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Type: Journal article
Title: A search for high-mass resonances decaying to T⁺ T⁻in pp collisions at √s = 8 TeV with the ATLAS detector
Other Titles: A search for high-mass resonances decaying to T(+) T(-)in pp collisions at root s = 8 TeV with the ATLAS detectorr
Author: Aad, G.
ATLAS collaboration
Citation: Journal of High Energy Physics, 2015; 2015(7):157-1-157-43
Publisher: Springer
Issue Date: 2015
ISSN: 1126-6708
Statement of
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration)
Abstract: A search for high-mass resonances decaying into τ+τ− final states using proton-proton collisions at √s=8 TeV produced by the Large Hadron Collider is presented. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 19.5–20.3 fb⁻¹. No statistically significant excess above the Standard Model expectation is observed; 95% credibility upper limits are set on the cross section times branching fraction of Z′ resonances decaying into τ⁺τ⁻ pairs as a function of the resonance mass. As a result, Z′ bosons of the Sequential Standard Model with masses less than 2.02 TeV are excluded at 95% credibility. The impact of the fermionic couplings on the Z′ acceptance is investigated and limits are also placed on a Z′ model that exhibits enhanced couplings to third-generation fermions.
Keywords: Hadron-Hadron; Scattering
Rights: Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
RMID: 0030033226
DOI: 10.1007/JHEP07(2015)157
Appears in Collections:Physics publications

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