MadGraph5_aMC@NLO

Helicity based event generation

Asked by ouseph cj

Dear Madgraph expert,

Is it possible to generate events by specifying the helicity of the incoming and outgoing particle,
For example,
is it possible to generate the following event using madgraph,

generate uL vl > uL vl

uL=u quark left-handed

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Olivier Mattelaer
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Best Olivier Mattelaer (olivier-mattelaer) said : 		#1

Olivier Mattelaer suggests this article as an answer to your question: (please check also 1912.01725 for more details)
FAQ #2243: “How to generate polarized particles at LO”.

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ouseph cj (ouseph444) said : 		#2

Thanks Olivier Mattelaer, that solved my question.