Search for the $HH \rightarrow b \bar{b} b \bar{b}$ process via vector-boson fusion production using proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
2020.
The collaboration

Abstract (data abstract)
CERN-ATLAS. Searches for HH->bbbb process via vector boson fusion production using proton-proton collisions at sqrt(s)=13 TeV with the ATLAS detector

Version 3 modifications: Bug fix in the theory curve of table 6.