This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
fcs:eic [2016/03/21 20:19] asc removed |
fcs:eic [2016/11/06 19:14] asc |
||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== | + | ====== |
- | This wiki explains how to view electron-proton collision events. To analyse events for such studies, install [[http:// | ||
- | |||
- | <code bash> | ||
- | wget http:// | ||
- | tar -zvxf jas4pp.tgz | ||
- | cd jas4pp | ||
- | source ./setup.sh # takes 5 sec for first-time optimization | ||
- | </ | ||
- | |||
- | The last command optimizes Java packages for the Python language. | ||
- | Now you are ready to run over any file with truth-level and datector-simulation files, such as LCIO and ProMC. This program allows you: | ||
- | |||
- | * Downloading and searching HepSim data | ||
- | * Processing ProMC files from HepSim | ||
- | * Running over SLCIO files with Geant4 simulated / reconstructed events. | ||
- | * Data analysis (jets, physics vectors, histogram packages) | ||
- | * Visualisation of reconstructed events using Wired4 display | ||
- | |||
- | |||
- | |||
- | We will use e-p events shown in [[http:// | ||
- | The full simulation files are located under the tag " | ||
- | |||
- | ====== Visualizing events with Wired ====== | ||
- | |||
- | Then copy the detector geometry file to the local directory where the file " | ||
- | <code bash> | ||
- | wget http:// | ||
- | </ | ||
- | This creates a directory " | ||
- | in [[http:// | ||
- | |||
- | Now we can visualize the detector as **[File]-[Open data source]-[HepRep]** XML and select file " | ||
- | This is how to do this using the command line: | ||
- | |||
- | <code bash> | ||
- | jas4pp sidloi3/ | ||
- | </ | ||
- | Now you should see the detector layout. | ||
- | |||
- | Next, we will read the simulated events: Open any *.slcio file you copied from HepSim using the menu | ||
- | **[File]-[Open data source]-[LCIO]** | ||
- | For e-p events, use this LCIO file from [[http:// | ||
- | |||
- | <code bash> | ||
- | wget http:// | ||
- | </ | ||
- | |||
- | |||
- | |||
- | Then click a small button [Go] (top menu bar). It will process | ||
- | | ||
- | do this **[File]-[New]-[LCSim Event browser]** | ||
- | |||
- | ===== Event display ===== | ||
- | |||
- | Here are images of ep collision with a scattered electron identified using the PFA. | ||
- | The images were done using DIS ep samples [[http:// | ||
- | Reconstructed electron energy from PFA: E=16.92 GeV | ||
- | “EVGEN” energy: | ||
- | |||
- | {{: | ||
- | |||
- | {{: | ||
- | |||
- | |||
- | ====== Now to analyse full simulations | ||
- | |||
- | |||
- | Please read [[https:// | ||
- | |||
- | --- // | ||
+ | * **[[fcs: |