FVLND[p,mu,n,nb]
denotes the positive component in the lightcone decomposition of the Lorentz vector 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, Pair, FVLPD, FVLRD, SPLPD, SPLND, SPLRD, MTLPD, MTLND, MTLRD.
[p, \[Mu], n, nb] FVLND
StandardForm[FVLND[p, \[Mu], n, nb] // FCI]
Notice that the properties of n
and nb
vectors have to be set by hand before doing the actual computation
[p, \[Mu], n, nb] FVLND[q, \[Mu], n, nb] // Contract FVLPD
[p, \[Mu], n, nb] FVLPD[q, \[Mu], n, nb] // Contract FVLPD
[]
FCClearScalarProducts[n] = 0;
SPD[nb] = 0;
SPD[n, nb] = 2; SPD
[p, \[Mu], n, nb] FVLND[q, \[Mu], n, nb] // Contract FVLPD
[p, \[Mu], n, nb] FVLPD[q, \[Mu], n, nb] // Contract FVLPD
[] FCClearScalarProducts