Interactions in intersecting brane models

2003/03/31 by S.A. Abel, S. A. Abel, A. W. Owen +1 · 5 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Conformal field theory #Cosmology and Gravitation Theories #Fermion #Field (mathematics) #Field theory (psychology) #Limit (mathematics) #Non-critical string theory #Quantum Chromodynamics and Particle Interactions #Scattering amplitude #String (physics) #String field theory #hep-ph #hep-th

paper · pdf · doi:10.1016/s0550-3213(03)00370-5

published as Nucl.Phys. B663 (2003) 197-214 · 17 pages, 10 figures. References added and typos corrected. Version to be published. Minor corrections

arxiv created 2003/04/29 · openalex publication_date 2003/06/21 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We discuss tree level three and four point scattering amplitudes in type II string models with matter fields localized at the intersections of D-brane wrapping cycles. Using conformal field theory techniques we calculate the four fermion amplitudes. These give "contact" interactions that can lead to flavour changing effects. We show how in the field theory limit the amplitudes can be interpreted as the exchange of Kaluza-Klein excitations, string oscillator states and stretched heavy string modes.

Citations

• CP violation and CKM predictions from discrete torsion
• Hybrid inflation in intersecting brane worlds
• Divergences in Kaluza-Klein models and their string regularization

Cited by

• Operator analysis of physical states on magnetized T2/ZN orbifolds
• Yukawa's of light stringy states
• Yukawa coupling structure in intersecting D-brane models
• A realistic world from intersecting D6-branes
• Intersecting brane worlds at one loop