Search for electroweak production of supersymmetric particles in final states with two τ-leptons in √s = 13 TeV pp collisions with the ATLAS detector
Three searches for the direct production of τ-sleptons or charginos and neutralinos in final states with at least two hadronically decaying τ-leptons are presented. For chargino and neutralino production, decays via intermediate τ-sleptons or W and h bosons are considered. The analysis uses a datase...
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| Auteurs principaux: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Collectivité auteur: | |
| Format: | Article (Journal) |
| Langue: | anglais |
| Publié: |
May 13, 2024
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| In: |
Journal of high energy physics
Year: 2024, Numéro: 5, Pages: 1-65 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP05(2024)150 |
| Accès en ligne: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP05(2024)150
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| Notes sur l'auteur: | the ATLAS collaboration |
| Résumé: | Three searches for the direct production of τ-sleptons or charginos and neutralinos in final states with at least two hadronically decaying τ-leptons are presented. For chargino and neutralino production, decays via intermediate τ-sleptons or W and h bosons are considered. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of 139 fb−1, recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. No significant deviation from the expected Standard Model background is observed and supersymmetric particle mass limits at 95% confidence level are obtained in simplified models. For direct production of $$ {\overset{\sim }{\chi}}_1^{+}{\overset{\sim }{\chi}}_1^{-} $$, chargino masses are excluded up to 970 GeV, while $$ {\overset{\sim }{\chi}}_1^{\pm } $$and $$ {\overset{\sim }{\chi}}_2^0 $$masses up to 1160 GeV (330 GeV) are excluded for $$ {\overset{\sim }{\chi}}_1^{\pm }{\overset{\sim }{\chi}}_2^0/{\overset{\sim }{\chi}}_1^{+}{\overset{\sim }{\chi}}_1^{-} $$production with subsequent decays via τ-sleptons (W and h bosons). Masses of τ-sleptons up to 500 GeV are excluded for mass degenerate $$ {\overset{\sim }{\tau}}_{L,R} $$scenarios and up to 425 GeV for $$ {\overset{\sim }{\tau}}_L $$-only scenarios. Sensitivity to $$ {\overset{\sim }{\tau}}_R $$-only scenarios from the ATLAS experiment is presented here for the first time, with $$ {\overset{\sim }{\tau}}_R $$masses excluded up to 350 GeV. |
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| Description: | The ATLAS collaboration: G. Aad, L.M. Baltes, F. Bartels, M.M.Czurylo, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, F. del Rio, S. Rodriguez Bosca, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, J. Zinsser [und 2902 weitere Personen] Gesehen am 25.08.2025 Im Titel steht der Buchstabe "s" unter dem Wurzelsymbol |
| Description matérielle: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP05(2024)150 |