Search for neutral long-lived particles in pp collisions at √s= 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter
A search for decays of pair-produced neutral long-lived particles (LLPs) is presented using 139 fb−1 of proton-proton collision data collected by the ATLAS detector at the LHC in 2015-2018 at a centre-of-mass energy of 13 TeV. Dedicated techniques were developed for the reconstruction of displaced j...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
01 June 2022
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| In: |
Journal of high energy physics
Year: 2022, Heft: 6, Pages: 1-49 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP06(2022)005 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP06(2022)005
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| Verfasserangaben: | The ATLAS collaboration* |
MARC
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| 245 | 1 | 0 | |a Search for neutral long-lived particles in pp collisions at √s= 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter |c The ATLAS collaboration* |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Search for neutral long-lived particles in proton-proton collisions at square root s= 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter |
| 264 | 1 | |c 01 June 2022 | |
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| 500 | |a *The ATLAS collaboration: G. Aad, L.M. Baltes, F. Bartels, F.L. Castillo, M.M. Czurylo, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, M. Klassen, A. Krishnan, 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, X. Yue, J. Zinsser [und sehr viele weitere Personen] | ||
| 500 | |a Im Titel steht der Buchstabe s unter dem Wurzelsymbol | ||
| 500 | |a Gesehen am 27.06.2022 | ||
| 520 | |a A search for decays of pair-produced neutral long-lived particles (LLPs) is presented using 139 fb−1 of proton-proton collision data collected by the ATLAS detector at the LHC in 2015-2018 at a centre-of-mass energy of 13 TeV. Dedicated techniques were developed for the reconstruction of displaced jets produced by LLPs decaying hadronically in the ATLAS hadronic calorimeter. Two search regions are defined for different LLP kinematic regimes. The observed numbers of events are consistent with the expected background, and limits for several benchmark signals are determined. For a SM Higgs boson with a mass of 125 GeV, branching ratios above 10% are excluded at 95% confidence level for values of c times LLP mean proper lifetime in the range between 20 mm and 10 m depending on the model. Upper limits are also set on the cross-section times branching ratio for scalars with a mass of 60 GeV and for masses between 200 GeV and 1 TeV. | ||
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