Abstract:We use on-shell amplitude methods to systematically analyze the possibility of extended supersymmetry for 4d Galileon models, expanding on previous $$ \mathcal{N} $$
N
= 1 results. Assuming spins ≤ 1, we prove that there exists no $$ \mathcal{N} $$
N
= 4 supersymmetric extension of 4d Galileons with a single vector multiplet. Thus the Galileons cannot be part of the effective action of a single flat maximally supersymmetric D3-brane, and tha… Show more
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