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arXiv · hep-th/9909171

High Energy Scattering on Distant Branes

C. Bachas·B. Pioline
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Abstract

We consider the elastic scattering of two open strings living on two D-branes separated by a distance $r$. We compute the high-energy behavior of the amplitude, to leading order in string coupling, as a function of the scattering angle $ϕ$ and of the dimensionless parameter $v= r/(πα^\prime\sqrt{s})$ with $\sqrt{s}$ the center-of-mass energy. The result exhibits an interesting phase diagram in the $(v,ϕ)$ plane, with a transition at the production threshold for stretched strings at $v=1$. We also discuss some more general features of the open-string semiclassical world-sheets, and use T-duality to give a quantum tunneling interpretation of the exponential suppression at high-energy.

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C. Bachas, B. Pioline. 1999-09-23. High Energy Scattering on Distant Branes. https://doi.org/10.1088/1126-6708%2F1999%2F12%2F004

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