%0 Journal Article %T Search for dark matter in events with missing transverse momentum and a Higgs boson decaying into two photons in pp collisions at root s=13 TeV with the ATLAS detector %A ATLAS Collaboration (Aad, G. et al %A Aparisi Pozo, J. A. %A Bailey, A. J. %A Cabrera Urban, S. %A Cardillo, F. %A Castillo, F. L. %A Castillo Gimenez, V. %A Costa, M. J. %A Escobar, C. %A Estrada Pastor, O. %A Fiorini, L. %A Fullana Torregrosa, E. %A Fuster, J. %A Garcia, C. %A Garcia Navarro, J. E. %A Gonzalez de la Hoz, S. %A Gonzalvo Rodriguez, G. R. %A Guerrero Rojas, J. G. R. %A Higon-Rodriguez, E. %A Lacasta, C. %A Lozano Bahilo, J. J. %A Mamuzic, J. %A Marti-Garcia, S. %A Martinez Agullo, P. %A Miralles Lopez, M. %A Mitsou, V. A. %A Moreno Llacer, M. %A Navarro-Gonzalez, J. %A Poveda, J. %A Prades IbaƱez, A. %A Rodriguez Bosca, S. %A Ruiz-Martinez, A. %A Sabatini, P. %A Salt, J. %A Sayago Galvan, I. %A Soldevila, U. %A Sanchez, J. %A Torro Pastor, E. %A Valero, A. %A Valls Ferrer, J. A. %A Villaplana Perez, M. %A Vos, M. %J Journal of High Energy Physics %D 2021 %V 10 %N 10 %I Springer %@ 1029-8479 %G English %F ATLASCollaborationAad_etal2021 %O WOS:000703983100002 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4980), last updated on Fri, 15 Oct 2021 07:34:18 +0000 %X A search for dark-matter particles in events with large missing transverse momentum and a Higgs boson candidate decaying into two photons is reported. The search uses 139 fb(-1) of proton-proton collision data collected at root s = 13 TeV with the ATLAS detector at the CERN LHC between 2015 and 2018. No significant excess of events over the Standard Model predictions is observed. The results are interpreted by extracting limits on three simplified models that include either vector or pseudoscalar mediators and predict a final state with a pair of dark-matter candidates and a Higgs boson decaying into two photons. %K Hadron-Hadron scattering (experiments) %R 10.1007/JHEP10(2021)013 %U https://arxiv.org/abs/2104.13240 %U https://doi.org/10.1007/JHEP10(2021)013 %P 013-50pp