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تسجيل مستخدم جديدProgress on cubic interactions of arbitrary superspin supermultiplets via gauge invariant supercurrents
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We consider cubic interactions of the form $s-Y-Y$ between a massless integer superspin $s$ supermultiplet and two massless arbitrary integer or half integer superspin $Y$ supermultiplets. We focus on non-minimal interactions generated by gauge invariant supercurrent multiplets which are bilinear in the superfield strength of the superspin $Y$ supermultiplet. We find two types of consistent supercurrents. The first one corresponds to conformal integer superspin $s$ supermultiplets, exist only for even values of $s, s=2ell+2$, for arbitrary values of $Y$ and it is unique. The second one, corresponds to Poincare integer superspin $s$ supermultiplets, exist for arbitrary values of $s$ and $Y$.
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In recent papers we demonstrated that consistent and non-trivial emph{linear} transformations of matter supermultiplets generate half-integer superspin supercurrents and the cubic interactions between matter and half-integer superspin supermultiplets
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