spinor-tensor

[Hudson Vinícius de Almeida Silva]

Dear colleagues,

 I am a master's student and a beginner in Xact. Using the package Xfields, I could work with fermions but Now I am interested in working with spinor-tensors. So, is it possible to work with spinor-tensor in Xact, that is, spinorial objects with Lorentz indices?

Best regards,
Hudson.

[Markus Fröb]

Dear Hudson,

yes, that's possible. Just add the corresponding indices when you define the spinor, for example DefOddSpinor[psi[-alpha, -A], M].

Best, Markus