|Message: Re: Alpha particle interaction with beryllium crashes||Not Logged In (login)|
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This exception clearly says that hadronic physics of alpha incomplete - no model defined. If you are using custom Physics List then you need define alpha inelastic models. If the bug happens with reference Physics List, please, submit bug report. To do extra check run alpha beam with the same energy on the same target using $G4INSTALL/examples/extended/Hadr00 or Hadr01. For these examples Physics List can be defined via PHYSLIST environment variable.