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| Titel: | Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of τ-leptons with the ATLAS detector |
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| Mitwirkende: | Aad, Georges [VerfasserIn]  |
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| | Baltes, Lisa Marie [VerfasserIn] |
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| | Bartels, Falk [VerfasserIn] |
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| | Czurylo, Marta [VerfasserIn] |
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| | Rio, Fernando del [VerfasserIn] |
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| | Dittmeier, Sebastian [VerfasserIn] |
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| | Dunford, Monica [VerfasserIn] |
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| | Franchino, Silvia [VerfasserIn] |
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| | Junkermann, Thomas [VerfasserIn] |
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| | Klassen, Martin [VerfasserIn] |
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| | Mkrtchyan, Tigran [VerfasserIn] |
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| | Ott, Philipp [VerfasserIn] |
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| | Rassloff, Damir Fabrice [VerfasserIn] |
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| | Rodriguez Bosca, Sergi [VerfasserIn] |
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| | Sauer, Christof [VerfasserIn] |
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| | Schöning, André [VerfasserIn] |
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| | Schultz-Coulon, Hans-Christian [VerfasserIn] |
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| | Sothilingam, Varsiha [VerfasserIn] |
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| | Stamen, Rainer [VerfasserIn] |
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| | Starovoitov, Pavel [VerfasserIn] |
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| | Vigani, Luigi [VerfasserIn] |
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| | Weber, Sebastian [VerfasserIn] |
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| | Wessels, Martin [VerfasserIn] |
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| | Zinßer, Joachim [VerfasserIn] |
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| Körperschaft: | ATLAS Collaboration [VerfasserIn] |
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| Verf.angabe: | the ATLAS collaboration |
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| E-Jahr: | 2023 |
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| Jahr: | 03 October 2023 |
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| Umfang: | 46 S. |
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| Illustrationen: | Illustrationen |
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| Fussnoten: | The ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, M.M. Czurylo, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, 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 2905 weitere] ; Gesehen am 14.02.2024 |
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| Titel Quelle: | Enthalten in: Journal of high energy physics |
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| Ort Quelle: | Berlin : Springer, 1997 |
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| Jahr Quelle: | 2023 |
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| Band/Heft Quelle: | (2023), 10, Artikel-ID 9, Seite 1-46 |
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| ISSN Quelle: | 1029-8479 |
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| Abstract: | A search for a new heavy scalar particle X decaying into a Standard Model (SM) Higgs boson and a new singlet scalar particle S is presented. The search uses a proton-proton (pp) collision data sample with an integrated luminosity of 140 fb−1 recorded at a centre-of-mass energy of $$ \sqrt{s} $$= 13 TeV with the ATLAS detector at the Large Hadron Collider. The most sensitive mass parameter space is explored in X mass ranging from 500 to 1500 GeV, with the corresponding S mass in the range 200-500 GeV. The search selects events with two hadronically decaying τ-lepton candidates from H → τ+τ− decays and one or two light leptons (ℓ = e, μ) from S → VV (V = W, Z) decays while the remaining V boson decays hadronically or to neutrinos. A multivariate discriminant based on event kinematics is used to separate the signal from the background. No excess is observed beyond the expected SM background and 95% confidence level upper limits between 72 fb and 542 fb are derived on the cross-section σ(pp → X → SH) assuming the same SM-Higgs boson-like decay branching ratios for the S → VV decay. Upper limits on the visible cross-sections σ(pp → X → SH → WWττ) and σ(pp → X → SH → ZZττ) are also set in the ranges 3-26 fb and 6-33 fb, respectively. |
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| DOI: | doi:10.1007/JHEP10(2023)009 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
kostenfrei: Volltext: https://doi.org/10.1007/JHEP10(2023)009 |
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| | kostenfrei: Volltext: https://link.springer.com/article/10.1007/JHEP10(2023)009 |
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| | DOI: https://doi.org/10.1007/JHEP10(2023)009 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | Hadron-Hadron Scattering |
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| K10plus-PPN: | 1880721546 |
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| Verknüpfungen: | → Zeitschrift |
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Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of τ-leptons with the ATLAS detector / Aad, Georges [VerfasserIn]; 03 October 2023 (Online-Ressource)
