Soft gluon resummation at fixed invariant mass for associated   $t\bar{t}H$ production at the LHC
  In the following we present our results on resummation of invariant mass threshold corrections for the $2 \to 3$ type hadronic production processes in the Mellin moment space formalism. This method is applied to the associated Higgs boson production process $pp \to t \bar{t} H$ at the LHC. The results for the total cross section, the differential distribution with respect to the invariant mass and their uncertainties are presented. 
Anna Kulesza, Leszek Motyka, Tomasz Stebel, Vincent Theeuwes
hep-ph