Aaboud2019_Article_SearchForPairProductionOfHiggs.pdf (1.09 MB)
Search for pair production of Higgs bosons in the bb bb final state using proton-proton collisions at ps = 13 TeV with the ATLAS detector
Version 2 2023-06-12, 09:11
Version 1 2023-06-09, 18:42
journal contribution
posted on 2023-06-12, 09:11 authored by M Aaboud, B Abbott, G Aad, N L Abraham, Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, Batool Safarzadeh Samani, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, Kate ShawKate Shaw, Thomas StevensonThomas Stevenson, K Suruliz, The Atlas Collaboration, othersA search for Higgs boson pair production in the bbbb final state is carried out with up to 36.1 fb1 of LHC proton–proton collision data collected at ps = 13 TeV with the ATLAS detector in 2015 and 2016. Three benchmark signals are studied: a spin-2 graviton decaying into a Higgs boson pair, a scalar resonance decaying into a Higgs boson pair, and Standard Model non-resonant Higgs boson pair production. Two analyses are carried out, each implementing a particular technique for the event reconstruction that targets Higgs bosons reconstructed as pairs of jets or single boosted jets. The resonance mass range covered is 260–3000 GeV. The analyses are statistically combined and upper limits on the production cross section of Higgs boson pairs times branching ratio to bbbb are set in each model. No significant excess is observed; the largest deviation of data over prediction is found at a mass of 280 GeV, corresponding to 2.3 standard deviations globally. The observed 95% confidence level upper limit on the non-resonant production is 13 times the Standard Model prediction.
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Publication status
- Published
File Version
- Published version
Journal
Journal of High Energy PhysicsISSN
1126-6708Publisher
Institute of PhysicsExternal DOI
Issue
30Volume
2019Page range
1-49Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-08-22First Open Access (FOA) Date
2019-08-22First Compliant Deposit (FCD) Date
2019-08-21Usage metrics
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