Fayet–Iliopoulos term
= Fayet–Iliopoulos term
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{title2=$\xi D$}
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A <Fayet–Iliopoulos term> is a gauge-invariant term linear in the auxiliary $D$ field of an Abelian <vector multiplet>. Supersymmetry is broken only if no charged-scalar configuration can make the shifted D-term vanish simultaneously with every F-term.