Gauge couplings in four-dimensional type I string orbifolds

1999/06/30 by I. Antoniadis, C. Bachas, E. Dudas · 3 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Gauge (firearms) #Gauge theory #Homotopy and Cohomology in Algebraic Topology #Moduli #Noncommutative and Quantum Gravity Theories #Orbifold #Orientifold #String (physics) #Type (biology) #hep-ph #hep-th

paper · pdf · doi:10.1016/s0550-3213(99)00452-6

published as Nucl.Phys.B560:93-134,1999 · 54 pages, LaTeX, comments and references added, final version to appear in Nucl. Phys. B

arxiv created 1999/09/16 · openalex publication_date 1999/11/01 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We compute threshold effects to gauge couplings in four-dimensional Z_N orientifold models of type I strings with \cal N=2 and \cal N=1 supersymmetry, and study their dependence on the geometric moduli. We also compute the tree-level (disk) couplings of the open sector gauge fields to the twisted closed string moduli of the orbifold in various models and study their effects and that of the one-loop threshold corrections on gauge coupling unification. We interpret the results from the (supergravity) effective theory point of view and comment on the conjectured heterotic-type I duality

Citations

• Coordinate and Kähler σ-model anomalies and their cancellation in string effective field theories
• String theory dynamics in various dimensions
• Open strings in background gauge fields
• Pair creation of open strings in an electric field
• F-theory orientifolds, M-theory orientifolds, and twisted strings
• Superstring threshold corrections to Yukawa couplings
• Unification and extra space-time dimensions
• Type IIB orientifolds with NS-NS antisymmetric tensor backgrounds
• Threshold corrections to gauge couplings in orbifold compactifications
• Extra spacetime dimensions and unification
• Moduli dependence of string loop corrections to gauge coupling constants
• The Hierarchy Problem and New Dimensions at a Millimeter
• An Orientifold of Type-IIB Theory on K3
• Consistency Conditions for Orientifolds and D-Manifolds
• String unification, universal one-loop corrections and strongly coupled heterotic string theory

Cited by

• Supersymmetry without the desert
• Regularization techniques for the radiative corrections of Wilson lines and Kaluza-Klein states
• Loop corrections to volume moduli and inflation in string theory
• Four-dimensional string compactifications with D-branes, orientifolds and fluxes