Rimoldi, Marco; Mullier, Geoffrey; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Meloni, Federico; Beck, Hans Peter; Ereditato, Antonio (2018). Search for resonant and non-resonant Higgs boson pair production in the bb̅τ⁺τ⁻ decay channel in pp collisions at √s=13 TeV with the ATLAS detector. Physical review letters, 121(19) American Physical Society 10.1103/PhysRevLett.121.191801
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A search for resonant and nonresonant pair production of Higgs bosons in the bb̅τ⁺τ⁻ final state is presented. The search uses 36.1 fb⁻¹ of pp collision data with √s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. Decays of the τ-lepton pairs with at least one τ lepton decaying to final states with hadrons and a neutrino are considered. No significant excess above the expected background is observed in the data. The cross-section times branching ratio for nonresonant Higgs boson pair production is constrained to be less than 30.9 fb, 12.7 times the standard model expectation, at 95% confidence level. The data are also analyzed to probe resonant Higgs boson pair production, constraining a model with an extended Higgs sector based on two doublets and a Randall-Sundrum bulk graviton model. Upper limits are placed on the resonant Higgs boson pair production cross-section times branching ratio, excluding resonances X in the mass range 305 GeV < mX < 402 GeV in the simplified hMSSM minimal supersymmetric model for tan β = 2 and excluding bulk Randall-Sundrum gravitons GKK in the mass range 325 GeV <mGKK < 885 GeV for k= M̅Pl =1.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Haug, Sigve, Weber, Michele, Beck, Hans Peter |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0031-9007 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
BORIS Import LHEP |
Date Deposited: |
18 Jun 2019 08:56 |
Last Modified: |
05 Dec 2022 15:27 |
Publisher DOI: |
10.1103/PhysRevLett.121.191801 |
Related URLs: |
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Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwaehnt |
BORIS DOI: |
10.7892/boris.129022 |
URI: |
https://boris.unibe.ch/id/eprint/129022 |
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