2005/12/31 by Steven Abel, Steven A. Abel, Mark D. Goodsell · 1 citation
Engineering · Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Combinatorics #Engineering #Heterotic string theory #Intersection (aeronautics) #Loop (graph theory) #Mathematical physics #Mathematics #Orbifold #Particle physics #Particle physics theoretical and experimental studies #Physics #Propagator #Quantum Chromodynamics and Particle Interactions #String (physics) #Tadpole (physics) #Theoretical physics #Topology (electrical circuits) #Yukawa potential #hep-th
paper · pdf · doi:10.1088/1126-6708/2006/02/049
published as JHEP0602:049,2006 · 35 pages, 3 figures; added reference, corrected typos, JHEP style
arxiv created 2006/01/25 · openalex publication_date 2006/02/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.