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arXiv · 1510.03837

A microscopic description of absorption in high-energy string-brane collisions

Giuseppe D'Appollonio·Paolo Di Vecchia·Rodolfo Russo·Gabriele Veneziano
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Abstract

We study the collision of a highly energetic light closed string off a stack of Dp-branes at (sub)string-scale impact parameters and in a regime justifying a perturbative treatment. Unlike at larger impact parameters - where elastic scattering and/or tidal excitations dominate - here absorption of the closed string by the brane system, with the associated excitation of open strings living on it, becomes important. As a first step, we study this phenomenon at the disk level, in which the energetic closed string turns into a single heavy open string at rest whose particularly simple properties are described.

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Giuseppe D'Appollonio, Paolo Di Vecchia, Rodolfo Russo, Gabriele Veneziano. 2015-10-13. A microscopic description of absorption in high-energy string-brane collisions. https://doi.org/10.1007/jhep03(2016)030

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