Search for resonant diboson production in the ℓℓq q¯ final state in pp collisions at √ s = 8 TeV with the ATLAS detector

Aad, G. and Abbott, B. and Abdallah, J. and Khalek, S. A. and Abdinov, O. and Krasznahorkay, Attila and Nagai, Yoshikazu and Pásztor, Gabriella (2015) Search for resonant diboson production in the ℓℓq q¯ final state in pp collisions at √ s = 8 TeV with the ATLAS detector. EUROPEAN PHYSICAL JOURNAL C, 75 (2). ISSN 1434-6044

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Abstract

This paper reports on a search for narrow resonances in diboson production in the ℓℓq q¯ final state using pp collision data corresponding to an integrated luminosity o f 20 fb − 1 collected at √ s = 8 TeV with the ATLAS detector at the Large Hadron Collider. No significant excess of data events over the Standard Model expectation is observed. Upper limits at the 95% confidence level are set on the production cross section times branching ratio for Kaluza–Klein gravitons predicted by the Randall– Sundrum model and for Extended Gauge Model W ′ bosons. These results lead to the exclusion of mass values below 740 GeV and 1590 GeV for the graviton and W ′ boson respectively

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