<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Search for the non-resonant Vector Boson Fusion production of the Higgs boson pairs decaying to $b\\bar{b}b\\bar{b}$ final state using the ATLAS detector"^^ . "Non-resonant Higgs boson pairs produced via Vector Boson Fusion (VBF) and decaying to $b\\bar{b}b\\bar{b}$ final state are searched for using 126 $\\text{fb}^{-1}$ of $\\sqrt{s} = 13$ TeV proton-proton collisions data collected by the ATLAS detector in Run 2. There is no evidence for the Standard Model production of Higgs boson pairs. The observed (expected) 95% CL exclusion limit on the Standard Model production cross-section is set at 132.3 (132.8) times the Standard Model cross-section prediction. The analysis strategy is optimised so that the previous limit set on the Standard Model $HH \\rightarrow b\\bar{b}b\\bar{b}$ VBF cross-section is improved by a factor of 6. Non Standard Model couplings are tested as well, leading to the observed $\\kappa_{2V}$ constrained interval of [0.09, 1.99]. The fully data-driven neural network QCD background estimation has a considerable impact on the improved result and is discussed in detail in this thesis.\r\nAdditionally, projection studies for the future experimental scenarios: the HL-LHC and the FCC-hh, are performed using a simplified approach with Monte Carlo generated signal and background samples. The study results in a 95% CL expected limit on the Standard Model cross-section reaching 248 times the Standard Model cross-section prediction for for the HL-LHC and 18 times the Standard Model cross-section prediction for the FCC scenario."^^ . "2023" . . . . . . . "Marta Maja"^^ . "Czuryło"^^ . "Marta Maja Czuryło"^^ . . . . . . "Search for the non-resonant Vector Boson Fusion production of the Higgs boson pairs decaying to $b\\bar{b}b\\bar{b}$ final state using the ATLAS detector (PDF)"^^ . . . "thesis_MartaCzurylo.pdf"^^ . . . "Search for the non-resonant Vector Boson Fusion production of the Higgs boson pairs decaying to $b\\bar{b}b\\bar{b}$ final state using the ATLAS detector (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Search for the non-resonant Vector Boson Fusion production of the Higgs boson pairs decaying to $b\\bar{b}b\\bar{b}$ final state using the ATLAS detector (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Search for the non-resonant Vector Boson Fusion production of the Higgs boson pairs decaying to $b\\bar{b}b\\bar{b}$ final state using the ATLAS detector (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Search for the non-resonant Vector Boson Fusion production of the Higgs boson pairs decaying to $b\\bar{b}b\\bar{b}$ final state using the ATLAS detector (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Search for the non-resonant Vector Boson Fusion production of the Higgs boson pairs decaying to $b\\bar{b}b\\bar{b}$ final state using the ATLAS detector (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #32906 \n\nSearch for the non-resonant Vector Boson Fusion production of the Higgs boson pairs decaying to $b\\bar{b}b\\bar{b}$ final state using the ATLAS detector\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .