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Experimental Particle and Astro-Particle Physics Seminar
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Europe/Zurich
Description
Abstract:
Discovered by the ATLAS and CMS experiments in 2012, nearly five decates after its prediction, the Higgs boson is a cornerstone of the Standard Model of particle physics.
The decay of the Higgs boson into two Z bosons and subsequently four leptons provides one of the cleanest environments at the LHC for studying its properties.
Known as the "golden channel" due to its distinctive, fully reconstructible final state, it played a fundamental role in the Higgs boson discovery.
This talk reviews the CMS Collaboration's studies of the Higgs boson through the golden channel, following its evolution from a statistically limited discovery channel to a powerful tool for precision measurements in the Higgs sector.
It highlights the key results and the advances that have made this transition possible over the last decade.
The talk concludes with a discussion of the golden channel's legacy and its prospects in the next phases of the LHC Higgs physics research programme.