Storing pythia file in tree root

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This question was already asked in this forum. See:

Storing Pythia8 Events In A TTree

Hi, I’m using Pythia8 to generate some events and then I would like to use ROOT to analyze them. For this reason, I’m trying to get the Pythia8 plugin inside ROOT working. I looked at the pythia8.C tutorial, and I can not generate events without any problems. However I would also like to store them inside a TTree for future use. What is the recommended way to do this? I’ve looked at the pythiaExample.C tutorial, which does this for Pythia6. I thought that the core lines were: // Make a tree…