**Next message:**Rolf Mertig: "Re: Antisymmetric tensor contracted w 4vectors"**Previous message:**TC: "Re: Antisymmetric tensor contracted w 4vectors"**Maybe in reply to:**TC: "Antisymmetric tensor contracted w 4vectors"**Next in thread:**Rolf Mertig: "Re: Antisymmetric tensor contracted w 4vectors"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Mail actions:**[ respond to this message ] [ mail a new topic ]

Okay so now I'm having the opposite problem, its not throwing out symmetric terms. For example:

In: FV[p, LorentzIndex[a]] FV[p, LorentzIndex[b]] Eps[a, b]

Out: p^a p^b \[Epsilon]^(a b)

In: Contract[%]

Out: p^a p^b \[Epsilon]^(a b)

In: Simplify[%]

Out: p^a p^b \[Epsilon]^(a b)

In: Calc[%]

Out: p^a p^b \[Epsilon]^(a b)

And in my actual calculation:

In: tr1=Calc[Contract[Tr[GS[p].GA[\[Mu]].(x2*GS[p]+GS[q]).GA[\[Beta]].(x*GS[p]+GS[q]).GA[\[Alpha]].(x1*GS[p]+GS[q]).GA[\[Nu]]]*LC[\[Alpha],\[Beta]]]/8]

Out: -((LeviCivita(\[Alpha], \[Beta], Dimension -> 4) g^(\[Alpha] \[Nu])

g^(\[Beta] \[Mu]) Q^4)/(4 xb)) + ... -((LeviCivita(\[Alpha], \[Beta], Dimension -> 4) g^(\[Alpha] \[Beta])

g^(\[Mu] \[Nu]) Q^4)/(4 xb)) + ...

Where the second term is zero and ...'s represent the numerous terms I left out

I feel I'm missing some basic thing here that's holding me back seeing as I've had this work properly in the past in different situations.

**Next message:**Rolf Mertig: "Re: Antisymmetric tensor contracted w 4vectors"**Previous message:**TC: "Re: Antisymmetric tensor contracted w 4vectors"**Maybe in reply to:**TC: "Antisymmetric tensor contracted w 4vectors"**Next in thread:**Rolf Mertig: "Re: Antisymmetric tensor contracted w 4vectors"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Mail actions:**[ respond to this message ] [ mail a new topic ]

*
This archive was generated by hypermail 2b29
: 03/20/18-06:00:02 PM Z CET
*