Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a Z boson in the ℓ+ℓ−t¯t and ν¯νb¯b final states using 140 fb−1 of data collected with the ATLAS detector
A search for a heavy CP-odd Higgs boson, A, decaying into a Z boson and a heavy CP-even Higgs boson, H, is presented. It uses the full LHC Run 2 dataset of pp collisions at √s = 13 TeV collected with the ATLAS detector, corresponding to an integrated luminosity of 140 fb−1. The search for A → ZH is...
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
26 February 2024
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| In: |
Journal of high energy physics
Year: 2024, Heft: 2, Pages: 1-56 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP02(2024)197 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP02(2024)197
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| Verfasserangaben: | The ATLAS collaboration |
MARC
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| 245 | 1 | 0 | |a Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a Z boson in the ℓ+ℓ−t¯t and ν¯νb¯b final states using 140 fb−1 of data collected with the ATLAS detector |c The ATLAS collaboration |
| 246 | 3 | 3 | |a Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a Z boson in the ell + ell - tt overline and nu overline nu b overline final states using 140 fb −1 of data collected with the ATLAS detector |
| 264 | 1 | |c 26 February 2024 | |
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| 500 | |a Im Text ist "+" "-" und "-1" hochgestellt | ||
| 500 | |a 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, 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 viele weitere] | ||
| 500 | |a Gesehen am 25.10.2024 | ||
| 520 | |a A search for a heavy CP-odd Higgs boson, A, decaying into a Z boson and a heavy CP-even Higgs boson, H, is presented. It uses the full LHC Run 2 dataset of pp collisions at √s = 13 TeV collected with the ATLAS detector, corresponding to an integrated luminosity of 140 fb−1. The search for A → ZH is performed in the ℓ+ℓ−t¯t and ν ¯νb¯b final states and surpasses the reach of previous searches in different final states in the region with mH > 350 GeV and mA > 800 GeV. No significant deviation from the Standard Model expectation is found. Upper limits are placed on the production cross-section times the decay branching ratios. Limits with less model dependence are also presented as functions of the reconstructed m(t¯t) and m(b¯b) distributions in the ℓ+ℓ−t¯t and ν ¯νb¯b channels, respectively. In addition, the results are interpreted in the context of two-Higgs-doublet models. | ||
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