madgraph5 / madgraph4gpu

GPU development for the Madgraph5_aMC@NLO event generator software package
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Coupling ordering issue? #862

Open valassi opened 1 month ago

valassi commented 1 month ago

Followup from today's discussion. While debugging #826 Olivier observed some coupling ordering issues https://github.com/madgraph5/madgraph4gpu/issues/826#issuecomment-2139277161

image

This might be the root cause of the zero cross section issue #826 (or maybe not)

Note: in any case this is unrelated to channel-iconfig mapping errors discussed in #826 and #852 and probably responsible for #845 and #856