High energy string-brane scattering for massive states

Abstract

String-brane interactions provide an ideal framework to study the dynamics of the massive states of the string spectrum in a non-trivial background. We present here an analysis of tree-level amplitudes for processes in which an NS-NS string state from the leading Regge trajectory scatters from a D-brane into another state from the leading Regge trajectory, in general of a different mass, at high energies and small scattering angles. This is done by using world-sheet OPE methods and effective vertex operators. We find that this class of processes has a universal dependence on the energy of the projectile and that the tree-level amplitudes are in agreement with the eikonal operator form of the string S-matrix.

28 pages, 2 figures

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• Measure for chaotic scattering amplitudes
• Higher Level String Resonances in Four Dimensions
• Scattering higher spins off D-branes
• Quantum hair and the string-black hole correspondence
• Microscopic unitary description of tidal excitations in high-energy string-brane collisions
• The leading eikonal operator in string-brane scattering at high energy
• A microscopic description of absorption in high-energy string-brane collisions
• On the Origin of Divergences in Time-Dependent Orbifolds
• Regge behavior saves String Theory from causality violations
• Closed String Radiation from the Interaction of the Moving D$p$-branes with Background Fields