Journal of High Energy Physics > 2015 > 2015 > 7 > 1-44
A search for high-mass resonances decaying to τ+τ− in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector
Source
Abstract
A search for high-mass resonances decaying into τ+τ− final states using proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ 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.
Identifiers
journal e-ISSN : | 1029-8479 |
DOI | 10.1007/JHEP07(2015)157 |
Authors
B. Abbott
- University of Oklahoma, Homer L. Dodge Department of Physics and Astronomy, Norman, United States