Abstract: A search for high-mass resonances decaying into τ<sup>+</sup>τ<sup>−</sup> final states using proton-proton collisions at s=8$$ \sqrts=8 $$ 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<sup>−1</sup>. 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<sup>+</sup>τ<sup>−</sup> 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.[Figure not available: see fulltext.]

The ATLAS collaboration, N., Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., et al. (2015). A search for high-mass resonances decaying to τ<sup>+</sup>τ<sup>−</sup> in pp collisions at √s =8 TeV with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 2015(7), 157-1-157-44 [10.1007/JHEP07(2015)157].

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

ALBERGHI, GIAN LUIGI;BELLAGAMBA, LORENZO;BOSCHERINI, DAVIDE;BRUNI, ALESSIA;BRUNI, GRAZIANO;DE CASTRO, STEFANO;FABBRI, LAURA;FRANCHINI, MATTEO;GABRIELLI, ALESSANDRO;GIACOBBE, BENEDETTO;LASAGNI MANGHI, FEDERICO;MASSA, LORENZO;MENGARELLI, ALBERTO;POLINI, ALESSANDRO;RINALDI, LORENZO;ROMANO, MARINO;SBARRA, CARLA;SEMPRINI CESARI, NICOLA;Skinner, M. B.;SPIGHI, ROBERTO;VALENTINETTI, SARA;VILLA, MAURO;Vivarelli, I.;ZOCCOLI, ANTONIO;
2015

Abstract

Abstract: A search for high-mass resonances decaying into τ+τ final states using proton-proton collisions at s=8$$ \sqrts=8 $$ 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.[Figure not available: see fulltext.]
2015
The ATLAS collaboration, N., Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., et al. (2015). A search for high-mass resonances decaying to τ<sup>+</sup>τ<sup>−</sup> in pp collisions at √s =8 TeV with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 2015(7), 157-1-157-44 [10.1007/JHEP07(2015)157].
The ATLAS collaboration, Null; Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; Abouzeid, O.S.; Abram...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/548706
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