Nonlinear Supersymmetry Without the GSO Projection and Unstable D9-Brane
High Energy Physics - Theory
2009-10-31 v4
Abstract
Orientable open string theories containing both bosons and fermions without the GSO projection are expected to have the 10 dimensional N=2(A) space-time supersymmetry in a spontaneously broken phase. We study the low-energy theorem for the nonlinearly realized N=2 supersymmetry using the effective action for an unstable D9-brane. It is explicitly confirmed that the 4-fermion open string amplitudes without the GSO projection obey the low-energy theorem derived from the nonlinear N=2 supersymmetry. An intimate connection between the existence of the hidden supersymmetry and the open-open string (s-t) duality is pointed out.
Keywords
Cite
@article{arxiv.hep-th/0010173,
title = {Nonlinear Supersymmetry Without the GSO Projection and Unstable D9-Brane},
author = {Tabito Hara and Tamiaki Yoneya},
journal= {arXiv preprint arXiv:hep-th/0010173},
year = {2009}
}
Comments
18 pages, no figure, further typos are corrected