Stefano Tognini

Add RootPrimaryGenerator sampler to celer-sim

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This PR is a follow up on issue #1207 and adds the capability to sample primaries from an existing ROOT file with offloaded primaries generated by RootEventWriter Main additions: -...

The ROOT I/O system in the `celer-g4` integration app is currently fully managed by a single class (`RootIO`) that manages all the data, all the ROOT files (for each thread),...

Add muon-catalyzed fusion physics

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# Physical processes ## Necessary for a proof-of-principle - Muonic atom capture (G4/NK) - Formation of $d\_\mu$ and $t\_\mu$ - Muonic molecule formation (G4/NK) - Formation of $(dd)\_\mu$ , $(dt)\_\mu$...

Add muon-catalyzed fusion inp:: skeleton and basic import

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This PR adds the skeleton for the input structures needed to load muon-catalyzed fusion into the code: - Add `MucfPhysics` option to `input::Problem::Physics` - Add option to toggle on/off muCF...

Unify and simplify importing of particles/processes to offload

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# Issue The existing `GeantImporter` uses a small set of `GeantImportDataSelection::Flags` for importing particles and physics. This leads to inconsistencies between `SetupOptions` / `FrameworkInput` and the actually imported data: we...