Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/101802
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Type: | Journal article |
Title: | Measurement of τ polarization in W → τν decays with the ATLAS detector in pp collisions at √s = 7 TeV |
Other Titles: | Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s = 7 TeV |
Author: | Aad, G. ATLAS Collaboration, |
Citation: | European Physical Journal C: Particles and Fields, 2012; 72(7):2062-1-2062-21 |
Publisher: | Springer |
Issue Date: | 2012 |
ISSN: | 1434-6044 1434-6052 |
Statement of Responsibility: | G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M. J. White ... et al. (ATLAS Collaboration) |
Abstract: | 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 Pτ = −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. |
Keywords: | ATLAS Collaboration |
Rights: | © CERN for the benefit of the ATLAS collaboration 2012. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
DOI: | 10.1140/epjc/s10052-012-2062-6 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1140/epjc/s10052-012-2062-6 |
Appears in Collections: | Aurora harvest 3 Physics publications |
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hdl_101802.pdf | Published Version | 1.66 MB | Adobe PDF | View/Open |
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