Light H+ searches in the Hadronic Mode with ATLAS

The channel in which a H+ is produced in ttbar events with both the tau (from the H+) and the W boson decaying hadronically has a relatively high cross section, making it a priori one of the most promising in searches for H+ lighter than the top quark. On the other hand the absence of leptons as well as the high hadronic activity in the event is a challenge, in particular for triggering purposes. The ATLAS simulation study for this channel is presented along with its expected discovery reach.