fcs:eic
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- | 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 | + | |
- | + | ||
- | * 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 | + | |
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- | + | ||
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- | 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 | + | |
- | <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:// | + | |
- | </ | + | |
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- | + | ||
- | + | ||
- | 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/eic.txt · Last modified: 2016/11/06 19:17 by asc