract

The cross section for the production of W bosons with subsequent decay W→τντ is measured with the ATLAS detector at the LHC. The analysis is based on a data sample that was recorded in 2010 at a proton-proton center-of-mass energy of s=7 TeV and corresponds to an integrated luminosity of 34 pb-1. The cross section is measured in a region of high detector acceptance and then extrapolated to the full phase space. The product of the total W production cross section and the W→τντ branching ratio is measured to be σW→τντtot=11.1±0.3(stat)±1.7(syst)±0.4(lumi) nb.

Original languageEnglish
JournalPhysics Letters B
Volume706
Issue number4-5
Pages (from-to)276-294
Number of pages20
ISSN0370-2693
DOIs
Publication statusPublished - 5 Jan 2012

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