Triggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 trigger

The CMS Level-1 trigger architecture underwent a full upgrade in 2016 in order to maintain and improve the trigger performance in the challenging experimental environment of Run II. It uses very high bandwidth processors with complex, programmable algorithms which increase the efficiency of identifying physics objects while reducing rates. It has successfully delivered very high performance at the high luminosity and associated pile-up condition.