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Search for high-mass new phenomena in the dilepton final state using proton-proton collisions at √s = 13TeV with the ATLAS detector

Aaboud, M. and Aad, G. and Abbott, B. and Abdallah, J. and Abdinov, O. and Krasznahorkay, Attila and Pásztor, Gabriella and Tóth, József (2016) Search for high-mass new phenomena in the dilepton final state using proton-proton collisions at √s = 13TeV with the ATLAS detector. PHYSICS LETTERS B, 761. pp. 372-392. ISSN 0370-2693

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Abstract

A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. The search uses 3.2 fb−1 of proton–proton collision data, collected at √s = 13 TeV by the ATLAS experiment at the LHC in 2015. The dilepton invari- ant mass is used as the discriminating variable. No significant deviation from the Standard Model prediction is observed; therefore limits are set on the signal model parameters of in- terest at 95% credibility level. Upper limits are set on the cross-section times branching ratio for resonances decaying to dileptons, and the limits are converted into lower limits on the resonance mass, ranging between 2.74 TeV and 3.36 TeV, depending on the model. Lower limits on the ℓℓqq contact interaction scale are set between 16.7 TeV and 25.2 TeV, also depending on the model.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 24 Aug 2023 14:11
Last Modified: 24 Aug 2023 14:12
URI: http://real.mtak.hu/id/eprint/172034

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