Pad Trigger Data Quality for the New Small Wheel

Synopsis

The New Small Wheel is the latest upgrade to the ATLAS muon detection system. This upgrade is critical as the LHC progresses to higher luminosity in preparation for the High Luminosity LHC. The increase in collisions in Run II resulted in a large amount of fake muons being identified, and with a further increase in collisions for Run III this amount would increase substantially. This upgrade will drastically reduce the fake trigger rate by providing a trigger system in the inner muon system capable of fast and accurate decision making. This is achieved using two new technologies in the New Small Wheel: the MicroMegas and the small-thin gap chambers. The trigger system revolves around the Pad Trigger and the communication with the other elements of the New Small Wheel to provide muon trigger candidates. The Pad Trigger is an electronic board installed for each sector which has direct connections to electronics that collect location and time information for every hit. This board rapidly processes hit information to identify muon trigger candidates.

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