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Article
Report number arXiv:1502.07177 ; CERN-PH-EP-2015-018 ; CERN-PH-EP-2015-018
Title A search for high-mass resonances decaying to τ+ττ+τ in pppp collisions at s=8s=8 TeV with the ATLAS detector
Related titleA search for high-mass resonances decaying to τ+ττ+τ in pppp collisions at s=8s=8 TeV with the ATLAS detector
Author(s) ATLAS Collaboration  Pokaż wszystkich 2831 autorów
Publication 2015-07-29
Imprint 25 Feb 2015
Number of pages 49
Note 26 pages plus author list + cover page (50 pages total), 9 figures, 4 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2014-05/
In: JHEP 07 (2015) 157
DOI 10.1007/JHEP07(2015)157
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords exotics ; experimental results
Abstract A search for high-mass resonances decaying into τ+ττ+τ final states using proton-proton collisions at s=8s=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 fb11.  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.
Copyright/License preprint: © 2015-2025 CERN (License: CC-BY-3.0)
publication: © 2015-2025 CERN (License: CC-BY-4.0), sponsored by SCOAP³



Corresponding record in: Inspire
Email contact: a_ciocio@lbl.gov


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