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Talk1 h 19 min

Searches for rare and invisible Higgs boson decays and for high-mass resonances with the ATLAS detector

Takuya Nobe and Douglas Michael Schaefer · CERN

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A first talk presents two new ATLAS results on searches for rare and invisible decays of the Higgs boson using the full LHC Run-2 dataset. The as-yet unobserved decay of a Higgs boson to Zγ is searched for in the final state with 2 leptons (e or μ) and a photon. Higgs boson decays to invisible particles, as predicted by a number of models beyond the Standard Model, are searched for in the vector-boson fusion production mode. Such a signature could for example arise if the Higgs boson couples directly to dark matter particles.

In a second talk two new results on searches for high mass resonances in VV and ttbar final stated are presented. At resonance masses well above 1 TeV, these searches face specific challenges and employ new identification techniques to disentangle collimated decay products in highly boosted configurations. In addition to benefiting from the larger dataset, the discovery potential of these analyses has been improved by developing novel object tagging techniques and by using improved background estimation methods. .

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The talk

  1. Searches for rare and invisible Higgs boson decays and for high-mass resonances with the ATLAS detector 2020-04-21 · 1 h 19 min · CERN's player

Credits and licence

Institution
CERN
Department
LHC Seminar
Taught by
Takuya Nobe, Douglas Michael Schaefer
Year
2020
Language
English
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
Who can watch
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