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arXiv · hep-th/9502106

Multi-boundary effects in Dirichlet String Theory

Michael Gutperle
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Abstract

String amplitudes with an arbitrary number of world-sheet boundaries on which the coordinates satisfy Dirichlet boundary conditions are analyzed in a path integral framework. Special attention is payed to the novel divergences associated with such conditions. Certain helicity amplitudes involving massless closed-string states are free of such divergences to all orders in perturbation theory and their behavior can be analysed unambiguously. The high energy fixed-angle behavior of these amplitudes is discussed in the presence of one or two boundaries and the asymptotic behavior of the amplitudes is shown to be power behaved.

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Michael Gutperle. 1995-02-16. Multi-boundary effects in Dirichlet String Theory. https://doi.org/10.1016/0550-3213(95)00192-u

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