Search for non-resonant Higgs boson pair production in the 2b+2ℓ+ETmiss final state in pp collisions at s = 13 TeV with the ATLAS detector

A search for non-resonant Higgs boson pair (HH) production is presented, in which one of the Higgs bosons decays to a b-quark pair (b (b) over bar) and the other decays to WW*, ZZ(*), or tau(+)tau(-), with in each case a final state with l(+)l(-)+ neutrin