O'Mega returns Not_Found on FeynRules generated Toy model

[Simon Braß]

O'Mega returns Not_Found on FeynRules generated Toy model, however, I'm not sure whether this is an inconsistency of the auto-generated UFO model, or something related to O'Mega's UFO parser, as the error message is very short.

The Sindarin and the UFO model are attached.

Version: WHIZARD 2.8.2 - Branch: master/d1b190f51

[Juergen Reuter (j.r.reuter)]

Your model contains an uncharged spin 1/2 particle, which is hence Majorana. Majorana particles will only be supported in WHIZARD v2.8.3.

[Simon Braß (sbrass)]

I've tried fixing that by introducing a negative charge to the fermion.
However, the error message persists on.

[Thorsten Ohl (thomega)]

That's a bug and it's not related to Majoranas. I'm working on it.

[Thorsten Ohl (thomega)]

It turns out that "GhostNumber" is an optional attribute of particles, but I treated it as mandatory. A quick workaround is to add "QuantumNumbers-> {GhostNumber -> 0}" to all your particles and ignore the FeynRules warning "Selfconjugated fields should not carry quantumnumbers."

I will make more attributes optional in 2.8.3.

... and provide better error messages;)

[Simon Braß (sbrass)]

Thanks, Thorsten! Your workaround works like a charm.

'Better error messages' sounds great, too!