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High Energy Physics Seminar

Tuesday, March 26, 2019
4:00pm to 5:00pm
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Lauritsen 469
Higgs boson width at the LHC
Luigi Marchese, University of Oxford,

In the Standard Model the Higgs boson is a very narrow resonance and therefore measuring its width is challenging.

How can we constrain the Higgs boson total width at the LHC?

Presently, the best limits on the Higgs boson total width at the LHC are set using the off-shell Higgs production and decay to ZZ in the four-lepton or two-lepton-two-neutrino final state. 

A review of all measurements performed by the ATLAS collaboration with Run 1 data and Run 2 data collected in 2015 and 2016 is presented. 

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