A search for resonant Higgs boson pair production in the bb¯bb¯ final state is presented. The analysis uses 126 fb-1-139 fb-1 of pp collision data at s=13 TeV collected with the ATLAS detector at the Large Hadron Collider. The analysis is divided into two channels, targeting Higgs boson decays which are reconstructed as pairs of small-radius jets or as individual large-radius jets. Spin-0 and spin-2 benchmark signal models are considered, both of which correspond to resonant HH production via gluon-gluon fusion. The data are consistent with Standard Model predictions. Upper limits are set on the production cross section times branching ratio to Higgs boson pairs of a new resonance in the mass range from 251 GeV to 5 TeV.

Aad, G., Abbott, B., Abbott, D. ., Abed Abud, A., Abeling, K., Abhayasinghe, D. ., et al. (2022). Search for resonant pair production of Higgs bosons in the b b ¯ b b ¯ final state using pp collisions at s =13 TeV with the ATLAS detector. PHYSICAL REVIEW D, 105(9) [10.1103/PhysRevD.105.092002].

Search for resonant pair production of Higgs bosons in the b b ¯ b b ¯ final state using pp collisions at s =13 TeV with the ATLAS detector

I. Bashta;V. D'Amico;B. Di Micco;R. Di Nardo;D. Orestano;F. Petrucci;G. Salamanna;