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Color flow information #8

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dirkzerwas opened this issue Mar 25, 2024 · 1 comment

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dirkzerwas commented Mar 25, 2024

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

dirkzerwas added a commit that referenced this issue


          #8 implementation of color flow in WriterEDM4HEP

db8fdac

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dirkzerwas commented Apr 15, 2024

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.

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