By Binetruy, Girardi, Grimm.
This record presents a pedagogical creation to the outline of the final Poincare supergravity/matter/Yang-Mills couplings utilizing equipment of Kahler superspace geometry. At a extra complex point this process is generalized to incorporate tensor box and Chern-Simons couplings in supersymmetry and supergravity, correct within the context of weakly and strongly coupled string theories.
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Additional resources for Supergravity couplings: a geometric formulation
3. Superxeld actions and equations of motion Invariant actions in superspace supergravity are obtained upon integrating superspace densities over the commuting and anticommuting directions of superspace. Densities, in this case, are constructed with the help of E, the superdeterminant of E . As we have already alluded to above, + the supergravity action in standard superspace geometry is just the volume of superspace. In our present situation where both supergravity and matter occur together in a generalized superspace geometry, the volume element corresponding to this superspace geometry yields the complete kinetic actions for the supergravity/matter system.
G , ?? . G #32RRR , ? 17) Plrep=1020=EM=VVC P. Bine& truy et al. @ is the curvature scalar super"eld. @ of the supersymmetric component "eld action. DM RR"4iD G? 18) ? 16), it has an intriguing resemblance with the 3-form constraint in superspace } cf. 2). 19) where E stands for d d M E, and E denotes the superdeterminant of E . eR, together with all the other terms necessary for the supersymmetric completion, with the usual canonical normalization. 2. 3 Ee\ ) ( (M . K( , M )/3) can be absorbed into E; however this will be possible only if there are symmetries which allow such a modi"cation, so let us analyze the situation in that respect.
A@ 2 A @ 2 2 ? 12) As for ¹ ? and ¹ , they will be interpreted later on as the covariant Rarita}Schwinger "eld A@ A@? and = Q called Weyl tensor super"elds, strength super"elds. They involve the super"elds = " " A@? A@? because they occur in the decomposition of these Rarita}Schwinger super"elds in very much the same way as the usual Weyl tensor occurs in the decomposition of the covariant curvature tensor. The auxiliary component "elds mentioned above appear as lowest components in the basic super"elds R, RR and G such that ?