Open ghost opened 5 years ago
I'm not sure if you're planning on answering this one yourself, but here's some information either way that might help. I've only heard the 'MinBias' abbreviation used on LHCb rather than 'MiniBias', so I'll use that.
Each of {No,Min,Micro}Bias
exists to provide analysts with data that is as unbiased as possible, in the sense that the set of triggers feeding into the datasets have very few selection requirements, or none at all.
As always when talking about selections, you have to be careful what stage of the trigger you're talking about. Someone may be discussing using 'NoBias data' but only in the sense that it is unbiased out of L0, whereas another person may mean it to be unbiased out of HLT2.
Hopefully this answers the questions, but to be explicit:
*Bias
discussion, relating more to how data is partitioned, or 'streamed' in the jargon, from the trigger. In summary:
RAW
files (I don't think RAW.DST
exists) contain the raw data directly from the trigger. What events are in these files depends on the stream you're looking at. Events in which a NoBias trigger fired are sent to the NoBias stream. Most 'physics triggers' are sent to either of the Full or Turbo streams.FULL.DST
files contain the output of the Brunel processing of the raw data.Thank you: that is more or less what I wanted to know. I have tried to draft a pull request.
You should not close this until all is sorted out with an accepted pull request - at all not the case. Reopening.
@jordan-rothenheimer If you say something like closes #30
in your PR description, the issue automatically gets closed by GitHub when the PR is merged.
(Removed MiniBias from the list.)
The following list of terms should be defined:
Is NoBias a good source of minimum-bias data? Or, is that just MiniBias? How much minimum-bias data is typically collected per run/fill? How is MicroBias different from MiniBias? What should I think when I see FULL.DST or RAW.DST in the bookkeeping?