One-loop Correction of the Tachyon Action in Boundary Superstring Field Theory

Details One-loop Correction of the Tachyon Action in Boundary Superstring Field Theory One-loop Correction of the Tachyon Action in Boundary Superstring Field Theory

2001-04-19

arxiv.org/abs/hep-th/0104164v2

Phys.Lett. B510 (2001) 285-294

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, latex. A new section has been added to clarify the misinterpretation of the early result. Typos and minor correction

Scientific paper

10.1016/S0370-2693(01)00596-2

We compute one-loop correction to the string field theory action of the tachyon for unstable D-branes in the framework of the boundary superstring field theory. We would expect that the one-loop correction comes from the partition function of the two-dimensional world-sheet theory on the annulus. The annulus correction suggests that the genus expansion is, somehow, governed by the effective string coupling defined in terms of the tachyon \lambda=g_s exp(-T^2/4).

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