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Aad, Georges
[Verfasser:in];
Baltes, Lisa Marie
[Verfasser:in];
Bartels, Falk
[Verfasser:in];
Czurylo, Marta
[Verfasser:in];
Rio, Fernando del
[Verfasser:in];
Dittmeier, Sebastian
[Verfasser:in];
Dunford, Monica
[Verfasser:in];
Franchino, Silvia
[Verfasser:in];
Junkermann, Thomas
[Verfasser:in];
Klassen, Martin
[Verfasser:in];
Mkrtchyan, Tigran
[Verfasser:in];
Ott, Philipp
[Verfasser:in];
Rassloff, Damir Fabrice
[Verfasser:in];
Rodriguez Bosca, Sergi
[Verfasser:in];
Sauer, Christof
[Verfasser:in];
Schöning, André
[Verfasser:in];
Schultz-Coulon, Hans-Christian
[Verfasser:in];
Sothilingam, Varsiha
[Verfasser:in];
Stamen, Rainer
[Verfasser:in];
Starovoitov, Pavel
[Verfasser:in];
Vigani, Luigi
[Verfasser:in];
Weber, Sebastian
[Verfasser:in];
Wessels, Martin
[Verfasser:in];
Zinßer, Joachim
[Verfasser:in]
;
ATLAS Collaboration
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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- Medientyp: E-Artikel
- 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
- Beteiligte: Aad, Georges [Verfasser:in]; Baltes, Lisa Marie [Verfasser:in]; Bartels, Falk [Verfasser:in]; Czurylo, Marta [Verfasser:in]; Rio, Fernando del [Verfasser:in]; Dittmeier, Sebastian [Verfasser:in]; Dunford, Monica [Verfasser:in]; Franchino, Silvia [Verfasser:in]; Junkermann, Thomas [Verfasser:in]; Klassen, Martin [Verfasser:in]; Mkrtchyan, Tigran [Verfasser:in]; Ott, Philipp [Verfasser:in]; Rassloff, Damir Fabrice [Verfasser:in]; Rodriguez Bosca, Sergi [Verfasser:in]; Sauer, Christof [Verfasser:in]; Schöning, André [Verfasser:in]; Schultz-Coulon, Hans-Christian [Verfasser:in]; Sothilingam, Varsiha [Verfasser:in]; Stamen, Rainer [Verfasser:in]; Starovoitov, Pavel [Verfasser:in]; Vigani, Luigi [Verfasser:in]; Weber, Sebastian [Verfasser:in]; Wessels, Martin [Verfasser:in]; Zinßer, Joachim [Verfasser:in]
-
Erschienen:
03 October 2023
- Erschienen in: Journal of high energy physics ; (2023), 10, Artikel-ID 9, Seite 1-46
- Sprache: Englisch
- DOI: 10.1007/JHEP10(2023)009
- Identifikator:
- Schlagwörter: Hadron-Hadron Scattering
- Entstehung:
-
Anmerkungen:
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]
- Beschreibung: 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.
- Zugangsstatus: Freier Zugang