Journal of High Energy Physics, ( ISI ), Year (1998-12)

Title : Superstring Scattering from D-Branes Bound States ( Superstring Scattering from D-Branes Bound States )

Authors: Mohammad Reza Garousi ,

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Abstract

We derive fully covariant expressions for disk scattering amplitudes of any two massless closed strings in which mixed Neumann and Dirichlet world-sheet boundary conditions are included. From the two-point amplitudes, we derive the long range background fields and verify that they correspond to D$p$-brane bound state. Also, from the scattering amplitudes, we calculate the linear coupling of closed string fields to D-brane world-volume and show that they are consistent with Born-Infeld and Chern-Simons actions in the presence of a background field.

Keywords

, D-branes, Sting duality