FeynCalc manual (development version)

SpinorUBarD

SpinorUBarD[p, m] denotes a uˉ(p,m)\bar{u}(p,m)-spinor that depends on the DD-dimensional momentum pp.

See also

Overview, Spinor, SpinorUBar, SpinorU, SpinorV, SpinorVBar, SpinorUD, SpinorVD, SpinorVBarD.

Examples

SpinorUBarD[p, m]

uˉ(p,m)\bar{u}(p,m)

SpinorUBarD[p, m] // FCI // StandardForm

(*Spinor[Momentum[p, D], m, 1]*)
SpinorUBarD[p]

uˉ(p)\bar{u}(p)

SpinorUBarD[p] // FCI // StandardForm

(*Spinor[Momentum[p, D], 0, 1]*)
SpinorUBarD[p] . GSD[p] 
 
DiracEquation[%]

uˉ(p).(γp)\bar{u}(p).(\gamma \cdot p)

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