TY - JOUR
T1 - Search for associated production of a ํ boson with an invisibly decaying Higgs boson or dark matter candidates at โํ = 13 TeV with the ATLAS detector
AU - ATLAS Collaboration
AU - Newman, Paul
PY - 2022/6/10
Y1 - 2022/6/10
N2 - A search for invisible decays of the Higgs boson as well as searches for dark matter candidates, produced together with a leptonically decaying Z boson, are presented. The analysis is performed using protonโproton collisions at a centre-of-mass energy of 13 TeV, delivered by the LHC, corresponding to an integrated luminosity of 139 fb-1ย and recorded by the ATLAS experiment. Assuming Standard Model cross-sections for ZH production, the observed (expected) upper limit on the branching ratio of the Higgs boson to invisible particles is found to be 19% (19%) at the 95% confidence level. Exclusion limits are also set for simplified dark matter models and two-Higgs-doublet models with an additional pseudoscalar mediator.
AB - A search for invisible decays of the Higgs boson as well as searches for dark matter candidates, produced together with a leptonically decaying Z boson, are presented. The analysis is performed using protonโproton collisions at a centre-of-mass energy of 13 TeV, delivered by the LHC, corresponding to an integrated luminosity of 139 fb-1ย and recorded by the ATLAS experiment. Assuming Standard Model cross-sections for ZH production, the observed (expected) upper limit on the branching ratio of the Higgs boson to invisible particles is found to be 19% (19%) at the 95% confidence level. Exclusion limits are also set for simplified dark matter models and two-Higgs-doublet models with an additional pseudoscalar mediator.
KW - hep-ex
UR - https://arxiv.org/abs/2111.08372
U2 - 10.1016/j.physletb.2022.137066
DO - 10.1016/j.physletb.2022.137066
M3 - Article
SN - 0370-2693
VL - 829
JO - Physics Letters B
JF - Physics Letters B
M1 - 137066
ER -