Aad, G;
Abbott, B;
Abbott, DC;
Abud, AA;
Abeling, K;
Abhayasinghe, DK;
Abidi, SH;
... et alia, .; + view all
(2021)
Search for heavy resonances decaying into a pair of Z bosons in the ℓ⁺ ℓ ¯ℓ'⁺ ℓ'¯ and ℓ⁺ ℓ¯ν\bar{ν} states using 139 fb¯¹ of proton–proton collisions at \sqrt{s} = 13 TeV with the ATLAS detector.
European Physical Journal C
, 81
(4)
, Article 332. 10.1140/epjc/s10052-021-09013-y.
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Abstract
A search for heavy resonances decaying into a pair of Z bosons leading to \ell ^+\ell ^-\ell '^+\ell '^- and \ell ^+\ell ^-\nu {{\bar{\nu }}} final states, where \ell stands for either an electron or a muon, is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV collected from 2015 to 2018 that corresponds to the integrated luminosity of 139 \mathrm {fb}^{-1} recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. Different mass ranges spanning 200 GeV to 2000 GeV for the hypothetical resonances are considered, depending on the final state and model. In the absence of a significant observed excess, the results are interpreted as upper limits on the production cross section of a spin-0 or spin-2 resonance. The upper limits for the spin-0 resonance are translated to exclusion contours in the context of Type-I and Type-II two-Higgs-doublet models, and the limits for the spin-2 resonance are used to constrain the Randall–Sundrum model with an extra dimension giving rise to spin-2 graviton excitations.
| Type: | Article |
|---|---|
| Title: | Search for heavy resonances decaying into a pair of Z bosons in the ℓ⁺ ℓ ¯ℓ'⁺ ℓ'¯ and ℓ⁺ ℓ¯ν\bar{ν} states using 139 fb¯¹ of proton–proton collisions at \sqrt{s} = 13 TeV with the ATLAS detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-021-09013-y |
| Publisher version: | https://doi.org/10.1140/epjc/s10052-021-09013-y |
| Language: | English |
| Additional information: | © 2021 Springer Nature Switzerland AG. This article is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10126891 |
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