Heather Gray

Evidence for ttH Production with the ATLAS experiment


The top quark Yukawa coupling can be probed directly by exploiting the unique experimental signature when the Higgs boson is produced in association with a pair of top quarks. 
This so-called ttH production could also be sensitive to new physics for example through higher dimensional operators. The ATLAS experiment has recently obtained 4.2 sigma evidence 
for ttH production. I will discuss these results and highlight some of the important experimental challenges.