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The first chip identifies the source of the statement or construction; the second identifies the source of its local proof or verification.
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action as a massless adjoint-hypermultiplet specialization
A conditional equality of the N=1 superspace action terms and on-shell field content for the N=4 SU(2) model and the massless-adjoint-hyper specialization of the adopted N=2 model; it does not prove sixteen-supercharge invariance.
Example
Set the hypermultiplet representation to on , use and the induced dual Hermitian form, and set its mass to . The map is an equivariant isometry from the adjoint representation to its dual, so it identifies with an adjoint field. If and are the canonically normalized chiral fields, define connection-normalized adjoint chiral fields and ; let be the connection-normalized vector chiral field. Then the hypermultiplet kinetic terms and cubic superpotential become exactly the two additional adjoint-chiral terms in the adopted action, and the on-shell component counts agree: one vector, three complex adjoint scalars, and four adjoint Weyl fermions. The calculation does not prove the supersymmetry variation.
Example references
Facts & Assumptions
Given: The action with one hypermultiplet, the action, and the stated connection/canonical field rescaling.
Four-dimensional SU(2) vector and hypermultiplet model: the hyper kinetic terms are canonical and its superpotential is .
Four-dimensional SU(2) vector and hypermultiplet model: the vector action has gauge and adjoint-chiral terms with coefficient .
Four-dimensional SU(2) vector and hypermultiplet model: for , is an equivariant isometric identification of the adjoint with its dual, using and the induced dual Hermitian form.
Four-dimensional SU(2) vector and hypermultiplet model: is the complex-bilinear extension of .
Four-dimensional SU(2) super-Yang-Mills model: the connection-normalized action has coefficient and cubic term .
Four-dimensional SU(2) vector and hypermultiplet model: the connection-normalized vector multiplet has one complex adjoint scalar and two adjoint Weyl fermions.
Four-dimensional SU(2) vector and hypermultiplet model: each chiral hypermultiplet field has one complex scalar and one Weyl fermion.
Four-dimensional SU(2) super-Yang-Mills model: on shell, the content is one gauge connection, six real adjoint scalars, and four adjoint Weyl fermions.
Verification
Given: [A1]–[A9], , , and .
The map intertwines the adjoint and dual actions, since for every ; in the -orthonormal real basis , it preserves the Hermitian form because both forms have coordinate expression . Differentiating the group intertwining identity and complex-linearly extending gives intertwining for the represented complexified Lie algebra; the matrix exponential power series then gives the same identity for the superfield exponentials in the D-terms. Substituting and into the two hypermultiplet D-terms in [A1] therefore gives times the D-terms of and in [A6]. The vector term already equals the vector and terms by [A2] and [A6].
By [A3], under the invariant-form identification of the dual adjoint with the adjoint, .
By [A4]–[A5], on the complexified adjoint. Cyclicity gives and . Therefore .
The cubic term in [A1], after the substitution from [given] and equality in step 2.1, is the cubic term in [A6]; the mass term vanishes because .
By [A3], [A7], and [A8], the vector and adjoint hyper together have one gauge connection, three complex adjoint scalars, and four adjoint Weyl fermions. The three complex scalars are six real scalars, so these counts equal the on-shell content in [A9].