Question

Why/When can the gauge superfield and/or chiral superfield kinetic term in $(2,2)$ SUSY be ignored?

Answer 1

But unlike in the review as linked to earlier, Witten's argument crucially needs the kinetic terms of the scalar chiral superfields (..from where the F2F2 and the Yukawa terms come..). And Witten's argument also crucially needs the gauge kinetic term (from there the D2D2 terms come..) Then why is he trying to justify the e↦∞e↦∞ limit? Like he comments towards the end of Page 60, ``..the effects of finite e, are believed to be “irrelevant” in the technical sense of the renormalization group.."

Answer 2

Explanation:

In theoretical physics, there are many theories with supersymmetry (SUSY) which also have internal gauge symmetries. Supersymmetric gauge theory generalizes this notion.