Nonlinear Supersymmetry Without the GSO Projection and Unstable D9-Brane
arXiv:hep-th/0010173 · doi:10.1016/S0550-3213(01)00090-6
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.
18 pages, no figure, further typos are corrected
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- Supersymmetric D3 brane and N=4 SYM actions in plane wave backgrounds
- Non-BPS Brane Dynamics And Duality
- Closed Strings from SO(8) Yang-Mills Instantons
- Covariantized Matrix theory for D-particles
- Rotating-Moving D-Branes with Background Fields in the Superstring Theory