Search for non-resonant Higgs boson pair production in the bblνlνfinal state with the ATLAS detector in ppcollisions at √s=13TeV Aad, G. Aguilar Saavedra, Juan Antonio Atlas Collaboration A search for non-resonant Higgs boson pair production, as predicted by the Standard Model, is presented, where one of the Higgs bosons decays via the H→bbchannel and the other via one of the H→WW∗/ZZ∗/ττ channels. The analysis selection requires events to have at least two b-tagged jets and exactly two leptons (electrons or muons) with opposite electric charge in the final state. Candidate events consistent with Higgs boson pair production are selected using a multi-class neural network discriminant. The analysis uses 139 fb−1 of pp collision data recorded at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. An observed (expected) upper limit of 1.2 (0.9+0.4−0.3) pb is set on the non-resonant Higgs boson pair production cross-section at 95% confidence level, which is equivalent to 40 (29+14−9) times the value predicted in the Standard Model. 2020-02-11T09:09:19Z 2020-02-11T09:09:19Z 2019-12-13 info:eu-repo/semantics/article http://hdl.handle.net/10481/59561 10.1016/j.physletb.2019.135145 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España Elsevier BV