FeynCalc manual (development version)

SpinorVBar

SpinorVBar[p, m] denotes a vˉ(p,m)\bar{v}(p,m)-spinor that depends on the 44-dimensional momentum pp.

See also

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

Examples

SpinorVBar[p, m]

vˉ(p,m)\bar{v}(p,m)

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

(*Spinor[-Momentum[p], m, 1]*)
SpinorVBar[p]

vˉ(p)\bar{v}(p)

SpinorVBar[p] // FCI // StandardForm

(*Spinor[-Momentum[p], 0, 1]*)
SpinorVBar[p] . GS[p] 
 
DiracEquation[%]

vˉ(p).(γˉp)\bar{v}(p).\left(\bar{\gamma }\cdot \overline{p}\right)

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