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Supersymmetric Soft Theorems
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Supersymmetric Soft Theorems
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We show that in supersymmetric theories, knowing the soft theorem for a single particle in a supermultiplet allows one to immediately determine soft theorems for the remainder of the supermultiplet. While soft theorems in supersymmetric theories have a rich history, they have only been chronicled for specific examples due to the fact that they are usually derived with technical Feynman diagrammatics or amplitudes methods. By contrast, we show that one can compute soft theorems non-perturbatively for entire supermultiplets in one line of algebra. This formalism is directly applicable to the most general supersymmetric theory: one with an arbitrary matter content, number of supercharges, and spacetime dimension. We give many explicit examples illustrating the scope and dexterity of this framework.
Forward citations
Cited by 2 Pith papers
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Multi-Particle Contributions to the Celestial Algebra in the ${\cal N}=8$ Supergravity
Multi-particle OPEs of single-particle celestial operators with two-particle operators in N=8 supergravity yield ninety-five (anti)commutators of the soft current algebra plus amplitude relations.
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Subleading soft radiation during scattering of dressed states in QED
With subleading-corrected Faddeev-Kulish dressing, tree-level QED bremsstrahlung below the dressing scale vanishes, and elastic dressed amplitudes equal the infrared-finite part of Fock amplitudes.
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