Discovery-HET Seminar: Ciaran Williams – University of Copenhagen

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Discovery-HET Seminar: Ciaran Williams

Speaker: Ciaran Williams (NBIA & Discovery Center)

Title: Bounding the Higgs width at the LHC


I will discuss the potential for the LHC to constrain the Higgs width.  
At the LHC direct measurement of the width is impossible for 
widths smaller than the detector resolution (of around 1 GeV). 
Therefore an alternate approach is employed in which the 
width is constrained from off-shell H=>ZZ events. I will 
present an overview of the method, including the analytic calculation 
of gg=>ZZ using D-dimensional unitarity. I will then discuss
the potential improvements on the limits if Matrix Element 
Methods are employed in the analysis.