FeynCalc manual (development version)

PauliEta

PauliEta[I] represents a two-component Pauli spinor η\eta, while PauliEta[-I] stands for η\eta^{\dagger }.

See also

Overview, PauliXi.

Examples

PauliEta[I]

η\eta

PauliEta[-I]

η\eta ^{\dagger }

PauliEta[-I] . SIS[p] . PauliXi[I] 
 
% // ComplexConjugate

η.(σˉp).ξ\eta ^{\dagger }.\left(\bar{\sigma }\cdot \overline{p}\right).\xi

ξ.(σˉp).η\xi ^{\dagger }.\left(\bar{\sigma }\cdot \overline{p}\right).\eta