Intersecting Brane Worlds at One Loop

Details Intersecting Brane Worlds at One Loop Intersecting Brane Worlds at One Loop

2005-12-06

arxiv.org/abs/hep-th/0512072v3

JHEP0602:049,2006

Physics

High Energy Physics

High Energy Physics - Theory

35 pages, 3 figures; added reference, corrected typos, JHEP style

Scientific paper

10.1088/1126-6708/2006/02/049

We develop techniques for one-loop diagrams on intersecting branes. The one-loop propagator of chiral intersection states on D6 branes is calculated exactly and its finiteness is shown to be guaranteed by RR tadpole cancellation. The result is used to demonstrate the expected softening of power law running of Yukawa couplings at the string scale. We also develop methods to calculate arbitrary N-point functions at one-loop, including those without gauge bosons in the loop. These techniques are also applicable to heterotic orbifold models.

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