Contact terms, symmetries and D-instantons
classification
✦ hep-th
keywords
antisymmetriccontactd-instantonstensortermsboundarychangingclosed
read the original abstract
The scattering of NS-NS antisymmetric tensor states in the presence of D-instantons in type IIB superstring theory is studied. It is shown that in order to preserve gauge invariance, spacetime supersymmetry and picture changing symmetry the inclusion of boundary contact terms for closed string antisymmetric tensor vertex operators is necessary.
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