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Shedding New Light on the Higgs

September 1, 2015


Candidate Higgs decay to two tau leptons in the ATLAS detector at CERN.

Reduced coupling strength scale factors measured from combined ATLAS and CMS data for weak bosons and fermions plotted as a function of their mass. The data agree well with the Standard Model prediction. A significant deviation would be a potential indicator of New Physics.
Today, at the Large Hadron Collider Physics conference (LHCP2015), the ATLAS and CMS collaborations presented the most precise measurements yet of Higgs boson properties. By combining Run 1 data from both experiments, the new measurements paint a clear picture of how the Higgs boson is produced, decays, and interacts with other particles.

"These combined results are the product of many months of hard work by ATLAS and CMS collaborators within the LHC Higgs Combination Group," says ATLAS physics coordinator Andreas Hoecker. "The effort required a thorough classification of the numerous individual analyses from each experiment and their complex uncertainty sources. It also relied on deep theoretical groundwork that allowed ATLAS and CMS to confront the measurements with their Standard Model (SM) predictions."

"With every new analysis, our understanding of the Higgs boson and the Standard Model continues to grow," says ATLAS Deputy Spokesperson Robert McPherson. "As a result, these precise new measurements will be great tools in the search for 'New Physics', helping ATLAS look for possible deviations from SM predictions."

CERN Press Release: Click here

For more ATLAS results, read the ATLAS Physics Briefings.
For more about the LHC re-start (Run 2), including images, videos and articles, visit the ATLAS Run 2 Resources page.

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