eprintid: 10175312 rev_number: 7 eprint_status: archive userid: 699 dir: disk0/10/17/53/12 datestamp: 2023-08-16 13:40:13 lastmod: 2023-08-16 13:40:13 status_changed: 2023-08-16 13:40:13 type: article metadata_visibility: show sword_depositor: 699 creators_name: Facini, Gabriel title: Measurements of W+W− production in decay topologies inspired by searches for electroweak supersymmetry ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F60 note: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. abstract: This paper presents a measurement of fiducial and differential cross-sections for W+W− production in proton–proton collisions at √s = 13 TeV with the ATLAS experiment at the Large Hadron Collider using a dataset corresponding to an integrated luminosity of 139 fb−1. Events with exactly one electron, one muon and no hadronic jets are studied. The fiducial region in which the measurements are performed is inspired by searches for the electroweak production of supersymmetric charginos decaying to twolepton final states. The selected events have moderate values of missing transverse momentum and the ‘stransverse mass’ variable mT2, which is widely used in searches for supersymmetry at the LHC. The ranges of these variables are chosen so that the acceptance is enhanced for direct W+W− production and suppressed for production via top quarks, which is treated as a background. The fiducial cross-section and particle-level differential cross-sections for six variables are measured and compared with two theoretical SM predictions from perturbative QCD calculations. date: 2023-08-10 date_type: published publisher: Società Italiana di Fisica official_url: https://doi.org/10.1140/epjc/s10052-023-11508-9 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2044912 doi: 10.1140/epjc/s10052-023-11508-9 lyricists_name: Facini, Gabriel lyricists_id: GFACI32 actors_name: Facini, Gabriel actors_name: Flynn, Bernadette actors_id: GFACI32 actors_id: BFFLY94 actors_role: owner actors_role: impersonator full_text_status: public publication: European Physical Journal C: Particles and Fields volume: 83 article_number: 718 issn: 1124-1861 citation: Facini, Gabriel; (2023) Measurements of W+W− production in decay topologies inspired by searches for electroweak supersymmetry. European Physical Journal C: Particles and Fields , 83 , Article 718. 10.1140/epjc/s10052-023-11508-9 <https://doi.org/10.1140/epjc%2Fs10052-023-11508-9>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10175312/1/s10052-023-11508-9.pdf