A search for high-mass resonances decaying to tau(+)tau(-) in pp collisions at root s=8 TeV with the ATLAS detectorShow others and affiliations
Number of Authors: 28312015 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 7, article id 157Article in journal (Refereed) Published
Abstract [en]
A search for high-mass resonances decaying into tau(+)tau(-) final states using proton-proton collisions at root 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 tau(+)tau(-) 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.
Place, publisher, year, edition, pages
2015. no 7, article id 157
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-261758DOI: 10.1007/JHEP07(2015)157ISI: 000358928800001OAI: oai:DiVA.org:uu-261758DiVA, id: diva2:851179
Note
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1007/JHEP07(2015)157
2015-09-032015-09-032017-12-04Bibliographically approved