Kiran Ostrolenk is a PhD student working on NLO Matching within Herwig.

Kiran has also currently implemented helicity recycling in MadGraph. This means making sure that an external spinor or internal propagator is only calculated once at a given helicity. This is important when summing an amplitude over all possible helicities. This has resulted in a 50% speed increase for complex processes such as gg->ttbargg and pp->W+W-jj.