Sorry to reply so lately. I was stuck with other priorities in MA5 development and your problem needed a detailed investigation. In fact, the '<' keyword has been designed to specify a mother particle in a particle decay. In your script, you use it to determine if a given particle is coming from the interaction between the initial parton. This case was not covered.
Nonetheless, I have extended the code in the view to have your code run properly. I have committed this patch in MA5_1.6beta branches.
Hi Daniel,
Sorry to reply so lately. I was stuck with other priorities in MA5 development and your problem needed a detailed investigation. In fact, the '<' keyword has been designed to specify a mother particle in a particle decay. In your script, you use it to determine if a given particle is coming from the interaction between the initial parton. This case was not covered.
Nonetheless, I have extended the code in the view to have your code run properly. I have committed this patch in MA5_1.6beta branches.
Cheers,
Eric from the MA5 team