Search for dark matter produced in association with a Higgs boson decaying to tau leptons at √s = 13 TeV with the ATLAS detector Aad, Georges Aguilar Saavedra, Juan Antonio Rodríguez Chala, Mikael Atlas Collaboration, / Hadron-Hadron Scattering A search for dark matter produced in association with a Higgs boson in final states with two hadronically decaying τ-leptons and missing transverse momentum is presented. The analysis uses 139 fb−1 of proton-proton collision data at p √s = 13TeV collected by the ATLAS experiment at the Large Hadron Collider between 2015 and 2018. No evidence of physics beyond the Standard Model is found. The results are interpreted in terms of a 2HDM+a model featuring two scalar Higgs doublets and a pseudoscalar singlet field. Exclusion limits on the parameters of the model in selected benchmark scenarios are derived at 95% confidence level. Model-independent limits are also set on the visible crosssection for processes beyond the Standard Model producing missing transverse momentum in association with a Higgs boson decaying into τ-leptons. 2024-04-25T08:04:39Z 2024-04-25T08:04:39Z 2023-09-26 info:eu-repo/semantics/article The ATLAS collaboration., Aad, G., Aakvaag, E. et al. Search for dark matter produced in association with a Higgs boson decaying to tau leptons at √s= 13 TeV with the ATLAS detector. J. High Energ. Phys. 2023, 189 (2023). https://doi.org/10.1007/JHEP09(2023)189 https://hdl.handle.net/10481/91142 10.1007/JHEP09(2023)189 eng http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Atribución 4.0 Internacional Springer Nature