Speaker
Description
The Higgs Boson is expected to decay to bb approximately 58% of the time. Despite the large branching fraction, due to the large background from Standard Model events with b-jets, measuring this decay has been less precise than other, less frequent, decays. Measuring H(bb) in the vector boson fusion production mode has historically been insensitive, but developments in the background estimates and discrimination, as well as improvements in the signal extraction techniques, have resulted in an observed (expected) significance of 2.6 (2.8) standard deviations from the background-only hypothesis. This analysis uses a dataset with an integrated luminosity of 126 $fb^{-1}$, collected in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector at the Large Hadron Collider (LHC) during LHC Run 2 and considers only fully-hadronic final states. This talk will focus on the background estimation and signal extraction techniques that are unique to this analysis, as well as the results.
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