Multi-boundary effects in Dirichlet String Theory

Details Multi-boundary effects in Dirichlet String Theory Multi-boundary effects in Dirichlet String Theory

1995-02-16

arxiv.org/abs/hep-th/9502106v1

Nucl.Phys. B444 (1995) 487-522

Physics

High Energy Physics

High Energy Physics - Theory

38 pages,Latex,uses epsf,5 figures in uuencoded file

Scientific paper

10.1016/0550-3213(95)00192-U

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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