GSLRD[p,n,nb]
denotes the perpendicular component in the lightcone decomposition of the slashed Dirac matrix along the vectors n
and nb
in dimensions. It corresponds to .
If one omits n
and nb
, the program will use default vectors specified via $FCDefaultLightconeVectorN
and $FCDefaultLightconeVectorNB
.
Overview, DiracGamma, GALPD, GALND, GALRD, GSLPD, GSLND.
[p, n, nb] GSLRD
StandardForm[GSLRD[p, n, nb] // FCI]
(*DiracGamma[LightConePerpendicularComponent[Momentum[p, D], Momentum[n, D], Momentum[nb, D]], D]*)
Notice that the properties of n
and nb
vectors have to be set by hand before doing the actual computation
[p, n, nb] . GSLPD[q, n, nb] // DiracSimplify GSLRD
[]
FCClearScalarProducts[n] = 0;
SPD[nb] = 0;
SPD[n, nb] = 2; SPD
[p, n, nb] . GSLPD[q, n, nb] // DiracSimplify GSLRD
[] FCClearScalarProducts