Difference between revisions of "Software"
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'''Reaction channel analysis''' | '''Reaction channel analysis''' | ||
*ReactionFilter plugin is used to find the events corresponding to a particular reaction to make Analysis Trees. (Beni) | *ReactionFilter plugin is used to find the events corresponding to a particular reaction to make Analysis Trees. (Beni) | ||
− | *Requests for analysis trees are bundled together | + | *Requests for analysis trees are collected via a [https://halldweb.jlab.org/analysis/SubmitReaction.html webpage], and launched bundled together on the JLab farm. Lists for already existing trees are kept [https://halldweb.jlab.org/wiki-private/index.php/Spring_2017_Analysis_Launch here]. |
Revision as of 12:59, 10 December 2021
This provides a very brief overview of the data to paper processing pipeline.
Raw data – halld_recon
- Raw data is taken in EVIO file format and processed using programs in halld_recon. (Mark)
- Run conditions (eg beam current, radiator) are stored in RCDB and the calibrations database is CCDB.
- hd_root is used with plugins for event reconstruction, monitoring, Calibrations and to make REST files (Mark)
- REST files are in HDDM format (physics quantities, no detector hit information). (Richard)
Simulated data - halld_sim
- Simulated data are in HDDM format. (Richard)
- Event generators generate simulated physics data (particle, momentum, track angle) (Simon & Malte)
- hdgeant4 models the measurements (detector hits) produced by those tracks (Richard)
- mcsmear models the detector resolution which makes the measurements less exact. (Richard)
- MCWrapper runs the above on demand. (Sean)
Reaction channel analysis
- ReactionFilter plugin is used to find the events corresponding to a particular reaction to make Analysis Trees. (Beni)
- Requests for analysis trees are collected via a webpage, and launched bundled together on the JLab farm. Lists for already existing trees are kept here.
Analysis Tree analysis
- DSelectors are used to apply filters to the data and generate histograms of invariant mass etc. (Beni)
- FSRoot is an alternative to DSelectors that uses flat trees.
- AmpTools is used for partial wave analysis (Malte)