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Tachyon condensation for intersecting branes at small and large angles
Authors:F Epple  D Lüst
Abstract:We review the worldsheet analysis for intersecting branes with focus on small and large angles. For small angles, we review the Yang‐Mills fluctuation analysis in 1] and find an additional family of massless modes. They are the components of a Goldstone scalar corresponding to the spontaneously broken U(2)‐gauge symmetry. For branes at large angles, we derive an effective tachyon field theory from BSFT results. We show how the gauge symmetry of this system implies a mass spectrum which is consistent with the worldsheet analysis.
Keywords:String theory  Higgs effect  Tachyon condensation  intersecting D‐branes
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