GitLab service scheduled maintenance on Friday, March 21st 2025 as of 08h00 Geneva time for an estimated period of 1 hour. Further information under OTG0154918.
Adds a 1 kHz lumi line (in addition to the 30 kHz line), which contains a larger set of luminosity counters.
The second line requires lumi events with ODIN orbitNumber%30==1 - this ensures the larger LumiSummary banks are non-overlapping with the FSR events that get copied to the physics streams (which have orbitNumber%30==0).
The changes are structured to require as few algorithms as possible to be aware of the additional lumi line. CalcLumiSumSize is the only algorithm that explicitly interacts with the new line. This sets the offset to the summary for each event in the output buffer appropriately. The various sub-detector specific LumiCounters algorithms have been updated only to remove their dependence on a fixed-sized lumi summary. MakeLumiSummary has been updated to check that a counter's offset is within range for the current lumi summary before filling it.
The schema for the 1 kHz luminosity summary is an extended version of the 30 kHz version such that the offsets to counters present in the basic summary are not changed in the extended summary.
Currently the extended section of the lumi summary contains Plume and SciFi counters. The different-length banks are produced as expected in offline tests. Decoded values are internally consistent - i.e. plume average ADC is equal to the average of the individual ADC counters in the extended summary and 30kHz SciFi counters are equal to the relevant sums of extended counters.
To maintain compatibility with sequences that only use a single lumi line, the index of the 1 kHz line defaults to be equal to that of the 30 kHz line and, in this case, the extra counters are not added to the summary.