Color flow information - Githubissues

key4hep / k4GeneratorsConfig

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Open dirkzerwas opened 3 months ago

dirkzerwas commented 3 months ago

The color flow information is not yet transferred to EDM4HEP. HepMC3: stored in attribute flows as VectorInt EDM4HEP expects a 2D int vector

dirkzerwas commented 2 months ago

Whizard seems to code the flow as:

flow1, flow2 (2x IntAttribute)
HepMC3 specifies: flows as VectorIntAttribute) According to https://arxiv.org/pdf/1912.08005.pdf Section A2 HepMC switched to the VectorInt at v3.2.0. KEY4HEP is at HepMC3.2.7, need to check with Whizard.