Journal of High Energy Physics, ( ISI ), Year (2003-4)

Title : Off-shell extension of S-matrix elements and tachyonic effective actions ( Off-shell extension of S-matrix elements and tachyonic effective actions )

Authors: Mohammad Reza Garousi ,

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We show that the on-shell S-matrix elements of four open string massless scalars, two scalars and two tachyons, and four open string tachyons in the super string theory can be written in a unique form. We then propose an off-shell extension for the S-matrix element of four scalars which is consistent, in the low energy limit, with the Dirac-Born-Infeld effective action. Using a similar off-shell extension for the S-matrix element of two scalars and two tachyons and for the S-matrix element of four tachyons, we show that they are fully consistent with the tachyonic DBI action.

Keywords

, D-branes, Tachyon
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@article{paperid:325,
author = {Garousi, Mohammad Reza},
title = {Off-shell extension of S-matrix elements and tachyonic effective actions},
journal = {Journal of High Energy Physics},
year = {2003},
month = {April},
issn = {1029-8479},
keywords = {D-branes;Tachyon condensation},
}

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%0 Journal Article
%T Off-shell extension of S-matrix elements and tachyonic effective actions
%A Garousi, Mohammad Reza
%J Journal of High Energy Physics
%@ 1029-8479
%D 2003

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