# Comments on complete actions for open superstring field theory

Journal of High Energy Physics, Nov 2016

We clarify a Wess-Zumino-Witten-like structure including Ramond fields and propose one systematic way to construct gauge invariant actions: Wess-Zumino-Witten-like complete action S WZW. We show that Kunitomo-Okawa’s action proposed in arXiv:​1508.​00366 can obtain a topological parameter dependence of Ramond fields and belongs to our WZW-like framework. In this framework, once a WZW-like functional ${\mathcal{A}}_{\eta }={\mathcal{A}}_{\eta}\left[\Psi \right]$ of a dynamical string field Ψ is constructed, we obtain one realization of S WZW[Ψ] parametrized by Ψ. On the basis of this way, we construct an action $\tilde{S}$ whose on-shell condition is equivalent to the Ramond equations of motion proposed in arXiv:​1506.​05774. Using these results, we provide the equivalence of two theories: arXiv:​1508.​00366 and arXiv:​1506.​05774.

This is a preview of a remote PDF: https://link.springer.com/content/pdf/10.1007%2FJHEP11%282016%29115.pdf

Hiroaki Matsunaga. Comments on complete actions for open superstring field theory, Journal of High Energy Physics, 2016, 115, DOI: 10.1007/JHEP11(2016)115