Analysis of Jet Trigger Saturation Issues During MWGR with Muon Triggers and HF Identity

Jan 06, 2026

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This document presents an analysis of the jet trigger saturation observed during the MWGR sessions from August 13-14, focusing on the use of 0.25 LSB Physics LUTs and muon triggers. It discusses the problematic behavior of regional sums and jets, where saturation of jet rates rendered effective triggering impossible. Initially, high-frequency components were suspected to contribute to this saturation, particularly noticeable spikes around Rank 3, leading to further investigation and masking of HF. Despite improvements, saturation persisted, suggesting deeper issues that need to be addressed.

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Analysis of Jet Trigger Saturation Issues During MWGR with Muon Triggers and HF Identity

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MWGR 13-14 Aug • Runs taken with 0.25 LSB Physics LUTs • HF Identity • EM with muon triggers Pretty good!
MWGR: Regional Sums/Jets • Jet Rates saturated at GT – no possible to take Jet Trigger • First thought to blame HF:
MWGR: Regional Sums/Jets • Large spike at about Rank 3: • Thought this could be part of problem if it is going to HF jets then 9x3 = Rank 27
MWGR: Regional Sums today • So we masked HF, Better, but Jet triggers still saturated Oops! cable again? Lots of spikes!