Add vasilisa section #175
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Add vasilisa section #175
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Can you add |
kjvbrt
reviewed
Nov 20, 2025
| - Use this setup if you want to run the latest compatible versions of the FCC software: | ||
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| **Event generation** | ||
| To generate events with Pythia8 + EvtGen, use the executable ```DelphesPythia8EvtGen_EDM4HEP_k4Interface```. Make sure your FCC software setup is actually working in correct enviroment. You can check this by running: |
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Why multiple backticks? One should be enough for an in-line term
| To generate events with Pythia8 + EvtGen, use the executable ```DelphesPythia8EvtGen_EDM4HEP_k4Interface```. Make sure your FCC software setup is actually working in correct enviroment. You can check this by running: | ||
| ```bash | ||
| source /cvmfs/fcc.cern.ch/sw/latest/setup.sh | ||
| which DelphesPythia8EvtGen_EDM4HEP_k4Interface |
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What is the expected output? How do I know that the executable is from the correct stack?
| The executable wrapper that connects Pythia8, EvtGen, and Delphes, and writes output in EDM4hep format. You can inspect its expected argument order by running: | ||
| ```bash | ||
| echo $KEY4HEP_STACK | ||
| DelphesPythia8EvtGen_EDM4HEP_k4Interface -h |
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Can you add closed admonition with the output?
| Here we download a custom EvtGen decay file `Bu2TauNuTAUHADNU.dec` to describe $B^{+} \;\rightarrow\; \tau^{+} \nu_{\tau} \;\rightarrow\; 3\pi$. | ||
| EvtGen uses a flexible text-based format to define particle decays, allowing users to override or extend the default decay tables. To do this safely — without altering the global definitions in `DECAY.DEC` — we use **aliases**, which act as local copies of particles. | ||
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| Example `.dec` file: |
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Here Iit might be beneficial to have an admonition as well.
| **EvtGen** is a decay generator specialized in the simulation of hadronic decays of heavy-flavour particles with accurate angular correlations and form-factor models. | ||
| **EvtGen** is interfaced to [**Pythia8**](https://github.com/HEP-FCC/k4Gen/blob/main/k4Gen/src/components/PythiaInterface.h#L88-L97) through **k4Gen**, | ||
| so that events generated by **Pythia** can be decayed by **EvtGen** before detector simulation. | ||
| **EvtGen** is a decay generator specialized in the simulation of hadronic decays of heavy-flavour particles with accurate angular correlations and form-factor models. **EvtGen** is interfaced to [**Pythia8**](https://github.com/HEP-FCC/k4Gen/blob/main/k4Gen/src/components/PythiaInterface.h#L88-L97) through **k4Gen**, so that events generated by **Pythia** can be decayed by **EvtGen** before detector simulation. |
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If there is a website for EvtGen, can it be linked?
added 2 commits
November 20, 2025 14:48
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@BrieucF @kjvbrt Can you please check EvtGen + Pythia tutorial. I have refined all comments from Hands-On tutorial.