High-Level Trigger path information HLT_HISinglePhoton20ForEndOfFill.
first seen online on run 256630 (/cdaq/physics/Run2015/25ns14e33/v4.2.3/HLT/V2)
last seen online on run 260627 (/cdaq/physics/Run2015/25ns14e33/v4.4.5/HLT/V1)
V1: (runs 256630 - 260627)
See also the full list of triggers for CMS 2015 open data: Trigger information for CMS 2015 open data
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