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Aaboud, M.; Aad, G.; Abbott, B.; Adomeit, Stefanie; Bender, M. (2016): Search for pair production of Higgs bosons in the bbbb final state using proton-proton collisions at √s=13 TeV with the ATLAS detector. In: Physical Review D, Vol. 94, No. 5, 52002
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Abstract

A search for Higgs-boson pair production in the bbbb final state is carried out with 3.2 fb(-1) of protonproton collision data collected at root s = 13 TeV with the ATLAS detector. The data are consistent with the estimated background and are used to set upper limits on the production cross section of Higgs-boson pairs times branching ratio to bbbb for both nonresonant and resonant production. In the case of resonant production of Kaluza-Klein gravitons within the Randall-Sundrum model, upper limits in the 24 to 91 fb range are obtained for masses between 600 and 3000 GeV, at the 95% confidence level. The production cross section times branching ratio for nonresonant Higgs-boson pairs is also constrained to be less than 1.22 pb, at the 95% confidence level.