Radiation from Accelerated Branes

Details Radiation from Accelerated Branes Radiation from Accelerated Branes

1999-09-21

arxiv.org/abs/hep-th/9909148v2

Phys.Rev. D61 (2000) 106007

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 25 pages, 2 figures; v2: added comments on the validity of the linear approximation, minor changes; version to appear i

Scientific paper

10.1103/PhysRevD.61.106007

The radiation emitted by accelerated fundamental strings and D-branes is studied within the linear approximation to the supergravity limit of string theory. We show that scalar, gauge field and gravitational radiation is generically emitted by such branes. In the case where an external scalar field accelerates the branes, we derive a Larmor-type formula for the emitted scalar radiation and study the angular distribution of the outgoing energy flux. The classical radii of the branes are calculated by means of the corresponding Thompson scattering cross sections. Within the linear approximation, the interaction of the external scalar field with the velocity fields of the branes gives a contribution to the observed gauge field and gravitational radiation.

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