FeynCalc manual (development version)

$AL

$AL is the head for dummy indices which may be introduced by Amputate and Uncontract. By default it is unset, but may be set to anything.

See also

Overview, Amputate, Uncontract.

Examples

Uncontract[ScalarProduct[p, q], q, Pair -> All]

\overline{p}^{\text{\$AL}(\text{\$19})} \overline{q}^{\text{\$AL}(\text{\$19})}

$AL = \[Mu]; 
 
Uncontract[ScalarProduct[p, q], q, Pair -> All]

\overline{p}^{\mu (\text{\$20})} \overline{q}^{\mu (\text{\$20})}

$AL =.;