Search for a massive resonance decaying to a pair of Higgs bosons in the four b quark final state in proton–proton collisions at s=13TeV

• Main Authors: Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
• Format: Article
• Language: English; English
• Published: Elsevier 2018
• Subjects: Q Science (General); QC Physics
• Online Access: http://irep.iium.edu.my/65212/1/65212_Search%20for%20a%20massive%20resonance%20decaying%20to%20a%20pair%20of%20Higgs_article.pdf; http://irep.iium.edu.my/65212/2/65212_Search%20for%20a%20massive%20resonance%20decaying%20to%20a%20pair%20of%20Higgs_scopus.pdf; http://irep.iium.edu.my/65212/; https://reader.elsevier.com/reader/sd/44BDCD98320593627FB69FDAD7A6CFAF42B11CD4671356B27145313E1D1E82BAB6C1012AB7E103109EC1A742A50D9C1D

A search for a massive resonance decaying into a pair of standard model Higgs bosons, in a final state consisting of two b quark–antiquark pairs, is performed. A data sample of proton–proton collisions at a centre-of-mass energy of 13 TeV is used, collected by the CMS experiment at the CERN LHC in 2016, and corresponding to an integrated luminosity of 35.9 fb−1. The Higgs bosons are highly Lorentzboosted and are each reconstructed as a single large-area jet. The signal is characterized by a peak in the dijet invariant mass distribution, above a background from the standard model multijet production. The observations are consistent with the background expectations, and are interpreted as upper limits on the products of the s-channel production cross sections and branching fractions of narrow bulk gravitons and radions in warped extra-dimensional models. The limits range from 126 to 1.4 fb at 95% confidence level for resonances with masses between 750 and 3000 GeV, and are the most stringent to date, over the explored mass range.