Journal of High Energy Physics, ( ISI ), Year (2008-3)

Title : Entropy function for non-extremal D1D5 and D2D6NS5-branes ( Tachyon Couplings to Fermion )

Authors: Mohammad Reza Garousi ,

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By fixing the internal CP factor of tachyon and massless Ramond vertex operators in different pictures, we have shown that the internal CP factor of the disk level S-matrix elements of two fermions and odd number of tachyon vertex operators in the world volume of non-BPS D-branes/D-brane-anti-D-brane is zero. We have calculated the S-matrix element of two fermions and two tachyons which has non vanishing internal CP factor, and found the momentum expansion of this amplitude. In the abelian case, we have compared the two-fermion-two-tachyon coupling at low energy with the corresponding coupling in the gauge-fixed supersymmetric tachyon DBI action. The couplings in the two cases are exactly the same.

Keywords

Tachyon
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@article{paperid:1004649,
author = {Garousi, Mohammad Reza},
title = {Entropy function for non-extremal D1D5 and D2D6NS5-branes},
journal = {Journal of High Energy Physics},
year = {2008},
month = {March},
issn = {1029-8479},
keywords = {Tachyon condensation;},
}

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%0 Journal Article
%T Entropy function for non-extremal D1D5 and D2D6NS5-branes
%A Garousi, Mohammad Reza
%J Journal of High Energy Physics
%@ 1029-8479
%D 2008

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