A search for high-mass resonances decaying to τ + τ − in pp collisions at s√=8 TeV with the ATLAS detector

2015 | journal article. A publication with affiliation to the University of Göttingen.

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​A search for high-mass resonances decaying to τ + τ − in pp collisions at s√=8 TeV with the ATLAS detector​
Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M. & AbouZeid, O. S. et al.​ (2015) 
Journal of High Energy Physics157.​ DOI: https://doi.org/10.1007/JHEP07(2015)157 

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Authors Group
ATLAS Collaboration
The authors list is uncomplete:
Authors
Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; Zwalinski, L.
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.
Issue Date
2015
Journal
Journal of High Energy Physics 
Project
info:eu-repo/grantAgreement/EC/FP7/246806/EU/European Particle physics Latin American NETwork/EPLANET
Organization
Fakultät für Physik 
ISSN
1029-8479
Language
English

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