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arXiv · hep-th/9809190

Partial breaking N=4 to N=2: hypermultiplet as a Goldstone superfield

S. Bellucci·E. Ivanov·S. Krivonos
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Abstract

We describe the partial breaking of $N=1 D=10$ supersymmetry down to $(1,0) d=6$ supersymmetry within the non-linear realization approach. The basic Goldstone superfield associated with this breaking is shown to be the $(1,0) d=6$ hypermultiplet superfield $q^{ia}$ subjected to a non-linear generalization of the standard hypermultiplet superfield constraint. The dynamical equations implied by this constraint are identified as the manifestly worldvolume supersymmetric equations of the Type I super 5-brane in D=10. We give arguments in favour of existence of an appropriate brane extension of off-shell hypermultiplet actions in harmonic superspace. Some related problems, in particular, the issue of utilizing other $(1,0) d=6$ supermultiplets as Goldstone ones, are shortly discussed.

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S. Bellucci, E. Ivanov, S. Krivonos. 1998-09-30. Partial breaking N=4 to N=2: hypermultiplet as a Goldstone superfield. https://doi.org/10.1002/(sici)1521-3978(20001)48%3A1%2F3%3C19%3A%3Aaid-prop19%3E3.0.co%3B2-u

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