Ghostbusters in higher derivative supersymmetric theories: who is afraid of propagating auxiliary fields?
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Publication:1636192
DOI10.1007/JHEP09(2016)106zbMATH Open1390.81427arXiv1608.01843OpenAlexW3106193585MaRDI QIDQ1636192
Author name not available (Why is that?)
Publication date: 12 June 2018
Published in: (Search for Journal in Brave)
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 appears, which can be regarded as a generalization of the R-symmetry.
Full work available at URL: https://arxiv.org/abs/1608.01843
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