Characterising trigger-level hadronic jets in 2015 data at ATLAS

The ATLAS experiment at the LHC uses a two-level trigger system to preferentially select events with a predefined topology of interest for future analysis. The efficient selection of events containing hadronic jets requires the charactistics of trigger-level jets and offline jets to be very similar. In this poster, the characteristics of the trigger-level and offline jet objects are compared and found to be in excellent agreement. This opens up the possibliity of analysing the ATLAS data using only the objects reconstructed in the ATLAS trigger, which would allow much higher output rates than is possible when recording the information from the full detector.