Search for direct top squark pair production in final states with two leptons in √s=13 TeV pp collisions with the ATLAS detector
The results of a search for direct pair production of top squarks in events with two opposite-charge leptons (electrons or muons) are reported, using 36.1fb-1 of integrated luminosity from proton–proton collisions at s=13 TeV collected by the ATLAS detector at the Large Hadron Collider. To cover a r...
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todo:paper_14346044_v77_n12_p_Aaboud2023-10-03T16:15:23Z Search for direct top squark pair production in final states with two leptons in √s=13 TeV pp collisions with the ATLAS detector Aaboud, M. The results of a search for direct pair production of top squarks in events with two opposite-charge leptons (electrons or muons) are reported, using 36.1fb-1 of integrated luminosity from proton–proton collisions at s=13 TeV collected by the ATLAS detector at the Large Hadron Collider. To cover a range of mass differences between the top squark t~ and lighter supersymmetric particles, four possible decay modes of the top squark are targeted with dedicated selections: the decay t~→bχ~1± into a b-quark and the lightest chargino with χ~1±→Wχ~10, the decay t~→tχ~10 into an on-shell top quark and the lightest neutralino, the three-body decay t~→bWχ~10 and the four-body decay t~→b10. No significant excess of events is observed above the Standard Model background for any selection, and limits on top squarks are set as a function of the t~ and χ~10 masses. The results exclude at 95% confidence level t~ masses up to about 720 GeV, extending the exclusion region of supersymmetric parameter space covered by previous searches. © 2017, CERN for the benefit of the ATLAS collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346044_v77_n12_p_Aaboud |
| institution |
Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
The results of a search for direct pair production of top squarks in events with two opposite-charge leptons (electrons or muons) are reported, using 36.1fb-1 of integrated luminosity from proton–proton collisions at s=13 TeV collected by the ATLAS detector at the Large Hadron Collider. To cover a range of mass differences between the top squark t~ and lighter supersymmetric particles, four possible decay modes of the top squark are targeted with dedicated selections: the decay t~→bχ~1± into a b-quark and the lightest chargino with χ~1±→Wχ~10, the decay t~→tχ~10 into an on-shell top quark and the lightest neutralino, the three-body decay t~→bWχ~10 and the four-body decay t~→b10. No significant excess of events is observed above the Standard Model background for any selection, and limits on top squarks are set as a function of the t~ and χ~10 masses. The results exclude at 95% confidence level t~ masses up to about 720 GeV, extending the exclusion region of supersymmetric parameter space covered by previous searches. © 2017, CERN for the benefit of the ATLAS collaboration. |
| format |
JOUR |
| author |
Aaboud, M. |
| spellingShingle |
Aaboud, M. Search for direct top squark pair production in final states with two leptons in √s=13 TeV pp collisions with the ATLAS detector |
| author_facet |
Aaboud, M. |
| author_sort |
Aaboud, M. |
| title |
Search for direct top squark pair production in final states with two leptons in √s=13 TeV pp collisions with the ATLAS detector |
| title_short |
Search for direct top squark pair production in final states with two leptons in √s=13 TeV pp collisions with the ATLAS detector |
| title_full |
Search for direct top squark pair production in final states with two leptons in √s=13 TeV pp collisions with the ATLAS detector |
| title_fullStr |
Search for direct top squark pair production in final states with two leptons in √s=13 TeV pp collisions with the ATLAS detector |
| title_full_unstemmed |
Search for direct top squark pair production in final states with two leptons in √s=13 TeV pp collisions with the ATLAS detector |
| title_sort |
search for direct top squark pair production in final states with two leptons in √s=13 tev pp collisions with the atlas detector |
| url |
http://hdl.handle.net/20.500.12110/paper_14346044_v77_n12_p_Aaboud |
| work_keys_str_mv |
AT aaboudm searchfordirecttopsquarkpairproductioninfinalstateswithtwoleptonsins13tevppcollisionswiththeatlasdetector |
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1807323665282367488 |