A search for R-parity-conserving supersymmetry in events with large missing transverse momentum, jets and at least one hadronically decaying τ-lepton is presented. Both gluino and squark pair production are considered, with the cascade decay of each gluino or squark producing either a τ-slepton or a τ-sneutrino. Three channels are examined, requiring either exactly one hadronically decaying τ-lepton and no other leptons, exactly one hadronically decaying τ-lepton and at least one other lepton, or two or more hadronically decaying τ-leptons. Analyses in the three channels are optimised independently and combined statistically. Two separate analysis strategies, either a cut-and-count or machine-learning approach, are used. The search uses 140 fb-1 and 51.8 fb-1 of pp collision data recorded by the ATLAS detector at the Large Hadron Collider during 2015–2018 at s=13 TeV and 2022–2023 at s=13.6 TeV, respectively. Gluino masses below 2.25 TeV and squark masses up to 1.7 TeV are excluded

Search for squarks and gluinos in pp collisions at s=13 TeV and 13.6 TeV in events with τ-leptons, jets and missing transverse momentum using the ATLAS detector / Zwalinski, L., Zormpa, O., Zorbas, T.G., Zografos, A., Zoch, K., Zoccoli, A., Zivkovic, L., Ziolkowski, M., Zinsser, J., Zimine, N.I., Zhukov, K., Zhuang, X., Zhu, Y., Zhu, Y., Zhu, X., Zhu, J., Zhu, C.G., Zhou, Y., Zhou, Y., Zhou, Y., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 85:12(2025). [10.1140/epjc/s10052-025-14957-6]

Search for squarks and gluinos in pp collisions at s=13 TeV and 13.6 TeV in events with τ-leptons, jets and missing transverse momentum using the ATLAS detector

Rossi E.;Massarotti P.;Della Pietra M.;D'Avanzo A.;Cirotto F.;Casolaro P.;Canale V.;Alviggi M.;Aloisio A.;
2025

Abstract

A search for R-parity-conserving supersymmetry in events with large missing transverse momentum, jets and at least one hadronically decaying τ-lepton is presented. Both gluino and squark pair production are considered, with the cascade decay of each gluino or squark producing either a τ-slepton or a τ-sneutrino. Three channels are examined, requiring either exactly one hadronically decaying τ-lepton and no other leptons, exactly one hadronically decaying τ-lepton and at least one other lepton, or two or more hadronically decaying τ-leptons. Analyses in the three channels are optimised independently and combined statistically. Two separate analysis strategies, either a cut-and-count or machine-learning approach, are used. The search uses 140 fb-1 and 51.8 fb-1 of pp collision data recorded by the ATLAS detector at the Large Hadron Collider during 2015–2018 at s=13 TeV and 2022–2023 at s=13.6 TeV, respectively. Gluino masses below 2.25 TeV and squark masses up to 1.7 TeV are excluded
2025
Search for squarks and gluinos in pp collisions at s=13 TeV and 13.6 TeV in events with τ-leptons, jets and missing transverse momentum using the ATLAS detector / Zwalinski, L., Zormpa, O., Zorbas, T.G., Zografos, A., Zoch, K., Zoccoli, A., Zivkovic, L., Ziolkowski, M., Zinsser, J., Zimine, N.I., Zhukov, K., Zhuang, X., Zhu, Y., Zhu, Y., Zhu, X., Zhu, J., Zhu, C.G., Zhou, Y., Zhou, Y., Zhou, Y., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 85:12(2025). [10.1140/epjc/s10052-025-14957-6]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/1027054
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