TY - JOUR AU - ATLAS Collaboration (Aad, G. et al AU - Aparisi Pozo, J. A. AU - Bailey, A. J. AU - Cabrera Urban, S. AU - Cardillo, F. AU - Castillo, F. L. AU - Castillo Gimenez, V. AU - Costa, M. J. AU - Escobar, C. AU - Estrada Pastor, O. AU - Ferrer, A. AU - Fiorini, L. AU - Fullana Torregrosa, E. AU - Fuster, J. AU - Garcia, C. AU - Garcia Navarro, J. E. AU - Gonzalez de la Hoz, S. AU - Gonzalvo Rodriguez, G. R. AU - Guerrero Rojas, J. G. R. AU - Higon-Rodriguez, E. AU - Lacasta, C. AU - Lozano Bahilo, J. J. AU - Madaffari, D. AU - Mamuzic, J. AU - Marti-Garcia, S. AU - Martinez Agullo, P. AU - Mitsou, V. A. AU - Moreno Llacer, M. AU - Poveda, J. AU - Prades Ibañez, A. AU - Rodriguez Bosca, S. AU - Ruiz-Martinez, A. AU - Sabatini, P. AU - Salt, J. AU - Santra, A. AU - Sayago Galvan, I. AU - Soldevila, U. AU - Sanchez, J. AU - Torro Pastor, E. AU - Valero, A. AU - Valls Ferrer, J. A. AU - Vos, M. PY - 2021 DA - 2021// TI - A search for the dimuon decay of the Standard Model Higgs boson with the ATLAS detector T2 - Phys. Lett. B JO - Physics Letters B SP - 135980 EP - 24pp VL - 812 PB - Elsevier AB - A search for the dimuon decay of the Standard Model (SM) Higgs boson is performed using data corresponding to an integrated luminosity of 139 fb(-1) collected with the ATLAS detector in Run 2 pp collisions at root s = 13 TeV at the Large Hadron Collider. The observed (expected) significance over the background-only hypothesis for a Higgs boson with a mass of 125.09 GeV is 2.0 sigma (1.7 sigma). The observed upper limit on the cross section times branching ratio for pp -> H -> μμis 2.2 times the SM prediction at 95% confidence level, while the expected limit on a H -> μμsignal assuming the absence (presence) of a SM signal is 1.1(2.0). The best-fit value of the signal strength parameter, defined as the ratio of the observed signal yield to the one expected in the SM, is μ= 1.2 +/- 0.6. SN - 0370-2693 UR - https://arxiv.org/abs/2007.07830 UR - https://doi.org/10.1016/j.physletb.2020.135980 DO - 10.1016/j.physletb.2020.135980 LA - English N1 - WOS:000608167600020 ID - ATLASCollaborationAad_etal2021 ER -