On modified tachyon DBI action

Abstract

Recently a modification of the tachyon DBI action has been proposed in which the tachyon carries the internal CP matrix σ_1 and σ_2. In this paper, we find the momentum expansion of the disk level S-matrix element of four tachyons and one gauge field in superstring theory and show that the first and second order terms of the expansion are in perfect agreement with the above tachyon DBI action.

15 pages, no figure; V2: typos corrected, a reference added; V3: the final version to appear in Nucl. Phys. B

References in corpus (4)

• On Wess-Zumino terms of Brane-Antibrane systems
• Non-abelian expansion of S-matrix elements and non-abelian tachyon DBI action
• Higher derivative corrections to Wess-Zumino action of Brane-Antibrane systems
• On effective actions of non-BPS branes and their higher derivative corrections

Cited by in corpus (5)

• More on WZ action of non-BPS branes
• On higher derivative corrections to Wess-Zumino and Tachyonic actions in type II super string theory
• Inhomogeneous tachyon dynamics and the zipper
• Non Abelian Geometrical Tachyon
• Dirac-Born-Infeld actions and Tachyon Monopoles