378 citations · 3.7k across the 99 of their papers we have counts for
4 papers · 1 filter
Brane-Antibrane Kinetic Mixing, Millicharged Particles and SUSY Breaking
Steven Abel, Ben Schofield
It is known that hidden U(1) gauge factors can couple to visible U(1)'s through Kinetic Mixing. This phenomenon is shown generically to occur in nonsupersymmetric string set-ups, b…
N-point Amplitudes in Intersecting Brane Models
S. A. Abel, A. W. Owen
We derive general and complete expressions for N-point tree-level amplitudes in Type II string models with matter fields localised at D-brane intersections.
Hagedorn Inflation: Open Strings on Branes Can Drive Inflation
Steven Abel, Katherine Freese, Ian Kogan
We demonstrate an inflationary solution to the cosmological horizon problem during the Hagedorn regime in the early universe. Here the observable universe is confined to three spat…
Quark and Lepton Masses and Mixing Angles from Superstring Constructions
S. A. Abel, C. Munoz
We show that the observed structure of quark and lepton masses and mixing angles can arise entirely geometrically from superstring constructions, at the renormalizable level. The m…