High-energy asymptotics of D-brane decay amplitudes from Coulomb gas electrostatics

Preprint number: CP3-Origins-2010-35
Authors: Matti Jarvinen (CP3-Origins), Niko Jokela (Technion & University of Haifa), and Esko Keski-Vakkuri (Helsinki Institute of Physics & University of Helsinki)
External link: arXiv.org

We study the high-energy limit of tree-level string production amplitudes from decaying D-branes in bosonic string theory, interpreting the vertex operators as external charges interacting with a Coulomb gas corresponding to the rolling tachyon background, and performing an electrostatic analysis. In particular, we consider two open string – one closed string amplitudes and four open string amplitudes, and calculate explicit formulas for the leading exponential behavior.