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https://hdl.handle.net/10316/106072
Title: | Search for top squarks in events with a Higgs or Z boson using 139 fb−1 of pp collision data at √ s = 13 TeV with the ATLAS detector | Authors: | Fiolhais, M. C. N. Gonçalo, R. Veloso, F. Wolters, H. ATLAS Collaboration |
Issue Date: | 2020 | Publisher: | Springer Nature | Serial title, monograph or event: | European Physical Journal C | Volume: | 80 | Issue: | 11 | Abstract: | This paper presents a search for direct top squark pair production in events with missing transverse momentum plus either a pair of jets consistent with Standard Model Higgs boson decay into b-quarks or a same-flavour oppositesign dilepton pair with an invariant mass consistent with a Z boson. The analysis is performed using the proton–proton collision data at √ s = 13 TeV collected with the ATLAS detector during the LHC Run-2, corresponding to an integrated luminosity of 139 fb−1. No excess is observed in the data above the Standard Model predictions. The results are interpreted in simplified models featuring direct production of pairs of either the lighter top squark (˜t1) or the heavier top squark (˜t2), excluding at 95% confidence level ˜t1 and ˜t2 masses up to about 1220 and 875 GeV, respectively. | URI: | https://hdl.handle.net/10316/106072 | DOI: | 10.1140/epjc/s10052-020-08469-8 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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Search-for-top-squarks-in-events-with-a-Higgs-or-Z-boson-using-139fb-sup-1sup-of-pp-collision-data-at-s13-TeV-with-the-ATLAS-detectorEuropean-Physical-Journal-C.pdf | 4.73 MB | Adobe PDF | View/Open |
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