Ghostbusters in higher derivative supersymmetric theories: who is afraid of propagating auxiliary fields?

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18 Citations (Scopus)

Abstract

We present for the first time a ghost-free higher-derivative chiral model with a propagating auxiliary F-term field (highest component of the chiral multiplet). We obtain this model by removing a ghost in a higher derivative chiral model, with Higgsing it in terms of an auxiliary vector superfield. Depending on the sign of the quadratic derivative term of the chiral superfield, the model contains two ghost free branches of the parameter regions. We find that supersymmetry is spontaneously broken in one branch while it is preserved in the other branch. As a consequence of dynamical F-term field, a conserved U(1) charge corresponding to the number density of F appears, which can be regarded as a generalization of the R-symmetry.

Original languageEnglish
Article number106
JournalJournal of High Energy Physics
Volume2016
Issue number9
DOIs
Publication statusPublished - 2016 Sep 1

Keywords

  • Superspaces
  • Supersymmetric Effective Theories
  • Supersymmetry Breaking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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