ATLAS tackles a new double-Higgs frontier - ATLAS Experiment at CERN

CERN ATLAS experiment is aggressively accelerating its pursuit of the elusive double-Higgs boson production, a critical frontier poised to validate or shatter the Standard Model of particle physics. With High-Luminosity LHC (HL-LHC) data just years away, physicists are intensely scrutinizing existing Run 3 datasets, perfecting analysis techniques to directly measure the Higgs boson self-coupling—a fundamental interaction that could reveal the universe's deepest secrets. This is not merely an incremental step; it is a direct probe into the fabric of electroweak symmetry breaking. The stakes couldn't be higher. Direct observation of two Higgs boson simultaneously is an exceptionally rare event, predicted to occur only once in every trillion proton-proton collisions, making it the "holy grail" for unlocking new physics. Current indirect constraints from Run 3 data analysis by ATLAS and its rival CMS experiment already hint at the complexity, but a direct measurement of the Higgs self-coupling constant (lambda) is paramount. Deviations from the Standard Model predicted value would necessitate a radical rethinking of how mass originates and potentially unveil new fundamental forces or particles. As the HL-LHC prepares for its anticipated operations in 2028-2029, the ATLAS collaboration is fast-tracking advanced machine learning algorithms and detector upgrades to maximize its discovery potential. The coming decade of HL-LHC data collection is earmarked to provide the definitive answer on Higgs self-coupling, potentially establishing the existence of physics beyond the Standard Model or solidifying our current understanding. The world of particle physics is on the cusp of an unprecedented clarification of the universe's fundamental architecture.