Name: Monica Salinas Date: 05/06/17-05:28:55 AM Z


Hi!
I´m using mathematica 8.2.
I have an expression like this

Spinor[1]…Spinor[2]*Spinor[3]*Spinor[4]

But when I introduce this in OneLoop instruction, at the end Mathematica changes the order of the spinors

Spinor[4]…Spinor[2]*Spinor[3]*Spinor[1]

How can I avoid this?