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Search for pair production of Higgs bosons in the bb¯bb¯ final state using proton-proton collisions at sqrt(s)=13  TeV with the ATLAS detector
Journal article   Open access

Search for pair production of Higgs bosons in the bb¯bb¯ final state using proton-proton collisions at sqrt(s)=13  TeV with the ATLAS detector

Cigdem Issever, A. J Barr, K Becker, L Beresford, D Bortoletto, A. M Cooper-Sarkar, M Crispin Ortuzar, W. J Fawcett, J. A Frost, E. J Gallas, …
Physical Review D, Vol.94(5), 052002
09/02/2016
DOI: 10.1103/PhysRevD.94.052002
url
https://doi.org/10.1103/PhysRevD.94.052002View
Published (Version of record) Open Access

Abstract

A search for Higgs-boson pair production in the bb¯bb¯ final state is carried out with 3.2  fb−1 of proton-proton collision data collected at 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 bb¯bb¯ 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.
High Energy Physics Experiment Phenomenology

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