First observation of the $\mathrm{t\bar{t}H}$ process at CMS
Kirill Skovpen (on behalf of the CMS Collaboration)
TL;DR
This paper reports the first observation of the top quark pair production associated with the Higgs boson at CMS, confirming the direct coupling between the Higgs and top quark with high significance.
Contribution
It provides the first direct measurement of the Higgs-top coupling through observation of the t-tbar-H process at CMS.
Findings
Observed significance of 5.2 standard deviations
First direct measurement of Higgs-top coupling
Confirms the Standard Model prediction
Abstract
The top quark and the Higgs boson play a special role in the fundamental interactions of the standard model. The observation of the top quark pair production in association with the Higgs boson establishes the first direct measurement of the tree-level coupling of the Higgs boson to the top quark. The analysis of the data collected by the CMS detector results in the overall observed significance of 5.2 standard deviations for this process.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions