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.
A search for high-mass resonances decaying to tau(+)tau(-) in pp collisions at root s=8 TeV with the ATLAS detector / Iuppa, R; Atlas, Collaboration. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2015:7(2015), pp. 15700-15743.
Titolo: | A search for high-mass resonances decaying to tau(+)tau(-) in pp collisions at root s=8 TeV with the ATLAS detector |
Autori: | Iuppa, R; Atlas, Collaboration |
Autori Unitn: | |
Titolo del periodico: | JOURNAL OF HIGH ENERGY PHYSICS |
Anno di pubblicazione: | 2015 |
Numero e parte del fascicolo: | 7 |
Codice identificativo Scopus: | 2-s2.0-84938576452 |
Codice identificativo ISI: | WOS:000358928800001 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/JHEP07(2015)157 |
Handle: | http://hdl.handle.net/11572/162418 |
Citazione: | A search for high-mass resonances decaying to tau(+)tau(-) in pp collisions at root s=8 TeV with the ATLAS detector / Iuppa, R; Atlas, Collaboration. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2015:7(2015), pp. 15700-15743. |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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