Measurement of the W -&gt; τντ cross section in pp collisions at √s=7 TeV with the ATLAS experiment

ATLAS Collaboration

doi:10.1016/j.physletb.2011.11.057

Scientific article

Open access

English

Measurement of the W -> τν_τ cross section in pp collisions at √s=7 TeV with the ATLAS experiment

ContributorsATLAS Collaboration

Published inPhysics letters. B, vol. 706, no. 4-5, p. 276-294

Publication date2012

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→ τντ tot =11.1±0.3(stat)±1.7(syst)±0.4(lumi) nb.

Keywords

W boson
Standard Model
τ Lepton

Affiliation

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

ATLAS Collaboration. Measurement of the W -> τντ cross section in pp collisions at √s=7 TeV with the ATLAS experiment. In: Physics letters. B, 2012, vol. 706, n° 4-5, p. 276–294. doi: 10.1016/j.physletb.2011.11.057

Article (Published version)

Identifiers

PID : unige:40825
DOI : 10.1016/j.physletb.2011.11.057

Commercial URLhttp://www.sciencedirect.com/science/article/pii/S0370269311014365

ISSN of the journal0370-2693

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Measurement of the W -> τντ cross section in pp collisions at √s=7 TeV with the ATLAS experiment

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Measurement of the W -> τν_τ cross section in pp collisions at √s=7 TeV with the ATLAS experiment