1998/01/30 by Matthias R. Gaberdiel, Tamás Hauer, Tamas Hauer +1 · 1 citation
Mathematics · Physics and Astronomy · #Axion #Black Holes and Theoretical Physics #Brane #Context (archaeology) #Cosmology and Gravitation Theories #Dilaton #Geodesic #Geometry #Heterotic string theory #Mathematical physics #Mathematics #Non-critical string theory #Particle physics #Particle physics theoretical and experimental studies #Physics #String (physics) #Superstring theory #Supersymmetry #Theoretical physics #hep-th
paper · pdf · doi:10.1016/s0550-3213(98)00290-9
published as Nucl.Phys. B525 (1998) 117-145 · 33 pages, LaTeX, eps figures
arxiv created 1998/01/30 · openalex publication_date 1998/08/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It is confirmed that geodesic string junctions are necessary to describe the gauge vectors of symmetry groups that arise in the context of IIB superstrings compactified in the presence of nonlocal 7-branes. By examining the moduli space of 7-brane backgrounds for which the dilaton and axion fields are constant, we are able to describe explicitly and geometrically how open string geodesics can fail to be smooth, and how geodesic string junctions then become the relevant BPS representatives of the gauge bosons. The mechanisms that guarantee the existence and uniqueness of the BPS representative of any gauge vector are also shown to generalize to the case where the dilaton and axion fields are not constant.