How to Check Trigger Details for pp2pp runs:

  1. Go to http://online.star.bnl.gov .

  2. Click on "Trigger Versioning".

  3. Click on the date range.

  4. Click on the exact date.

  5. Look for runs with "Configuration" == "pp2pp".

  6. Click on "Triggers..." to look into trigger details

  7. Under "Defined Triggers", the idx_trigger indicate the bits for "daqbits" (or "daqbits64" if > 32 bits of information are required) defined in online/RTS/src/EVP_READER/trgReader.h RTS/src/DAQ_TRG/daq_trg.h.

    In fact, in RTS/src/DAQ_READER/daqReader.h, there is this member function for the daqReader object: "getOfflineId(int bit)".   Say, in 2017, bit-3 (4th bit) of "daqbits" is RP_ET and if you call "getOfflineId(3)", you'd get the Trigger-ID "570907".

  8. Under "Trigger Definitions", one sees the bits for "tcubits" defined in online/RTS/src/EVP_READER/trgReader.h RTS/src/DAQ_TRG/daq_trg.h .


Last Updated on Nov. 11, 2021 by K. Yip.