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

, The ATLAS collaboration (2015) A search for high-mass resonances decaying to τ+ τ− in pp collisions at √s =8 TeV with the ATLAS detector. Journal of High Energy Physics, 2015 (7). ISSN 1029-8479

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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.

Item Type:
Journal Article
Journal or Publication Title:
Journal of High Energy Physics
Additional Information:
Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3. Evidence of Acceptance on Publisher PDF
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
75607
Deposited By:
Deposited On:
14 Sep 2015 08:58
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Oct 2020 03:33