Measurement of the $W \\to τ ν_τ$ cross section in $pp$ collisions at $\\sqrts=$7 TeV with the ATLAS experiment
Journal
Physics Letters
Journal Volume
B706
Pages
276-294
Date Issued
2012
Author(s)
Aad, Georges et al. (The ATLAS Collaboration)
Abstract
The cross section for the production of W bosons with subsequent decay W to tau nu 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 sqrt(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 to tau nu branching ratio is measured to be 11.1 +/- 0.3 (stat) +/- 1.7 (syst) +/- 0.4 (lumi) nb.
Type
journal article