Exact Standard Model Structures from Intersecting Branes

Abstract

I discuss two types of non-supersymmetric string model constructions that give at low energy exactly the Standard model (SM) with no additional matter/and or gauge group factors. The construction is based on D6 branes intersecting at angles in a compactification of type IIA theory on a decomposable orientifolded $T^6$ torus. The first type is based on five and six stack SM-like constructions at the string scale while, the other construction is based on a four stack GUT left-right symmetric structure centered around the Pati-Salam $SU(4{)}_C\times SU(2{)}_L\times SU(2{)}_R$ gauge group. All classes of models exbibit important phenomenological properties including a stable proton and sizes of neutrino masses in consistency with neutrino oscillation experiments. The models are non-SUSY, but amazingly, they allow the existence of supersymmetric particles!

Based on a talk given at the 1st International Conference on String Phenomenology, Oxford, 6-11 July 2002, references added

References in corpus (2)

• Orientifolds of K3 and Calabi-Yau Manifolds with Intersecting D-branes
• Exact Standard model Structures from Intersecting D5-Branes

Cited by in corpus (5)

• New Supersymmetric String Compactifications
• Scattering of Gauge, Matter, and Moduli Fields from Intersecting Branes
• 4D Anomalous U(1)'s, their masses and their relation to 6D anomalies
• Flavour Changing Neutral Currents in Intersecting Brane Models
• Vector Bundle Extensions, Sheaf Cohomology, and the Heterotic Standard Model