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Search for Higgs boson pair production in the γ γ b b ‾ final state in pp collisions at √ s = 13 TeV
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1-s2.0-S037026931830827X-main.pdf
Description
Published version
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1.86 MB
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Adobe PDF
Checksum (MD5)
54f8979ca29c8fe37afc3951f1128cf2
Publisher
Elsevier BV
Version
Final published version
Abstract
© 2018 The Author(s) A search is presented for the production of a pair of Higgs bosons, where one decays into two photons and the other one into a bottom quark–antiquark pair. The analysis is performed using proton–proton collision data at s=13TeV recorded in 2016 by the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9fb−1. The results are in agreement with standard model (SM) predictions. In a search for resonant production, upper limits are set on the cross section for new spin-0 or spin-2 particles. For the SM-like nonresonant production hypothesis, the data exclude a product of cross section and branching fraction larger than 2.0fb at 95% confidence level (CL), corresponding to about 24 times the SM prediction. Values of the effective Higgs boson self-coupling κλ are constrained to be within the range −11<κλ<17 at 95% CL, assuming all other Higgs boson couplings are at their SM value. The constraints on κλ are the most restrictive to date.
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Creative Commons Attribution 4.0 International license
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DOI of Published Version
10.1016/J.PHYSLETB.2018.10.056
