Difference between revisions of "Software"

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'''Raw and reconstructed data – '''[https://github.com/JeffersonLab/halld_recon/wiki '''halld_recon''']
 
'''Raw and reconstructed data – '''[https://github.com/JeffersonLab/halld_recon/wiki '''halld_recon''']
 
* <span style="color:orange; font-size:2em">&#9679;</span> Raw data is saved by the [https://coda.jlab.org/drupal/ '''''DAQ system'''''] in the [https://www.jlab.org/evio '''''EVIO'''''] file format and processed using programs in [https://github.com/JeffersonLab/halld_recon/wiki '''''halld_recon''''']. More details about the '''''EVIO''''' file format can be found [https://coda.jlab.org/drupal/content/event-io-evio '''''here'''''] (Mark)
 
* <span style="color:orange; font-size:2em">&#9679;</span> Raw data is saved by the [https://coda.jlab.org/drupal/ '''''DAQ system'''''] in the [https://www.jlab.org/evio '''''EVIO'''''] file format and processed using programs in [https://github.com/JeffersonLab/halld_recon/wiki '''''halld_recon''''']. More details about the '''''EVIO''''' file format can be found [https://coda.jlab.org/drupal/content/event-io-evio '''''here'''''] (Mark)
* There are three main databases in HallD, '''RCDB''', '''CCDB''' and '''HOSS'''. A detailed description of these can be found [[HallD Databases|'''''HERE''''']].
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* <span style="color:orange; font-size:2em">&#9679;</span> There are three main databases in HallD, '''RCDB''', '''CCDB''' and '''HOSS'''. A detailed description of these can be found [[HallD Databases|'''''HERE''''']]. (Naomi, Sean, David L.)
 
* <span style="color:orange; font-size:2em">&#9679;</span> hd_root is used to analyse EVIO and REST data with plugins for monitoring, [[Calibrations|'''''Calibrations''''']], and event reconstruction (Sean [calibrations] - & Mark)
 
* <span style="color:orange; font-size:2em">&#9679;</span> hd_root is used to analyse EVIO and REST data with plugins for monitoring, [[Calibrations|'''''Calibrations''''']], and event reconstruction (Sean [calibrations] - & Mark)
 
* <span style="color:red; font-size:2em">&#9679;</span> REST files are an [https://halldweb.jlab.org/wiki/index.php/HDDM_Programmer%27s_Interface '''''HDDM format'''''] which stores reconstructed physics objects (no detector hit information) (Richard)
 
* <span style="color:red; font-size:2em">&#9679;</span> REST files are an [https://halldweb.jlab.org/wiki/index.php/HDDM_Programmer%27s_Interface '''''HDDM format'''''] which stores reconstructed physics objects (no detector hit information) (Richard)

Revision as of 09:43, 17 February 2022

This page provides a very brief overview of the GlueX-specific software used between recording data and publishing results. In time, it should become populated with links to more detailed documentation.


Raw and reconstructed data – halld_recon

  • Raw data is saved by the DAQ system in the EVIO file format and processed using programs in halld_recon. More details about the EVIO file format can be found here (Mark)
  • There are three main databases in HallD, RCDB, CCDB and HOSS. A detailed description of these can be found HERE. (Naomi, Sean, David L.)
  • hd_root is used to analyse EVIO and REST data with plugins for monitoring, Calibrations, and event reconstruction (Sean [calibrations] - & Mark)
  • REST files are an HDDM format which stores reconstructed physics objects (no detector hit information) (Richard)


Simulated data - halld_sim

  • Simulated data are in HDDM format. (Richard)
  • Detector Geometry: needed for real data and MC data reconstruction. The Detector Geometry is described in xml format and can be translated into other formats.
  • 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. The basic ideas and steps are outlined here(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. (Alex A)


Analysis Tree analysis

  • DSelectors are used to analyze "Analysis Trees" (see reaction filter above) to generate histograms of invariant mass etc. and generate highly reduced output trees for further analysis. Analyze an Analysis Tree(Beni)
  • FSRoot is an alternative to DSelectors that uses flat trees. (Ryan)
  • AmpTools (GitHub, User Guide) is used for partial wave analysis. GlueX specifics are documented here (PRIVATE) (Malte)