Measurement of τ polarization in W→τν decays with the ATLAS detector in pp collisions at s√=7 TeV

Please always quote using this URN: urn:nbn:de:bvb:20-opus-127807

  • In this paper, a measurement of τ polarization in W→τν decays is presented. It is measured from the energies of the decay products in hadronic τ decays with a single final state charged particle. The data, corresponding to an integrated luminosity of 24 pb\(^{−1}\), were collected by the ATLAS experiment at the Large Hadron Collider in 2010. The measured value of the τ polarization is P\(_τ\)=−1.06±0.04 (stat)\(^{+0.05}_{−0.07}\) (syst), in agreement with the Standard Model prediction, and is consistent with a physically allowed 95 % CLIn this paper, a measurement of τ polarization in W→τν decays is presented. It is measured from the energies of the decay products in hadronic τ decays with a single final state charged particle. The data, corresponding to an integrated luminosity of 24 pb\(^{−1}\), were collected by the ATLAS experiment at the Large Hadron Collider in 2010. The measured value of the τ polarization is P\(_τ\)=−1.06±0.04 (stat)\(^{+0.05}_{−0.07}\) (syst), in agreement with the Standard Model prediction, and is consistent with a physically allowed 95 % CL interval [−1,−0.91]. Measurements of τ polarization have not previously been made at hadron colliders.show moreshow less

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Metadaten
URN:urn:nbn:de:bvb:20-opus-127807
Document Type:Journal article
Faculties:Fakultät für Physik und Astronomie
Language:English
Parent Title (English):The European Physical Journal C
Year of Completion:2012
Volume:72
Issue:2062
Source:European Physical Journal C (2012) 72:2062 DOI 10.1140/epjc/s10052-012-2062-6
DOI:https://doi.org/10.1140/epjc/s10052-012-2062-6
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 539 Moderne Physik
Tag:ATLAS detector; Monte Carlo methods; calorimeter; detector track; electroweak background; energy scale uncertainty; jet axis; jet energy; multijet background; multijet event; signal template; total systematic uncertainty; track momentum; track multipilicty; transverse momentum
Release Date:2016/11/14
Creating Corporation:ATLAS Collaboration
Licence (German):License LogoCC BY: Creative-Commons-Lizenz: Namensnennung