Name: Monica Date: 05/06/17-05:22:32 AM Z


Hi! in usin Feyncalc 8.2

When I introduce an expression like this

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

to the instruction OneLoop, at the end Mathemathica change the order of the spinors

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

How Can I avoid this?